# XIAO ESP32-S3 Smart Glasses PCB ## Description Welcome to your new project. Imagine what you can build here. ## Project Details - **Owner:** didirivay - **Created:** 6/26/2026 - **Last Updated:** 7/6/2026 - **Visibility:** Public - **Power Requirements:** Li-ion - **Connectivity:** WiFi/BLE - **Domain:** Wearable - **Human Interface:** Touch ## Key Components ### MIC1 — INMP441 MEMS - Manufacturer Part Number: INMP441 - Datasheet URL: https://invensense.tdk.com/wp-content/uploads/2015/02/INMP441.pdf - Part Type: Module - Manufacturer Name: InvenSense - License: https://creativecommons.org/licenses/by/4.0/ - Role: I2S microphone **Pins:** - GND [pin 6] - L/R [pin 3] - SCK [pin 1] - SD [pin 4] - VCC [pin 5] - WS [pin 2] ### OLED1 — Connector 01x04 Horizontal - Part Type: Connector - Manufacturer Part Number: 0.96 inch I2C OLED 128x64 4-pin module/header - Role Details: 4-pin header for external OLED: GND, 3V3, SDA, SCL - Manufacturer Name: FILL IN **Pins:** - PIN_1 [pin 1] - PIN_2 [pin 2] - PIN_3 [pin 3] - PIN_4 [pin 4] ### RV1 — 3306F-1-103 - Manufacturer Name: Bourns Inc. - License: https://creativecommons.org/licenses/by/4.0/ - Datasheet URL: https://www.bourns.com/docs/Product-Datasheets/3306.pdf - Manufacturer Part Number: 3306F-1-103 - Part Type: Potentiometer - Resistance: 10kΩ - Role: Analog input potentiometer **Pins:** - 1 [pin 1] - 2 [pin 2] - 3 [pin 3] ### SW1 — PCM12SMTR - Datasheet URL: https://www.ckswitches.com/media/1424/pcm.pdf - Manufacturer Part Number: PCM12SMTR - Part Type: Switch - Manufacturer Name: C&K - Role: Power switch **Pins:** - COM - P1 - P3 - SH1 - SH2 - SH3 - SH4 ### TOUCH1 — TTP223 capacitive touch module - Part Type: Module - License: https://creativecommons.org/licenses/by/4.0/ - Manufacturer Name: FILL IN - Manufacturer Part Number: TTP223 capacitive touch sensor module - Purchase Url: https://www.aliexpress.com/item/1005006246380749.html - Role: Sensing (Shunt) **Pins:** - GND - I/O - VCC ### U1 — Seeed Studio XIAO ESP32S3 - Purchase Url: https://www.seeedstudio.com/XIAO-ESP32S3-p-5627.html - Datasheet URL: https://files.seeedstudio.com/wiki/SeeedStudio-XIAO-ESP32S3/res/esp32-s3_datasheet.pdf - Manufacturer Name: Seeed Studio - Product Info Url: https://wiki.seeedstudio.com/xiao_esp32s3_getting_started/ - Part Type: Microcontroller - Manufacturer Part Number: 113991114 - Role: Main controller - Role Details: Seeed XIAO ESP32-S3 module; handles I2S microphone, I2S amplifier, I2C OLED, touch input, ADC volume input. **Pins:** - 3V3 [pin 12] - 5V [pin 14] - D10_A10_MOSI_GPIO9_TOUCH9 [pin 11] - D7_RX_GPIO44 [pin 8] - D8_A8_SCK_GPIO7_TOUCH7 [pin 9] - D9_A9_MISO_GPIO8_TOUCH8 [pin 10] - GND [pin 13] - GPIO43_TX_D6 [pin 7] - TOUCH1_GPIO1_A0_D0 [pin 1] - TOUCH2_GPIO2_A1_D1 [pin 2] - TOUCH3_GPIO3_A2_D2 [pin 3] - TOUCH4_GPIO4_A3_D3 [pin 4] - TOUCH5_GPIO5_SDA_A4_D4 [pin 5] - TOUCH6_GPIO6_SCL_A5_D5 [pin 6] ### U2 — MAX98357 Breakout - Product Info Url: https://www.adafruit.com/product/3006 - Role: Amplification - Manufacturer Name: Adafruit - Manufacturer Part Number: MAX98357A I2S 3W Class-D amplifier breakout **Pins:** - BCLK - DIN - GAIN - GND - LRC - S- - S+ - SD - Vin ### U3 — TP4056 Module - Manufacturer Part Number: ASIC [Billiton Ltd.] - Datasheet URL: https://www.alldatasheet.com/view.jsp?Searchword=TP4056&gad_source=1&gad_campaignid=156181564&gbraid=0AAAAADcdDU8C76AYsPHlLD3k9KJSX5aOh&gclid=Cj0KCQjws83OBhD4ARIsACblj1_h6hSyzB5VXM9Rtr6p-rDVV7dmjykXhAmTZ9K0X-oNzUabzJCGV6AaAj5AEALw_wcB - Part Type: Module - Manufacturer Name: TP4056_Module - Role: Battery charger **Pins:** - BAT- [pin 5] - BAT+ [pin 6] - IN- [pin 1] - IN+ [pin 2] - OUT- [pin 3] - OUT+ [pin 4] *The full schematic, PCB layout, bill of materials, and interactive design are available at [https://www.flux.ai/didirivay/xiao-esp32-s3-smart-glasses-pcb~x0](https://www.flux.ai/didirivay/xiao-esp32-s3-smart-glasses-pcb~x0).* --- *Generated from [https://www.flux.ai/didirivay/xiao-esp32-s3-smart-glasses-pcb~x0](https://www.flux.ai/didirivay/xiao-esp32-s3-smart-glasses-pcb~x0)*