Schematic for AI Pendent (Pt2) cd74: Product Type: Wearable AI...

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MK2

End of Life

MK1

End of Life

explain this project.

nico

@copilot explain this project.

copilot

Sure! This project is about designing a wearable AI pendant that can record audio, generate transcripts, evaluate sentiment, and manage information. Here are the key aspects and components of the project:

Key Features and Functionalities

Audio Recording and Processing:
- Input: The pendant is activated by pressing a button ($SW1$).
- Output: It uses 2 microphones ($MK1$ and $MK2$) to capture audio, which is then transcribed to text and analyzed for sentiment.
User Interaction:
- Visual Feedback: An RGB LED ring ($LED1$) provides visual feedback to the user.
- Connectivity: The pendant connects to a smartphone via Bluetooth, and also supports Wi-Fi for data transfer.
Power Management:
- Battery: It uses a 2000 mAh LiPo battery, providing 6 hours of continuous use.
- Charging: USB-C port ($J1$) is used for charging.
- Power Regulation: Components like the battery connector ($BATT ; CONN$), DC-DC switching regulator ($U2$), and battery management IC ($U3$) manage power distribution and charging.
Embedded AI Capabilities:
- Speech to Text: Transcription of audio to text is handled by software running on the U1.
- Sentiment Analysis: Embedded AI evaluates the sentiment of the transcribed text.
- Information Management: The system filters essential information and action items based on the transcribed text and sentiment analysis.

Technical Specifications

Operating Voltage: 3.3V
Operating Conditions: Temperature range from -10°C to 70°C, and humidity from 10 to 90%.
Compliance: The design adheres to RoHS, FCC, and CE standards.
Life Cycle: The pendant is designed for a 10-year life cycle with a 20,000-hour reliability expectation.

Core Components

Microcontroller:
- ESP32-S3-WROOM-1-N8R8: This controls the AI processes, Bluetooth, Wi-Fi, and various sensors.
Battery Management:
- BQ24075RGTT: Manages the LiPo battery charging and power distribution.
Audio Processing:
- ICS-43434: Used for the microphones to capture audio.
LED Indicator:
- WS2812B-B: Controls the RGB LED ring for visual feedback.

Power Management Components

Regulators:
- LM2623AMM/NOPB: Used for voltage regulation.
Capacitors and Resistors:
- Various capacitors ($C7$, $C13$, etc.) and resistors ($R8$, $R11$, etc.) for filtering, decoupling, and other functions.

Connectivity and Interface

USB-C Connector:
- 1054500101: For charging and potentially wired data communication.
Bluetooth and Wi-Fi:
- Handled by the ESP32-S3 module, enabling wireless communication capabilities.

This overall approach ensures that the pendant is compact, efficient, and capable of performing the desired AI functionalities while maintaining good user interaction and robust power management.

PP5V0

Capacitance

10u F

C13

Capacitance

22u F

SDIO_DAT0

PP3V3

Manufacturer Part Number

LM2623AMM/NOPB

INDICATOR_LED

I2S0_WS

PP3V3_FREQ

Resistance

1k Ω

I2S1_WS

PP3V3

SDIO_DAT3

SW1

R11

Resistance

10k Ω

SDIO_CMD

I2S0_BCK

C14

Capacitance

22u F

PP3V3_FREQ

PP3V3

Resistance

5.1k Ω

SDIO_DAT2

PP5V0

PP3V3_SW

USBC2.0_D_N

I2S1_BCK

SDIO_DAT0

LED1

I2S1_SDI

Resistance

100k Ω

Inductance

4.7u H

SDIO_DAT2

I2S0_BCK

PP3V3_SW

C10

Capacitance

22u F

PP3V3

SDIO_DAT3

VBAT_OUT

Capacitance

10u F

Capacitance

10u F

Resistance

150k Ω

I2S0_SDI

Resistance

5.1k Ω

USBC2.0_D_P

SDIO_DAT1

VBAT_OUT

I2S1_SDI

PP3V3

I2S0_WS

C16

Capacitance

0.1u F

Capacitance

0.1u F

SDIO_DAT1

C12

Capacitance

22u F

SDIO_CLK

C15

Capacitance

10u F

C11

Capacitance

4.7p F

PP3V3

Capacitance

10u F

R10

Resistance

1k Ω

Resistance

10k Ω

SDIO_CLK

INDICATOR_LED

I2S1_BCK

Resistance

165k Ω

I2S1_WS

PP3V3

SDIO_CMD

I2S0_SDI

Reviews

Electrical Rule Checks

Missing Footprints

Reports parts that have no footprint.

Design Rule Checks

Overlapping Copper

Reports copper elements that are shorting.

Invalid Layer

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

Component Overrides • 9

	Designator	Ruleset
	＊｀REF｀＊	Override rule for ＊｀REF｀＊
	＊｀REF｀＊	Override rule for ＊｀REF｀＊
	＊｀REF｀＊	Override rule for ＊｀REF｀＊
	＊｀REF｀＊	Override rule for ＊｀REF｀＊
	Battery	Override rule for Battery
	IC＊＊	Override rule for IC＊＊
	J1	Override rule for J1
	S＊＊	Override rule for S＊＊
	Text Shape	Override rule for Text Shape

Airwires • 3

	Designators	Net
	U3:EN1, U3:VSS	GND
	Trace 00b7:Trace 00b7, Trace d2f2:Trace d2f2	Net 13
	Fill:Fill, U3:VSS	None

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

Detect any via, trace or copper fill island that is not connected to any net.

Protected Intrusions

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

Manufacturing

Manufacturer Part Number • 3

	Designator	MPN
	BATT CONN	None
	R7	None
	THERMISTOR	None

Parts Available

Beta

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System Checks

Auto-Layout

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Passive Components

Resistor Power Rating

Beta

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Pull Up/Pull Down Presence

Beta

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

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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

AI Pendent (Pt2) cd74

Controls

Properties

Software

Python

Connectivity

USB, WiFi, Bluetooth

Wireless Protocol

Wi-Fi, Bluetooth

Operating Voltage

3.3V

Operating Humidity

10 to 90%

Compliance

RoHS, FCC, CE

Operating Temperature Range

-10°C to 70°C

Antenna

PCB Trace

Human Interface

RGB LED ring and 1 Button

Reliability

20,000 hrs

Life Cycle Expectancy

10 years

Form Factor

Wearables

Number of sensors

Sensor Type

2 Microphones and 1 Button

Domain Application

Consumer Electronics

Battery Type

LiPo 2000 mAh

Manufacturing Quantity Target

Availability & Pricing

Distributor		Qty 1
	Arrow	$18.13–$20.56
	Digi-Key	$18.99–$35.10
	LCSC	$78.17
	Mouser	$31.99
	Verical	$6.40–$9.88

Assets

Thumbnail

Edge Computing Template Thumbnail.png

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