Schematic for PiStrument: Raspberrypi Pico-based sampler,...

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PICO

Below is a summary based on the official Raspberry Pi Pico (RP2040) datasheet and associated documentation. This information applies to the PICO (Raspberry Pi Pico Shield) in your project. For complete details, you can refer to the official Raspberry Pi Pico Datasheet available from Raspberry Pi’s website (for example, Raspberry Pi Pico Datasheet).

Below, the pins have been grouped by their general function along with key electrical characteristics and special considerations:

1. Power and System Control Pins

Pin Name	Function	Electrical Characteristics	Special Considerations
VBUS	Supplies the 5 V from the USB input	5 V input available from USB	Used to power on-board circuits; ensure USB supply stability
VSYS	Main system supply voltage	Accepts 1.8 V to 5.5 V (subject to on-board regulator specs)	Must be within range for proper regulator performance
3V3(OUT)	Regulated 3.3 V output	Provides up to ~300 mA; outputs 3.3 V	Avoid overloading; ensure total current does not exceed regulator limits
GND / AGND	Ground references	0 V potential reference	Use AGND for analog circuits (e.g., ADC); keep stable clean ground connections
3V3_EN	Enables/disables the 3.3 V regulator	TTL-level input (typically high to enable)	Pull low to disable 3.3 V output if required by your design
RUN	Reset control for the RP2040	Active low (pulling low resets the microcontroller)	Use proper debouncing if externally triggered

2. General-Purpose I/O (GPIO) Pins

The Pico features multiple GPIO pins that can be configured as digital inputs or outputs. Their typical characteristics are:

Table

Pin Group	Function	I/O Characteristics	Special Considerations
GPIO0 to GPIO28 (select examples below)	Digital I/O – configurable as input or output	Input: LOW if ≤0.8 V, HIGH if ≥2 V; Output: 0 V (LOW) or 3.3 V (HIGH) with drive strength options (2 mA, 4 mA, 8 mA, or 12 mA)	The combined cumulative current across all GPIOs should not exceed ~50 mA. Use pull-up or pull-down resistors where needed to ensure stable logic levels.
GPIO23	(Specialized) May control power-saving functions (varies by firmware configuration)	Same as other GPIOs when used as digital pins	Refer to application notes for correct power-save configuration
GPIO24	VBUS Sense	Digital input that goes HIGH when USB power is applied	Can be used to detect connection of a USB supply
GPIO25	Onboard LED (default demo LED)	Digital output (0 V/3.3 V)	Often used as an activity indicator in examples

3. Analog and ADC-Capable Pins

The RP2040 offers a built-in 12‑bit ADC over a few dedicated channels:

Table

Pin Name	Function	I/O Characteristics	Special Considerations
GPIO26 (ADC0)	Analog input channel 0	Reads analog voltages between 0 V and 3.3 V with 12‑bit resolution	Ensure input voltage does not exceed 3.3 V for accuracy and safety
GPIO27 (ADC1)	Analog input channel 1	Identical ADC characteristics as ADC0	Consider decoupling and low-noise design for accurate measurement
GPIO28 (ADC2)	Analog input channel 2	Same as above	Use proper filtering if measuring low-level signals

4. Communication Interfaces and PWM

The Pico supports several common protocols, and many GPIO pins serve dual functions:

Table

Interface	Example Pin Assignments	I/O Characteristics	Special Considerations
UART	Default: GPIO0 (TX), GPIO1 (RX); alternative pairs available	Standard TTL levels (3.3 V logic)	Ensure matching baud rates; these pins are remappable if needed
I2C	Default: GPIO4 (SDA), GPIO5 (SCL) or alternate assignments	Open-drain configuration; require external pull-up resistors (e.g., 4.7 kΩ or 10 kΩ)	Proper bus termination and pull-ups are critical for reliable communication
SPI	Example: SPI0 uses GPIO16 (RX), GPIO19 (TX), GPIO18 (SCK), GPIO17 (CS)	High-speed CMOS digital signaling	Maintain short, impedance-controlled traces for high-speed data integrity
PWM	Many GPIOs may be assigned to PWM channels (e.g., GPIO0/16 to PWM channel 0A, etc.)	Digital output with configurable pulse widths	Ideal for controlling brightness of LEDs or motor speed; ensure proper slew rate for your load

5. Debugging and Special Function Pins

Pin Name	Function	I/O Characteristics	Special Considerations
SWD (SWDIO and SWCLK)	Used for Serial Wire Debug (programming and code debugging)	3.3 V digital signals with precise timing requirements	Use a compatible debug probe; ensure these pins are not repurposed in your design

Additional Considerations

Configuration Flexibility: Most GPIO pins are multipurpose and can be remapped via software. Their configuration (input, output, alternate functions) is defined in your firmware.
Electrical Limitations: While each GPIO can drive a maximum of about 12 mA, always check the combined current load to stay within the overall limit (~50 mA) to avoid stressing the microcontroller.
Noise and Interference: For analog measurements (using ADC channels), ensure proper decoupling capacitors and low-noise layout practices.
Programming and Debugging: Use the SWD interface carefully when programming the RP2040, and avoid conflict with any alternate functions assigned to SWD pins.

This summary covers the primary groups of pins on the Raspberry Pi Pico Shield. Each pin’s configuration is flexible; therefore, when designing your circuit, consult the official datasheet and application notes to ensure that every pin is employed correctly for its intended function.

Let me know if you need further help in applying this information to your schematic or if you'd like to connect any of these pins in your Flux project.

292 days

Ready.

MicroAmp

DAC AMP

Display

Speaker

This power supply line comes from the display internal regulator

Vcc

Connect them

What is it

This power supply line comes from the display internal regulator

Someone is typing...

The display has its own regulator + level shifter. For this reason we give it 5V...

renzormz

DisplayPort

giulioz

The display has its own regulator + level shifter. For this reason we give it 5V supply. The digital I/O should use 3.3v thanks to the level shifter. We use its regulator output to power the LEDs, to avoid stressing the Pico regulator.

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deleted comment, thread stayed

dominic-dev

deleted comment, thread stayed

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please explain what ENCODER does.

marietta.pink283308

ghu

shivax75

@copilot my midi needs a USB connection. Let's make the necessary connection.

copilot

Sure, I can help you with that. If you're looking to connect your Raspberry Pi Pico (designator PICO) to a USB MIDI device, you'll need a USB breakout board. However, it seems that there is no USB component in your project yet.

If you had such a component, you would connect it as follows:

Connect the USB breakout board's VCC pin to the Pico's VSYS or VBUS pin
Connect the USB breakout board's GND pin to any of the PICO's GND pin
Connect the USB breakout board's D- pin to the PICO's USB D- pin (which it doesn't have)
Connect the USB breakout board's D+ pin to the PICO's USB D+ pin (which it doesn't have)

Unfortunately, I don't see USB D+ or USB D- pins on your Raspberry Pi Pico (designator PICO) in your description. This might be due to the board version or the way your PICO is represented in the schematic provided. If your board does have these connections available (e.g. on a micro USB B port or as exposed pins), make sure they're included in your project components and connections for an accurate connectivity assessment.

If these pins aren't available in the version of the board you're using, you might need to consider a different version of the board or a module that provides these pins.

william-a-b

@copilot please explain what ENCODER does.

copilot

The ENCODER in your project is a rotary encoder, specifically a Bourns PEC11R-4215F-S0024. It's an electromechanical device that can convert the angular position or motion of a shaft into analog or digital output signals.

In your design, it's likely being used for user input. For example, it may be manipulating some parameter on the PiStrument like volume, pitch, sample selection, etc.

It has two signal outputs (A and B) that can be used to determine the direction of rotation and one output (~) for the integrated push button. These outputs are usually connected to the GPIOs of a microcontroller, in your case to GPIO27_ADC1, GPIO28_ADC2, and GPIO22 on the Raspberry Pi Pico (PICO). It's a handy part to use in an interface where a potentiometer might otherwise be used, but continuous rotation or an integrated switch are necessary.

Its advantage is that it can fully rotate without stops (unlike potentiometers). And by observing its output, it can determine both the direction of rotation and the degrees of rotation. The latter could be useful to make a selection from a list of options (e.g., sound samples) or increment/decrement a value with precision (e.g., volume or pitch).

shivax75

@copilot help what do I need to connect a midi organ to the project

copilot

If you wish to connect a MIDI organ to your project, you'll need a microcontroller that can process MIDI data. Here, your Raspberry Pi Pico can be used for this purpose. You'll need to establish a MIDI interface between your MIDI organ and the Pico. This will typically be done through a standard 5-pin DIN MIDI connector or through a USB connection.

To use the Raspberry Pi Pico to receive and interpret MIDI messages, you will require additional software. You can write a MIDI handler in MicroPython or C/C++. Midiutils could be a good library to use if you decide to write your software in C/C++.

Now, because MIDI operates at a 31.25 kbaud rate, which doesn't match any standard UART baud rates, you'll need a MIDI to UART bridge or a driver that can handle the non-standard baud rate.

For traditional 5-pin DIN MIDI interface, here are the electrical connections you need to make:

Use an opto-isolator such as the 6N138, which is standard for MIDI inputs. It helps eliminate ground loops and isolates your Raspberry Pi Pico.
Connect the MIDI In (PIN 4) to the cathode of a diode, and anode to the voltage source.
Connect the emitter of the opto-isolator to GND.
Connect the collector to the RX pin (any GPIO can be used) on the Raspberry Pi Pico via a resistor.
The RX pin should also be connected to the voltage source via a pull-up resistor.

If you are using USB MIDI, you won't need to worry about the above hardware setup. But you will need to handle the USB host functionality. Unfortunately, the Raspberry Pi Pico doesn't natively support USB Host functionality, so you would need a separate chip for that, such as the USB Host Shield, along with a MIDI USB library that can run on the Raspberry Pi Pico.

Please note: it's important to power off all the equipment before making any connections and follow safety precautions.

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create a high level mermaid block diagram of this project. Include key component...

collen138866

@copilot create a high level mermaid block diagram of this project. Include key component's manufacturer part number in each block whenever possible.

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list all B0 pins in a table format. For each pin provide its pin number, pin nam...

florigold836166

@copilot list all B0 pins in a table format. For each pin provide its pin number, pin name and function.

11mo

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Here we are using the USB 5V as power supply but 3.3V logic from the pico. Every...

yed

What is used

dominic-dev

Testing if I can add to this thread

giulioz

Here we are using the USB 5V as power supply but 3.3V logic from the pico. Every one of them is an input and 3.3v tolerant so it should be ok.

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what is controller ?

mrabah

@copilot what is controller ?

copilot

The controller in the user's project is a Raspberry Pi Pico, designated as PICO. It's a small, low-cost microcontroller board with flexible digital interfaces.

Here are some of its features:

Dual-core Arm Cortex M0+ processor
2MB of Flash memory
26 multifunction GPIO pins, including 3 analog inputs
A variety of interfacing options, such as I2C, SPI, and UART.

It's great for learning electronics and programming, rapid prototyping of IoT projects, and building low-cost embedded systems.

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Testing

Testing from main

Add another comment

And again

234

123

Test

Testing again

Testing

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@docbrown, tell me more about this project?

jharwinbarrozo

@docbrown, tell me more about this project?

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What this circuits does ?

friquero

@copilot What this circuits does ?

copilot

This circuit is designed to function as a Raspberry Pi Pico-based musical instrument, specifically a sampler, sequencer, and drum machine, drawing inspiration from the iconic TR-808 synthesizer. Here's a breakdown of its functionality based on the components and connections outlined in the project:

Core Components and Their Functions:

Raspberry Pi Pico (Designator: PICO): Acts as the brain of the device, controlling the sequencing, sound synthesis, and user interaction based on the programming loaded into it. The wide range of GPIO pins on the Pico are utilized for interfacing with various peripherals.
Momentary Step Switches (Designators: B0 to B8): These switches likely serve as input for triggering samples or sequences, allowing users to program and control the rhythm.
Adafruit I2S Amplifier (Designator: MicroAmp): Amplifies audio signals to drive the speaker, enabling the output of sounds generated or sampled by the device.
Embedded Speaker (Designator: Speaker): Outputs the audio signals processed by the Pico and amplified by the I2S amplifier, producing the actual sound that can be heard by users.
Display (Designator: Display): Provides a visual interface for the user, probably showing parameters, sequences, or other important information to aid in the operation of the device.
SIPO (Serial-In, Parallel-Out) Shift Register (Designator: SIPO1): Is used to expand the number of digital outputs of the Pico, likely to control more LEDs or other indicators without occupying many GPIO pins.
Rotary Encoder (Designator: ENCODER): Allows users to navigate through menus or adjust parameters smoothly, contributing to the overall user interface.

Functionality Overview:

The device allows users to:

Create rhythms and sequences using the momentary switches that emulate the step-sequencing functionality of a drum machine.
Manipulate sounds or control parameters through the rotary encoder, providing a tactile interface for real-time sound shaping or navigation.
View sequences, samples, and operational modes on the display, enhancing usability and interaction.
Hear the produced musical patterns through the embedded speaker, making it a standalone instrument with auditory feedback.

Connections between the components, such as those leading to the amplifier and speaker for sound output and to the switches and encoders for input, are specifically designed to enable this functionality. The use of a microcontroller like the Raspberry Pi Pico allows for programmable and flexible software implementations that can emulate classic devices like the TR-808 or introduce new digital instruments based on the requirements and creativity of the user.

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list all ICs and the decoupling capacitors attached to each. Ensure to include a...

keri603772

@copilot list all ICs and the decoupling capacitors attached to each. Ensure to include all ICs present in the design, including digital ICs, power converters, LDOs, etc. For every IC, clearly state:

What power net the decoupling capacitors are attached to. What is the stated voltage of that net.
The voltage rating and value of the attached decoupling capacitors.
Signal with the expression “[WARNING]” if any of the following conditions are met: no decoupling capacitors are attached; the voltage of the power net is higher than the voltage rating of the capacitor; No voltage range was stated for the capacitor. Give a separate “[WARNING]” for each condition. Signal with the expression “[OK]” if none of those conditions are met
Express the result in a markdown-formatted table

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explain this project.

frakash

@copilot explain this project.

copilot

This project, named PiStrument, is a creative endeavor to design a Raspberry Pi Pico-based musical instrument that integrates the functionalities of a sampler, sequencer, and drum machine, taking inspiration from the iconic TR-808 synthesizer. The design utilizes various components, including an embedded speaker for audio output, an Adafruit I2S amplifier for sound amplification, and momentary step switches for operation. Below is a simplified breakdown:

Core Components:

Raspberry Pi Pico (Designator: PICO): Serves as the brain of the instrument, handling digital signal processing, user inputs, and controlling other components.
Momentary Step Switches (Designators: B0, B1, B2, B3, B4, B5, B6, B7, B8): These are used for input, similar to the step sequencer buttons on a drum machine, allowing the user to program sequences and trigger sounds.
Adafruit I2S Amplifier (Designator: MicroAmp): This component amplifies the audio signal generated by the PICO before it's sent to the speaker.
Embedded Speaker (Designator: Speaker): Outputs the audio signals as sound, allowing the user to hear the sequenced beats or samples directly from the device.
Display (Designator: Display): Provides a visual interface for the user, potentially to navigate through menus, adjust settings, or visualize sequences.
Rotary Encoder (Designator: ENCODER, Model: PEC11R-4215F-S0024): Offers input for navigating the interface or adjusting parameters within the PiStrument.
SIPO (Serial-In Parallel-Out) Register (Designator: SIPO1, Model: SN74HC595N): Used to increase the number of outputs from the PICO, facilitating control over multiple LEDs or other indicators without exhausting all GPIO pins on the PICO.

Design Features:

Integration with Standard and Power Nets: Various nets are defined to organize connections, like power distribution (VCC5v, VCC3v3_LCD) and ground connections (numerous GND designations) efficiently across the project.
LEDs in Switches: Most of the buttons (B0, B1, B2, etc.) have designated pins for LED control, allowing visual feedback through lighting, which enhances user interaction.
Sound Generation and Amplification: Through the DAC AMP (Designator: DAC AMP) component and an external amplifier (MicroAmp), the system is capable of producing complex audio signals. The Raspberry Pi Pico, with its GPIO capabilities, interfaces with these components to generate sounds.

Connectivity and Controls:

A significant part of the project involves connecting these components through logical nets to ensure they communicate effectively, power distribution is managed, and user input is accurately captured and processed. This includes specific nets for power distribution, ground connections, data transfer for the display, audio signal paths, and control signals for toggling LEDs and interfacing with the rotary encoder.

Final Objective:

The project aims to create a portable, versatile musical instrument that combines the nostalgic feel of classic drum machines with modern microcontroller technology, enabling users to create music interactively.

Someone is typing...

list all ICs and the decoupling capacitors attached to each. Ensure to include a...

opalina711651

@copilot list all ICs and the decoupling capacitors attached to each. Ensure to include all ICs present in the design, including digital ICs, power converters, LDOs, etc. For every IC, clearly state:

What power net the decoupling capacitors are attached to. What is the stated voltage of that net.
The voltage rating and value of the attached decoupling capacitors.
Signal with the expression “[WARNING]” if any of the following conditions are met: no decoupling capacitors are attached; the voltage of the power net is higher than the voltage rating of the capacitor; No voltage range was stated for the capacitor. Give a separate “[WARNING]” for each condition. Signal with the expression “[OK]” if none of those conditions are met
Express the result in a markdown-formatted table

11mo

Someone is typing...

How this circuits works ?

friquero

@copilot How this circuits works ?

copilot

The PiStrument project described is a multifunctional device based on the Raspberry Pi Pico, designed as a sampler, sequencer, and drum machine, inspired by the iconic TR-808 synthesizer. It incorporates various components including an embedded speaker, an Adafruit I2S amplifier, momentary step switches, and more. Let's break down its operation focusing on key components and nets:

Raspberry Pi Pico (PICO)

The Raspberry Pi Pico serves as the brain of the PiStrument. It controls various peripherals through its GPIO pins and manages the audio processing required for the sampler and drum machine functionalities.

Buttons (B0, B1, ... B8)

These momentary step switches provide user input. They could be used to trigger samples, change sequences, or modify drum machine patterns. Each button has output pins connected to specific GPIO pins on the Raspberry Pi Pico for input detection.

Encoder (ENCODER)

The rotary encoder allows for menu navigation, parameter adjustment, or any other cyclic input needed in the device’s operation.

MicroAmp (MicroAmp)

This component amplifies the audio signal before being sent to the speaker. The Pi Pico sends the audio output, which is then amplified and delivered to the speaker, enabling sound playback.

DAC AMP (DAC AMP)

The Digital to Analog Converter (DAC) and amplifier module is crucial for converting digital audio signals from the Pi Pico into analog signals that can drive the speaker to produce sound.

Display (Display)

The display is likely used to show the current state of the device, such as the selected sound, current pattern, or settings. The Pi Pico controls the display via SPI and other control pins.

Speaker (Speaker)

The speaker outputs the sound. Its input is connected to the DAC AMP, which provides the analog signal converted from the digital audio signals processed by the Pi Pico.

Serial-in Parallel-out Shift Register (SIPO1)

The SN74HC595N serial-in parallel-out shift register expands the GPIO capabilities of the Raspberry Pi Pico by converting serial input to parallel output. This is useful for controlling multiple LEDs or reading from multiple buttons with fewer GPIO pins.

Power Supply

The VCC5v and VCC3v3_LCD nets indicate power supplies for different components. The Raspberry Pi Pico, likely powered by the USB input (VBUS), distributes 3.3V and 5V to various components as needed.

Operation Flow

User Input: Through buttons and the encoder, the user can interact with PiStrument, selecting different modes, sounds, or sequences.
Signal Processing: The Raspberry Pi Pico processes these inputs, generating or modifying audio signals accordingly. This may involve playing a sample, starting a sequence, or modifying parameters.
Audio Output: Digital audio signals are sent to the DAC AMP, converted to analog, amplified, and played out through the speaker.
Visual Feedback: The display shows information related to the current operations, selections, and settings, providing visual feedback to the user.

This circuit cleverly combines input devices, processing power, and output components to create a versatile musical instrument. The use of GPIO expanders and efficient power distribution enables a compact yet powerful design.

Someone is typing...

explain this project.

doitnow

@copilot explain this project.

copilot

This project, named PiStrument, is a RaspberryPi Pico-based sampler, sequencer, and drum machine, which pays homage to the famous TR808 synthesizer. Some specific characteristics of the project include an embedded speaker, an Adafruit I2S amplifier, and momentary step switches.

Here's an overview of the key components used in the project:

Raspberry Pi Pico: This is a microcontroller board based on Arm’s Cortex-M0+ cores and is the brain of the project.
Switches (B0, B1, B2, B3, B4, B5, B6, B7, B8): These are momentary step switches. They input sequences into the drum machine. Each button also includes an LED indicator. The URL for these switches leads to adafruit's product page, which means these are probably Adafruit's soft tactile buttons with built-in LEDs.
Resistors (R1, R2, R3, R4, R5, R6, R7, R8, R9): These resistors likely limit the current flowing through various parts of the circuit.
SN74HC595N (Designator: SIPO1): This is a serial-in, parallel-out shift register. The SN74HC595N is commonly used for extending the number of outputs in a microcontroller. In this case, it appears to be controlling the LEDs in the switches, since its outputs are connected through resistors to the LEDs.
Encoder (Designator: ENCODER): This could be a rotary encoder used for menu control or parameter adjustments. It has signal lines (A and B) that are wired to GPIO inputs on the Raspberry Pi Pico.
Adafruit I2S Amp (Designator: DAC AMP): This is a digital audio amplifier. The I2S (Inter-IC Sound) protocol carried by the Raspberry Pi Pico is used as the input to this amp. Its output feeds into the next component, the Speaker.
Speaker (Designator: Speaker): This is the output device for the audio generated by the project.
Display (Designator: Display): This is probably used to display sequences and status info to the user. The datasheet URL indicates an Adafruit display, which most like uses an SPI interface to communicate with the Pico.
Micro Amp (Designator: MicroAmp): The Micro Amp might be used to further amplify the audio signal before it is sent to the speaker.

In summary, this project appears to be a musical instrument based on the Raspberry Pi Pico microcontroller, which generates and plays back sequences of sounds, with the capability for the user to input sequences using momentary step switches. The generated sequences are played back through a speaker.

Someone is typing...

VCC5v

PICO

SIPO_LATCH

ENCBtn

VCC5v

VCC3v3_LCD

ENCA

ENCB

SIPO_TX

VCC5v

SIPO_SCK

RESET

PWR 5v

please explain what B6 does.

nevetts

@copilot please explain what B6 does.

copilot

The

B6

component in your project is a momentary step switch with an integrated LED, similar to other buttons like

B1

B2

, etc., evoking the TR-808 synthesizer's style. Here are the functions of its pins:

Common (Pin 1): This is the common terminal for the switch, which connects to either the DefClosed or DefOpen pin based on whether the button is pressed or not.
DefClosed (Pin 2): This pin is shorted to the Common pin when the button is not pressed (default state).
DefOpen (Pin 3): This pin is shorted to the Common pin when the button is pressed.
LED - (Pin 4): This pin is the negative terminal for the integrated LED.
LED + (Pin 5): This pin is the positive terminal for the integrated LED.

In your current schematic, this button is used for step-switch functionality. The LED can be used for indicating button status or other visual feedback. It is wired as follows:

Common (Pin 1): Connected to $PICO:GPIO9$ to read button presses.
LED + (Pin 5): Connected to $R8:P2$ for controlling the LED.

The LED is likely used to provide visual feedback whenever the switch is engaged. If you have specific questions about its application, feel free to ask!

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Reviews

Electrical Rule Checks

Missing Footprints

Reports parts that have no footprint.

Design Rule Checks

Overlapping Copper • 118

Des	Net	Des	Net
Trace 6bfd	～RESET	RESET:1	None
Trace b147	～RESET	RESET:1	None
Trace 2dd1	B1 Common	B1:Common	None
Trace 5cb1	B2 Common	B2:Common	None
Trace 30bf	B6 Common	B6:Common	None
Trace 1a72	B7 Common	B7:Common	None
Trace 82fb	B7 Common	B7:Common	None
Trace 48eb	DAC BCLK	DAC AMP:BCLK	None
Trace 7f46	DAC LRC	DAC AMP:LRC	None
Trace 07e1	Encoder A	ENCODER:A	None
Trace 3ebf	Encoder B	ENCODER:B	None
Trace 80ad	LCD DC	Display:DC	None
Trace 0564	LCD MISO	PICO:GPIO12	None
Trace 0fd3	LCD SCK	Display:SCK	None
Trace 7cdf	LCD TCS	Display:TCS	None
Trace 5259	LED ShiftOut 0	SIPO1:Q0	None
Trace dc27	LED ShiftOut 0	SIPO1:Q0	None
Trace 223e	LED ShiftOut 1	R7:P1	None
Trace 3f89	LED ShiftOut 2	SIPO1:Q2	None
Trace 1797	LED ShiftOut 2	R2:P1	None
Trace dc58	LED ShiftOut 2	SIPO1:Q2	None
Trace 41e3	LED ShiftOut 3	R6:P1	None
Trace 949f	LED ShiftOut 3	SIPO1:Q3	None
Trace c2ed	LED ShiftOut 3	SIPO1:Q3	None
Trace ca3f	LED ShiftOut 4	SIPO1:Q4	None
Trace 08ab	LED ShiftOut 5	SIPO1:Q5	None
Trace cdd7	LED ShiftOut 6	SIPO1:Q6	None
Trace 04ae	LED ShiftOut 7	SIPO1:Q7	None
Trace 4fae	LED ShiftOut 7	SIPO1:Q7	None
Trace 9e4d	LED ShiftOut 7	SIPO1:Q7	None
Trace 9192	LED ShiftOut 7	R4:P1	None
Trace 7e20	R2-LED2+	R2:P2	None
Trace 62bd	R2-LED2+	B2:LED +	None
Trace 5730	R3-LED4+	R3:P2	None
Trace 9a42	R4-LED7+	B7:LED +	None
Trace 167b	R4-LED7+	R4:P2	None
Trace 2dc4	R5-LED5+	R5:P2	None
Trace 93a9	R6-LED3+	R6:P2	None
Trace 5724	R6-LED3+	B3:LED +	None
Trace 1fd6	R8-LED6+	B6:LED +	None
Trace 20c1	R9-LED8+	R9:P2	None
Trace d228	ShiftOut DS	SIPO1:DS	None
Trace 6e71	ShiftOut SH_CP	SIPO1:SH_CP	None
Trace ba76	ShiftOut SH_CP	SIPO1:SH_CP	None
Trace 5f55	ShiftOut ST_CP	SIPO1:ST_CP	None
Trace 345c	ShiftOut ST_CP	SIPO1:ST_CP	None
Trace 1a0d	Speaker NC 1	DAC AMP:S+	None
Trace 6225	Speaker NC 2	Speaker:S-	None
Trace 1ce2	VCC3v3_LCD	SIPO1:VCC	None
Trace 2a02	VCC3v3_LCD	SIPO1:VCC	None
Trace 133b	VCC3v3_LCD	SIPO1:～MR	None
Trace 5045	VCC3v3_LCD	SIPO1:VCC	None
Trace 49f7	VCC USB 5V	PWR 5v:P1	None
Trace 684e	VCC USB 5V	DAC AMP:Vin	None
Trace 7851	VCC USB 5V	Display:Vin	None
B0:Common	None	Trace 3836	B0 Common
B0:LED +	None	Trace 9848	R1-LED1+
B1:LED +	None	Trace b74b	R7-LED1+
B3:Common	None	Trace f60b	B3 Common
B4:Common	None	Trace 9aa3	B4 Common
B4:LED +	None	Trace c49b	R3-LED4+
B5:Common	None	Trace 12d3	B5 Common
B5:LED +	None	Trace 20d0	R5-LED5+
B8:Common	None	Trace d878	B8 Common
B8:LED +	None	Trace 8409	R9-LED8+
DAC AMP:DIN	None	Trace c561	DAC DIN
DAC AMP:S-	None	Trace 8c55	Speaker NC 2
Display:3V	None	Trace a576	VCC3v3_LCD
Display:MISO	None	Trace cff2	LCD MISO
Display:MOSI	None	Trace effa	LCD MOSI
Display:SDCS	None	Trace e99b	SD CS
Display:Vin	None	Trace abe7	VCC USB 5V
ENCODER:～	None	Trace b684	Encoder BTN
MicroAmp:GND	None	Trace e4f0	MIC Analog GND
MicroAmp:Out	None	Trace 8230	MIC Analog Out
MicroAmp:Vdd	None	Trace d5e5	VCC3v3_PI
PICO:3V3	None	Trace ec8b	VCC3v3_PI
PICO:AGND	None	Trace f960	MIC Analog GND
PICO:GPIO0	None	Trace fad8	DAC BCLK
PICO:GPIO1	None	Trace bb3f	DAC LRC
PICO:GPIO2	None	Trace 93d9	DAC DIN
PICO:GPIO3	None	Trace bf58	B0 Common
PICO:GPIO4	None	Trace c76f	B1 Common
PICO:GPIO5	None	Trace 25c4	B2 Common
PICO:GPIO6	None	Trace 8131	B3 Common
PICO:GPIO7	None	Trace 2fce	B4 Common
PICO:GPIO8	None	Trace b6f5	B5 Common
PICO:GPIO9	None	Trace 1ab4	B6 Common
PICO:GPIO10	None	Trace b0e5	B7 Common
PICO:GPIO11	None	Trace f6ca	LCD DC
PICO:GPIO13	None	Trace 6fd4	LCD TCS
PICO:GPIO14	None	Trace f54c	LCD SCK
PICO:GPIO15	None	Trace 6fa9	LCD MOSI
PICO:GPIO16	None	Trace d1a5	B8 Common
PICO:GPIO17	None	Trace 74c9	SD CS
PICO:GPIO18	None	Trace a9ea	ShiftOut SH_CP
PICO:GPIO19	None	Trace 5670	ShiftOut DS
PICO:GPIO20	None	Trace 3193	ShiftOut ST_CP
PICO:GPIO21	None	Trace a68f	R9-LED8+
PICO:GPIO22	None	Trace ba9c	Encoder BTN
PICO:GPIO26_ADC0	None	Trace 679a	MIC Analog Out
PICO:GPIO27_ADC1	None	Trace 4ef4	Encoder B
PICO:GPIO28_ADC2	None	Trace 30cd	Encoder A
PICO:RUN	None	Trace df71	～RESET
PICO:VBUS	None	Trace c6bd	VCC USB 5V
R1:P1	None	Trace d686	LED ShiftOut 0
R1:P2	None	Trace 6ddf	R1-LED1+
R3:P1	None	Trace ab8e	LED ShiftOut 4
R5:P1	None	Trace c381	LED ShiftOut 5
R7:P1	None	Trace cfd3	LED ShiftOut 1
R7:P2	None	Trace c913	R7-LED1+
R8:P1	None	Trace b8ce	LED ShiftOut 6
R8:P2	None	Trace 8e79	R8-LED6+
R9:P1	None	Trace c6aa	R9-LED8+
SIPO1:Q1	None	Trace de98	LED ShiftOut 1
SIPO1:Q4	None	Trace e657	LED ShiftOut 4
Speaker:S-	None	Trace f4d8	Speaker NC 2
Speaker:S+	None	Trace afd4	Speaker NC 1

Invalid Layer

Reports nodes that are assigned to a layer that doesn't exist in the layout stackup.

Component Overrides • 3

	Designator	Ruleset
	Display:Pad	LCD M2
	Display:Pad	LCD M1
	Pads	Force pico TH

Airwires

Reports missing routed traces between pads in a net.

Deprecated Rules

Reports nodes that are using rules that are not supported anymore.

Layers with Multiple Fills

Reports layers that have multiple copper fills of different nets. Make sure the Connected Layers rule value of nets with fills is valid.

Floating Copper • 29

	Name
	Via
	Via
	Via
	Via
	Trace 5103
	Via
	Via
	Via
	Via
	Via
	Via
	Via
	Via
	Via
	Via
	Via
	Via
	Via
	Via
	Via
	Via
	Via
	Via
	Via
	Via
	Via
	Via
	Via
	Via

Protected Intrusions

Reports intrusions from objects of other nets into polygons or fills that have the Protected layout rule applied.

Manufacturing

Manufacturer Part Number • 29

	Designator	MPN
	M3 Mounting Hole	None
	M3 Mounting Hole	None
	FLUX VECTOR PCB V2	None
	M3 Mounting Hole	None
	M3 Mounting Hole	None
	B0	None
	B1	None
	B2	None
	B3	None
	B4	None
	B5	None
	B6	None
	B7	None
	B8	None
	DAC AMP	None
	Display	None
	MicroAmp	None
	PWR 5v	None
	R1	None
	R2	None
	R3	None
	R4	None
	R5	None
	R6	None
	R7	None
	R8	None
	R9	None
	RESET	None
	Speaker	None

Parts Available

Beta

Checks that all parts have a part number and are available from distributors.

System Checks

Auto-Layout

Beta

Reports issues with Auto-Layout if Flux cannot route something or must ignore a configuration.

Passive Components

Resistor Power Rating

Beta

Checks that the power traveling across a given resistor is under its rating with 50% headroom.

Learn more

Pull Up/Pull Down Presence

Beta

Checks that IC pins that require pull up or pull down resistors have them.

Learn more

Capacitor Voltage Rating

Beta

Checks that capacitors have appropriate voltage ratings to prevent overheating and ensure reliable circuit operation.

Ground
A common return path for electric current. Commonly known as ground.
jharwinbarrozo
20.5M
Net Portal
Wirelessly connects nets on schematic. Used to organize schematics and separate functional blocks. To wirelessly connect net portals, give them same designator. #portal
jharwinbarrozo
43.0M
Power Net Portal
Wirelessly connects power nets on schematic. Identical to the net portal, but with a power symbol. Used to organize schematics and separate functional blocks. To wirelessly connect power net portals, give them the same designator. #portal #power
jharwinbarrozo
11.4M
Generic Resistor
A generic fixed resistor for rapid developing circuit topology. Save precious design time by seamlessly add more information to this part (value, footprint, etc.) as it becomes available. Standard resistor values: 1.0Ω 10Ω 100Ω 1.0kΩ 10kΩ 100kΩ 1.0MΩ 1.1Ω 11Ω 110Ω 1.1kΩ 11kΩ 110kΩ 1.1MΩ 1.2Ω 12Ω 120Ω 1.2kΩ 12kΩ 120kΩ 1.2MΩ 1.3Ω 13Ω 130Ω 1.3kΩ 13kΩ 130kΩ 1.3MΩ 1.5Ω 15Ω 150Ω 1.5kΩ 15kΩ 150kΩ 1.5MΩ 1.6Ω 16Ω 160Ω 1.6kΩ 16kΩ 160kΩ 1.6MΩ 1.8Ω 18Ω 180Ω 1.8KΩ 18kΩ 180kΩ 1.8MΩ 2.0Ω 20Ω 200Ω 2.0kΩ 20kΩ 200kΩ 2.0MΩ 2.2Ω 22Ω 220Ω 2.2kΩ 22kΩ 220kΩ 2.2MΩ 2.4Ω 24Ω 240Ω 2.4kΩ 24kΩ 240kΩ 2.4MΩ 2.7Ω 27Ω 270Ω 2.7kΩ 27kΩ 270kΩ 2.7MΩ 3.0Ω 30Ω 300Ω 3.0KΩ 30KΩ 300KΩ 3.0MΩ 3.3Ω 33Ω 330Ω 3.3kΩ 33kΩ 330kΩ 3.3MΩ 3.6Ω 36Ω 360Ω 3.6kΩ 36kΩ 360kΩ 3.6MΩ 3.9Ω 39Ω 390Ω 3.9kΩ 39kΩ 390kΩ 3.9MΩ 4.3Ω 43Ω 430Ω 4.3kΩ 43KΩ 430KΩ 4.3MΩ 4.7Ω 47Ω 470Ω 4.7kΩ 47kΩ 470kΩ 4.7MΩ 5.1Ω 51Ω 510Ω 5.1kΩ 51kΩ 510kΩ 5.1MΩ 5.6Ω 56Ω 560Ω 5.6kΩ 56kΩ 560kΩ 5.6MΩ 6.2Ω 62Ω 620Ω 6.2kΩ 62KΩ 620KΩ 6.2MΩ 6.8Ω 68Ω 680Ω 6.8kΩ 68kΩ 680kΩ 6.8MΩ 7.5Ω 75Ω 750Ω 7.5kΩ 75kΩ 750kΩ 7.5MΩ 8.2Ω 82Ω 820Ω 8.2kΩ 82kΩ 820kΩ 8.2MΩ 9.1Ω 91Ω 910Ω 9.1kΩ 91kΩ 910kΩ 9.1MΩ #generics #CommonPartsLibrary
jharwinbarrozo
1.5M
Generic Capacitor
A generic fixed capacitor ideal for rapid circuit topology development. You can choose between polarized and non-polarized types, its symbol and the footprint will automatically adapt based on your selection. Supported options include standard SMD sizes for ceramic capacitors (e.g., 0402, 0603, 0805), SMD sizes for aluminum electrolytic capacitors, and through-hole footprints for polarized capacitors. Save precious design time by seamlessly add more information to this part (value, footprint, etc.) as it becomes available. Standard capacitor values: 1.0pF 10pF 100pF 1000pF 0.01uF 0.1uF 1.0uF 10uF 100uF 1000uF 10,000uF 1.1pF 11pF 110pF 1100pF 1.2pF 12pF 120pF 1200pF 1.3pF 13pF 130pF 1300pF 1.5pF 15pF 150pF 1500pF 0.015uF 0.15uF 1.5uF 15uF 150uF 1500uF 1.6pF 16pF 160pF 1600pF 1.8pF 18pF 180pF 1800pF 2.0pF 20pF 200pF 2000pF 2.2pF 22pF 20pF 2200pF 0.022uF 0.22uF 2.2uF 22uF 220uF 2200uF 2.4pF 24pF 240pF 2400pF 2.7pF 27pF 270pF 2700pF 3.0pF 30pF 300pF 3000pF 3.3pF 33pF 330pF 3300pF 0.033uF 0.33uF 3.3uF 33uF 330uF 3300uF 3.6pF 36pF 360pF 3600pF 3.9pF 39pF 390pF 3900pF 4.3pF 43pF 430pF 4300pF 4.7pF 47pF 470pF 4700pF 0.047uF 0.47uF 4.7uF 47uF 470uF 4700uF 5.1pF 51pF 510pF 5100pF 5.6pF 56pF 560pF 5600pF 6.2pF 62pF 620pF 6200pF 6.8pF 68pF 680pF 6800pF 0.068uF 0.68uF 6.8uF 68uF 680uF 6800uF 7.5pF 75pF 750pF 7500pF 8.2pF 82pF 820pF 8200pF 9.1pF 91pF 910pF 9100pF #generics #CommonPartsLibrary
jharwinbarrozo
1.5M
Generic Inductor
A generic fixed inductor for rapid developing circuit topology. *You can now change the footprint and 3D model at the top level anytime you want. This is the power of #generics
jharwinbarrozo
15.1k
Terminal
An electrical connector acting as reusable interface to a conductor and creating a point where external circuits can be connected.
natarius
RMCF0805JT47K0
47 kOhms ±5% 0.125W, 1/8W Chip Resistor 0805 (2012 Metric) Automotive AEC-Q200 Thick Film #forLedBlink
jharwinbarrozo
1.2M
875105359001
10uF Capacitor Aluminum Polymer 20% 16V SMD 5x5.3mm #forLedBlink #commonpartslibrary #capacitor #aluminumpolymer #radialcan
jharwinbarrozo
1.2M
CTL1206FYW1T
Yellow 595nm LED Indication - Discrete 1.7V 1206 (3216 Metric) #forLedBlink
jharwinbarrozo
1.1M

Inspect

PiStrument

Controls

Properties

Availability & Pricing

Distributor		Qty 1
	Digi-Key	$3.30
	LCSC	$9.93
	Mouser	$3.27

Assets

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IMG_1313.jpeg

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