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how much voltage does it accept a digital pin in the esp32 devkit?

juan2704

@copilot how much voltage does it accept a digital pin in the esp32 devkit?

copilot

The ESP32 development board, represented in your project by the Heltec WiFi LoRa 32 (V2) under the designator U1, typically operates at a 3.3V logic level for its digital pins. This means the recommended maximum voltage for a digital pin is 3.3V. Applying a voltage higher than 3.3V to a digital IO pin risks damaging the ESP32 IC.

Someone is typing...

how would you make a lm393 delay pull up resistor circuit

juan2704

@copilot how would you make a lm393 delay pull up resistor circuit

copilot

To create a delay circuit using an LM393 comparator and incorporate a pull-up resistor, you would generally be looking at a setup where the comparator is used to trigger a delay to a stable output state. The LM393 is a dual differential comparator, which could be utilized in configuring a simple delay circuit, especially when combined with an RC timing network. Here’s a basic approach:

Components Needed:

LM393 Comparator (assuming we use U4 from your project): This IC has two comparators; you can use one for the delay circuit.
Resistor (R): This will be part of the RC delay network. Let's assume a value of 10kΩ (R16, for demonstration purposes).
Capacitor (C): This, combined with the resistor, will create the RC time constant for your delay. Assuming a value of 100µF (C10, for example).
Pull-up Resistor (R_pullup): This resistor is needed to pull the output to a high level when the comparator’s output is in the high impedance state. Let's assume a value of 10kΩ (R17).

Circuit Connections:

Set Up the RC Network for Delay:
- Connect one end of R16 to U4:2IN- and the other end to the junction of C10:P1 and C10:P2 (where P2 is also connected to ground).
- Connect U4:2IN+ to a reference voltage (V_ref) that the input voltage (Vin) will be compared against. V_ref can be set using a voltage divider or a reference voltage source.
Pull-up Resistor:
- Connect R17:1 to U4:2OUT and R17:2 to your positive supply voltage (let's assume you're using 5V from your project).
Output:
- Directly take the output from the junction of U4:2OUT and R17:1. This node goes to the input of the following stage after the delay.
Input and Ground Connections:
- Vin should be applied to the RC network (R16:C10 junction).
- Ensure U4:GND (pin 4) is connected to your system ground.
- VCC of U4 (pin 8) should be connected to the same positive supply voltage as R17:2 (assumed to be 5V).

How It Works:

When Vin rises above V_ref, the comparator output becomes open circuit (since LM393 outputs are open collector), and R17 pulls the output high.
The RC network dictates how quickly the voltage at U4:2IN- rises, creating a delay before the output transitions states. The time delay (τ) can be approximated by the formula τ = R×C, where τ is in seconds if R is in ohms and C in farads.
As Vin falls below V_ref, the comparator drives the output low, overcoming the pull-up resistor.

Assumptions and Corrections:

I assumed you have a 5V supply available in your project for the pull-up resistor and that the general purpose of the circuit is to introduce a delay based on an input voltage exceeding a reference voltage.
Values for R16 (10kΩ), C10 (100µF), and R17 (10kΩ) are placeholders. Based on your delay requirement, adjust R and C values accordingly. Smaller R/C values result in a shorter delay and vice versa.

If you need adjustments or have different requirements for the delay (such as a specific delay time or operating voltage), feel free to specify!

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how would you make a negative dc offset to this amplifier

rozelle.plum.r2d2251365

@copilot how would you make a negative dc offset to this amplifier

Someone is typing...

which lora version has the sx1276 semtech lora transceiver

juan2704

@copilot which lora version has the sx1276 semtech lora transceiver

copilot

The Semtech SX1276 LoRa transceiver is often associated with the LoRaWAN protocol version 1.0.2. However, you should check with your module or transceiver's datasheet or manufacturer's specification to confirm the specific version and compatibility.

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tell me the difference between the hex inverter 74ls04 and the 74HC14D

juan2704

@copilot tell me the difference between the hex inverter 74ls04 and the 74HC14D

copilot

Sure, both 74LS04 and 74HC14D are popularly used as logic inverters (also known as NOT gates), and they are a part of the 74-series logic gate ICs. However, there are significant differences between the two. Here they are:

Technology:
- The 74LS04 is a part of the Low-power Schottky (LS) family, which is a bipolar technology.
- The 74HC14D is a part of the High-speed CMOS (HC) family, which as the name implies is based on CMOS technology.
Input and Output Levels:
- The 74LS04, being based on LS technology, has a lower noise margin and a narrower range of acceptable input and output logic levels.
- Being a CMOS device, the 74HC14D has better noise immunity and a wider range for input and output logic levels.
Schmitt Trigger Feature:
- The "14" in 74HC14D indicates that it has a Schmitt trigger input, which provides hysteresis and allows the chip to smooth out the signal, making it more resistant to noise and ringing.
- The 74LS04 is just a plain inverter and does not have Schmitt trigger inputs.
Number of Gates:
- Both 74LS04 and 74HC14D contain six separate inverters.
Speed:
- The propagation delay time (a measure of speed) differs as well. The 74LS04 typically operates a bit slower than the 74HC14D.
Power Consumption:
- The 74HC14D, being a CMOS device, will consume much less power than the 74LS04 when not switching. The 74LS04 will consume more power, especially when switching frequently.

Overall, you'd want to use the 74HC14D if you need its Schmitt trigger capabilities (for example, to clean up a noisy signal), if you need its CMOS-level logic, or if low static power consumption is important. You might use the older 74LS04 if speed is not as critical, or if you need to interface with other LS-series parts.

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What are some 74HC14D alternatives? because i just need one digital input, i am ...

juan2704

@copilot What are some 74HC14D alternatives? because i just need one digital input, i am not going to use all pins

copilot

Sure. The SN74AHC14QPWRQ1 you're using is a hex inverting Schmitt trigger, meaning it contains 6 individual inverting Schmitt triggers in a single package. If you're only in need of a single-channel device, you could use one of the following alternatives:

74HC1G14GW: It is a single gate, single input Schmitt trigger inverter made by NXP Semiconductors.
SN74LVC1G14DBVR: This Texas Instruments chip is also a single-gate Schmitt trigger inverter, with similar properties to the 74HC14.

Both alternatives are widely available and have similar electrical characteristics to the 74HC14D. Make sure to verify the specifications and packages for your specific use case.

However, please also keep in mind that even if you are not using all the pins on the SN74AHC14QPWRQ1, there is no harm in using it. It might be more economical or practical depending on available components and PCB space.

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How much voltage does the AC172 drops when connected to a 1A circtuit?

juan2704

@copilot How much voltage does the AC172 drops when connected to a 1A circtuit?

copilot

I'm sorry, but I couldn't find an AC172 component in the project description you provided. Could you please confirm whether this component is present in your project? Moreover, AC172 seems to be a transistor rather than a voltage-dependent component. Usually, voltage drop is associated with components like resistors or diodes. Are you sure you want to know the voltage drop across AC172 or is there another specific component you're referring to?

Please provide more context so that I can assist you better.

juan2704

sorry it was the AC712, a current sensor that would allow me to sense current through a cable using a hall effect, i want to implement it in my project but i was wondering how much voltage drops so i cause the minimum effect on the circuit where i would place the sensor

copilot

The AC712, more commonly referred to as ACS712, is a fully integrated, Hall effect-based linear current sensor IC from Allegro MicroSystems. It is very popular for its precision and sensitivity.

It's important to note that the ACS712 is a current sensor module, not something like a resistor that would introduce a voltage drop in your circuit. It's designed to cause minimal disruption to the circuit that it's measuring.

The ACS712 operates on the basis of the Hall effect, measuring both AC and DC currents. The sensor does not have to be in direct contact with any part of the circuit. Instead, the electrical current that the sensor measures generates a magnetic field, which the sensor then measures to determine the current.

These types of sensors generally have a very low resistance (a few milliohms), hence they introduce a very small voltage drop in the circuit they are measuring, typically in the millivolt range.

Before using it in your project, it's crucial to verify this with the specific datasheet of your model since there are different versions of the ACS712 sensor with different current measuring capabilities (5A, 20A, 30A).

Additionally, remember that to get accurate readings, you would need to tune the sensor properly based on the control voltage given out by the ACS712 for zero current flow.

juan2704

explain to me the last part, how do i tune the sensor?

copilot

The ACS712 provides a analog voltage output that can be read by an analog-to-digital converter (ADC) channel on a microcontroller. This analog output voltage is proportional to the current flowing through the sensor.

When no current is passing through the sensor (known as the "zero current" condition), the sensor doesn't output a zero voltage. Instead, it outputs a mid-point voltage also called "Zero Current Output Voltage" ((V_{OUT(Q)})) which for ACS712 is typically around 2.5V. The output voltage then rises or falls proportionally around this "Zero Current Output Voltage" as the sensed current increases or decreases.

During the setup of the sensor in your circuit, you'll want to "tune" or "calibrate" your microcontroller's readings to know what output voltage of the sensor corresponds to zero current. This is usually done by reading the value of (V_{OUT(Q)}) from the sensor at powerup (when you are certain no current is flowing through the sensor), and storing that value as the "zero current" point. Once you've done this, the microcontroller can calculate the actual current by comparing future readings from the sensor to this calibrated zero point.

Remember that the ADC reading from the sensor will have to be scaled to the microcontroller's ADC resolution and reference voltage. For instance, if you are using a 10-bit ADC with 5V reference, then each bit is equivalent to ( \frac{5V}{2^{10}-1} \approx 4.89mV ). So, a zero current reading of 2.5V by the sensor would correspond to approximately 512bit on the ADC reading. This is the value that one would consider the zero-current point when calculating actual current from the sensor output.

There can be some variability due to factors like power supply voltage variation, component tolerances etc., so it's recommended to calibrate the sensor in the actual conditions in which the sensor will be used. Calibration should also be rechecked periodically, as the zero-point can sometimes drift over time.

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can you tell me if this connection is alright for a operational apmplifier

gaby27

@copilot can you tell me if this connection is alright for a operational apmplifier

copilot

For evaluating the connectivity of an operational amplifier (op-amp), typically, we look at how the inputs, outputs, power supply, and any feedback mechanisms are connected. However, you haven't specified which connection in your project you're referring to. Given the project details, I see that there's an LM358P op-amp designated as U2 with various pin assignments.

For a general overview, the LM358P is a dual operational amplifier. Here are some common practices for connecting such an op-amp in a circuit:

Power Supply:
- Connect U2:4 (V-) to a ground reference.
- Connect U2:8 (V+) to a positive power supply. This can be a voltage within the range that the op-amp supports, typically 3V to 32V. In your schematic, this is probably connected to the VIN or 5V net for operation.

Based on the net connections provided in your project:

U2:8 (V+) is part of the net tagged c791f3e3fe4e1370fae9b8ddf5c1a714, which is indeed connected to 5V and VIN, confirming that the power supply connection is correctly made to the op-amp.
U2:4 (V-) is part of the net tagged 9632690c6cd6203abf7c1d9cd477fbcf, which needs to be connected to a ground reference for correct operation. Ensure this net connects to a ground in your project.
Input and Output Connections:
- For a simple op-amp configuration (e.g., non-inverting amplifier), you would connect your input signal to U2:+IN1 (3), use U2:-IN1 (2) to set up feedback (often involving resistors to ground and back to this pin), and take your output from U2:OUT1 (1).

Without specific details on which connection you're referring to, I've made assumptions based on standard op-amp usage and your provided project description. If there's a specific connection you're unsure about, could you provide more details? For example, are you looking into creating a specific type of amplifier (e.g., non-inverting, inverting, differential)? This will help in providing a more tailored response.

gaby27

im tring to make an inversor amplifier wiht 100 of gain for a hall current sensor

copilot

For an inverting amplifier configuration using your LM358P op-amp (U2) with a gain of -100 for interfacing with a Hall current sensor, you need two resistors. The gain of an inverting amplifier is given by the formula

\text{Gain} = -\frac{R_f}{R_{in}}

where:

(R_f) is the feedback resistor connected from the op-amp's output to its inverting input.
(R_{in}) is the input resistor connected from the inverting input to the signal source.

Given that you want a gain of -100, you could choose a 100kΩ resistor for (R_f) and a 1kΩ resistor for (R_{in}). These values are quite typical and should be easily available. Let's assume R13 (100kΩ) could act as your (R_f) and R11 (1kΩ) as your (R_{in}) based on the components listed in your project description.

Assuming U2:+IN2 is not used and connected to ground through a resistor to set the bias correctly (this could be a typical connection setup not specified but is recommended for unused op-amp units to ensure stability).

Steps to Configure U2 as an Inverting Amplifier:

Input Connections:
- Connect the output of the Hall current sensor (let's assume it outputs its measurement through a designated net, say SCT1:P1) to R11:P1.
- Connect R11:P2 to U2:-IN1.
Feedback Connections:
- Connect R13:P1 to U2:OUT1.
- Connect R13:P2 to U2:-IN1.
Grounding and Power Supply:
- Ensure U2:+IN1 is connected to ground to properly bias the unused op-amp unit (if not using dual characteristics). This can be through a typical value resistor, say a 10kΩ, to ground but it's not expressly listed in your items.
- Connect U2:V- to GND.
- Connect U2:V+ to a suitable positive power supply, e.g., 5V from your power net designation.
Output:
- The output of your inverting amplifier will be available at U2:OUT1.
Unused Op-Amp Configuration (for LM358P which is a dual op-amp):
- It's a good practice to configure the unused op-amp in a stable configuration to avoid oscillation or interference.
- For the LM358P's unused section (+IN2 and -IN2), connect +IN2 to ground and OUT2 directly to -IN2 which sets it as a voltage follower that won’t oscillate.

Given your existing components:

Connect SCT1:P1 to R11:P1.
Connect R11:P2 to U2:-IN1, R13:P2.
Connect R13:P1 to U2:OUT1.

Keep in mind, the actual connection to SCT1:P1 or the Hall sensor's output pin might need to be adjusted based on your specific sensor and its wiring situation in your schematic. Also, ensure the feedback and input resistors meet the precise requirements (in value and tolerance) needed for your application to achieve the desired gain accurately.

Someone is typing...

3.3V

Resistance

1k Ω

Capacitance

470u F

VIN

Capacitance

0.1u F

ADC 2

R11

Resistance

1k Ω

ADC 1

VIN

Capacitance

0.1u F

ADC 3

J14

ADC

Capacitance

470u F

3.3V

Resistance

5k Ω

3.3V

Reviews

Design Rule Checks

Overlapping Copper • 189

Des	Net	Des	Net
C2:P1	GND	Trace fc06	Net 20
C4:P2	GND	Trace aa64	Net 17
C6:P2	GND	Trace da5f	Net 20
C6:P2	GND	Trace e563	Net 20
C8:P2	GND	Trace e186	Net 17
Q1:～	GND	Trace b647	Net 17
R5:P2	GND	Trace 5e9a	Net 17
R5:P2	GND	Trace 50fa	Net 17
R5:P2	GND	Trace bb65	Net 17
R5:P2	GND	Trace cf68	Net 17
R5:P2	GND	Pad:Pad	None
R14:P2	GND	Trace b1e8	Net 17
R14:P2	GND	Trace ddcb	Net 17
R14:P2	GND	Pad:Pad	None
Trace 2807	GND	C7:P1	Net 7
Trace 2807	GND	Trace dbd7	Net 7
U3:GND	GND	Trace f2fa	Net 17
Trace 1bf0	Net 1	J14:Pin_6	None
Trace 5dc2	Net 1	J14:Pin_3	None
Trace 9dcf	Net 1	J14:Pin_3	None
Trace 17de	Net 1	J14:Pin_4	None
Trace 357a	Net 1	J14:Pin_6	None
Trace 623c	Net 1	U1:38	None
Trace 623c	Net 1	U1:Pin_6	None
Trace 751f	Net 1	Trace 81b0	Net 17
Trace 751f	Net 1	Trace 894f	Net 17
Trace 751f	Net 1	Trace 8319	Net 17
Trace 938f	Net 1	J14:Pin_2	None
Trace 2231	Net 1	U1:Pin_4	None
Trace 5075	Net 1	J14:Pin_5	None
Trace a6e1	Net 1	J14:Pin_1	None
C8:P1	Net 3	Trace d9f7	Net 33
D5:K	Net 3	Trace d9f7	Net 33
R14:P1	Net 3	Trace fa74	Net 23
Trace 6dc7	Net 3	U2:NON-INVERTING_INPUT2	None
Trace 16b6	Net 3	Trace 3896	Net 33
Trace 16b6	Net 3	Trace d9f7	Net 33
Trace 24fa	Net 3	Trace 3896	Net 33
Trace 24fa	Net 3	Trace d9f7	Net 33
Trace 3d78	Net 10	U2:NON-INVERTING_INPUT_3	None
Trace 6fd9	Net 10	Trace f851	Net 17
Trace 027c	Net 10	U2:INVERTING_INPUT3	None
Trace 678c	Net 10	R18:2	None
Trace 1a53	Net 13	U1:32	None
Trace 1a53	Net 13	U1:Pin_10	None
Trace 1b4b	Net 13	U1:33	None
Trace 1b4b	Net 13	U1:Pin_11	None
Trace 186e	Net 13	U1:32	None
Trace 186e	Net 13	U1:Pin_10	None
R9:P2	Net 14	Trace 5198	Net 27
C7:P2	Net 16	Trace dd91	Net 7
C1:P1	Net 17	Trace feae	Net 7
Trace 0e9e	Net 17	Trace da21	Net 10
Trace 0e9e	Net 17	U2:VCC-	None
Trace 3d3a	Net 17	C8:P2	GND
Trace 3d3a	Net 17	Pad:Pad	None
Trace 3f99	Net 17	R6:P1	None
Trace 3ff6	Net 17	Trace 751f	Net 1
Trace 3ff6	Net 17	U1:GND	None
Trace 3ff6	Net 17	U1:Pin_1	None
Trace 4cc4	Net 17	Q2:～	GND
Trace 5e9a	Net 17	Pad:Pad	None
Trace 5e9a	Net 17	R6:P2	None
Trace 27ec	Net 17	Trace 751f	Net 1
Trace 27ec	Net 17	U1:GND	None
Trace 27ec	Net 17	U1:Pin_1	None
Trace 39b9	Net 17	R18:3	GND
Trace 50fa	Net 17	Pad:Pad	None
Trace 61ab	Net 17	Trace 751f	Net 1
Trace 61ab	Net 17	U1:GND	None
Trace 61ab	Net 17	U1:Pin_1	None
Trace 66c3	Net 17	R4:P2	None
Trace 68cd	Net 17	Q2:～	GND
Trace 71d6	Net 17	Q2:～	GND
Trace 96e7	Net 17	C8:P2	GND
Trace 203a	Net 17	Trace 751f	Net 1
Trace 203a	Net 17	U1:GND	None
Trace 203a	Net 17	U1:Pin_1	None
Trace 278f	Net 17	R4:P2	None
Trace 334d	Net 17	Q2:～	GND
Trace 444c	Net 17	R6:P2	None
Trace 676d	Net 17	Trace 79ef	Net 10
Trace 797a	Net 17	R4:P1	None
Trace 1795	Net 17	U3:GND	GND
Trace 2839	Net 17	D2:A	None
Trace 5145	Net 17	Trace feae	Net 7
Trace 6188	Net 17	U1:GND	None
Trace 6188	Net 17	U1:Pin_1	None
Trace a981	Net 17	R6:P2	None
Trace 8027	Net 18	U2:OUTPUT3	None
Trace 1e4d	Net 20	C2:P1	GND
Trace 2d35	Net 20	C2:P1	GND
Trace 17d0	Net 20	Trace 569c	Net 26
Trace 727b	Net 20	U1:Pin_2	None
Trace ad7e	Net 20	R3:P2	Net 7
Trace e178	Net 20	Trace f2fa	Net 17
U1:5V	Net 20	U1:Pin_2	None
U2:NON-INVERTING_INPUT_1	Net 22	Trace abc0	Net 33
Trace 004f	Net 23	Trace 576a	Net 26
R8:P1	Net 26	Trace e8c3	Net 18
Trace 1f8a	Net 26	R18:1	Net 23
Trace 1f8a	Net 26	Trace f28c	Net 23
Trace 1fcc	Net 26	Trace 4bd1	Net 23
Trace 1fcc	Net 26	Trace f28c	Net 23
Trace 5fd3	Net 26	R8:P2	Net 30
Trace 6db1	Net 26	Trace e8c3	Net 18
Trace 9e25	Net 26	R8:P2	Net 30
Trace 33bb	Net 26	U1:3V3	None
Trace 33bb	Net 26	U1:Pin_2	None
Trace 310d	Net 26	Trace 38c4	Net 23
Trace 472d	Net 26	R18:1	Net 23
Trace 472d	Net 26	Trace f28c	Net 23
Trace 858a	Net 26	R8:P2	Net 30
Trace 2309	Net 26	U1:13	None
Trace 2309	Net 26	U1:Pin_17	None
R9:P1	Net 27	Trace 56e0	Net 14
R9:P1	Net 27	Trace a494	Net 14
R9:P1	Net 27	Trace fb9e	Net 14
D3:K	Net 28	Trace 7dbf	Net 14
D3:K	Net 28	Trace c8ea	Net 14
D3:K	Net 28	Trace dd36	Net 14
Trace 2a13	Net 28	D3:A	Net 15
Trace 092b	Net 29	U2:OUTPUT1	None
R8:P2	Net 30	Trace fda5	Net 26
Trace 4ebc	Net 31	U2:OUTPUT4	None
D7:K	Net 33	Trace fa74	Net 23
Trace 0e49	Net 33	Trace fa74	Net 23
Trace 6d30	Net 33	C8:P1	Net 3
Trace 8b44	Net 33	Trace fa74	Net 23
Trace 3896	Net 33	D5:K	Net 3
Trace 7954	Net 33	C8:P1	Net 3
Trace bb69	Net 33	Trace fa74	Net 23
Trace c3d2	Net 33	Trace fa74	Net 23
Trace e3fe	Net 33	Trace fa74	Net 23
D2:A	None	Trace 8b22	Net 17
J6:Pin_1	None	Trace 7030	Net 17
J6:Pin_1	None	Trace e72d	Net 17
J6:Pin_2	None	Trace 3f99	Net 17
J6:Pin_3	None	Trace 41ff	Net 17
J6:Pin_3	None	Trace a29d	Net 17
J6:Pin_4	None	Trace 797a	Net 17
J6:Pin_4	None	Trace 8917	Net 17
J6:Pin_4	None	Trace a729	Net 17
J8:P2	None	Trace a494	Net 14
J14:Pin_1	None	Trace d495	Net 1
J14:Pin_2	None	Trace ed62	Net 1
J14:Pin_2	None	Trace fa24	Net 1
J14:Pin_2	None	Trace ff99	Net 1
J14:Pin_4	None	Trace f231	Net 1
J14:Pin_5	None	Trace c213	Net 1
J14:Pin_6	None	Trace d438	Net 1
Pad:Pad	None	C4:P2	GND
Pad:Pad	None	C8:P2	GND
Pad:Pad	None	C8:P1	Net 3
Pad:Pad	None	Trace 96e7	Net 17
Pad:Pad	None	Trace aa64	Net 17
Pad:Pad	None	Trace b1e8	Net 17
Pad:Pad	None	Trace bb65	Net 17
Pad:Pad	None	Trace cf68	Net 17
Pad:Pad	None	Trace ddcb	Net 17
Pad:Pad	None	Trace e186	Net 17
Pad:Pad	None	Trace 6d30	Net 33
Pad:Pad	None	Trace 7954	Net 33
Pad:Pad	None	Trace d9f7	Net 33
R4:P1	None	Trace a729	Net 17
U1:12	None	Trace a0ea	Net 29
U1:37	None	Trace eb9e	Net 1
U1:GND	None	Trace 81b0	Net 17
U1:GND	None	Trace 894f	Net 17
U1:GND	None	Trace 8319	Net 17
U1:GND	None	Trace b69b	Net 20
U1:Pin_1	None	Trace 81b0	Net 17
U1:Pin_1	None	Trace 894f	Net 17
U1:Pin_1	None	Trace 8319	Net 17
U1:Pin_1	None	Trace b69b	Net 20
U1:Pin_2	None	U1:3V3	Net 26
U1:Pin_4	None	U1:36	Net 1
U1:Pin_5	None	Trace eb9e	Net 1
U1:Pin_7	None	U1:39	Net 8
U1:Pin_8	None	U1:34	Net 12
U1:Pin_9	None	U1:35	Net 21
U1:Pin_16	None	Trace a0ea	Net 29
U2:INVERTING_INPUT1	None	Trace 95a3	Net 10
U2:INVERTING_INPUT2	None	Trace b12b	Net 10
U2:INVERTING_INPUT2	None	Trace eae7	Net 10
U2:NON-INVERTING_INPUT4	None	Trace dfb2	Net 10
U2:OUTPUT3	None	Trace ad4d	Net 18
U2:VCC-	None	Trace da21	Net 10
U2:VCC+	None	Trace d462	Net 26

Invalid Layer

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

Component Overrides • 3

	Designator	Ruleset
	＊`REF`＊	Override rule for ＊`REF`＊
	＊`REF`＊	Override rule for ＊`REF`＊
	＊`REF`＊	Override rule for ＊`REF`＊

Airwires • 15

	Designators	Net
	C4:P2, Via-5-2:Via-5-2	GND
	C8:P1, Trace 24fa:Trace 24fa	Net 3
	R14:P1, Trace 58a0:Trace 58a0	Net 3
	Trace dd91:Trace dd91, Trace dbd7:Trace dbd7	Net 7
	U3:IN, R3:P2	Net 7
	Trace 1a53:Trace 1a53, Trace 1b4b:Trace 1b4b	Net 13
	R9:P2, Trace c8ea:Trace c8ea	Net 14
	Trace ad4d:Trace ad4d, U2:OUTPUT2	Net 18
	Trace 8b3f:Trace 8b3f, Trace b09f:Trace b09f	Net 20
	Trace 68ac:Trace 68ac, Trace f28c:Trace f28c	Net 23
	Trace 9e25:Trace 9e25, Trace 5fd3:Trace 5fd3	Net 26
	Trace fda5:Trace fda5, R8:P1	Net 26
	R9:P1, Trace 5198:Trace 5198	Net 27
	D3:K, Trace 2a13:Trace 2a13	Net 28
	Trace 3896:Trace 3896, Trace 0e49:Trace 0e49	Net 33

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 • 16

	Name
	Via
	Via
	Via
	Via
	Trace fa74
	Trace 2807
	Trace abc0
	Trace 1c0e
	Trace 2048
	Trace e178, Trace e563
	Trace 5198
	Trace f2fa
	Trace e8c3
	Trace 1fcc, Trace 41c3, Trace 569c
	Trace 32f2, Trace 7f34, Trace cd45, Trace 576a, Trace 472d
	Trace dd91

Protected Intrusions

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

Missing Footprints

Reports parts that have no footprint.

Manufacturing

Manufacturer Part Number • 14

	Designator	MPN
	M3 Mounting Hole	None
	M3 Mounting Hole	None
	C1	None
	C2	None
	D1	None
	D2	None
	D3	None
	J1	None
	J2	None
	J6	None
	J8	None
	J14	None
	M1	None
	M2	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
15.0k
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