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Four new boards, all authored with KiCad 10: - hmi/communication/XIAO_COM: XIAO-based com module (README, HARDWARE.md, plots, gerbers, STEP/STL) - hmi/submodule/sensor/EMG_DAQ_ADS1292: ADS1292 EMG front-end with an electrodeFilter sub-sheet. Its README and description.yaml were copied from the ADS1293 module and still named that chip -- corrected here. - hmi/submodule/v2/emgvib: combined EMG + vibration submodule - tool/flexBracelet: flex bracelet with JLCPCB production files Still missing and left for a follow-up: description.yaml for XIAO_COM, and README + description.yaml for emgvib and flexBracelet. Claude-Session: https://claude.ai/code/session_01Fp1CWL3JE8kAHQpHzFCsU5
XIAO_ADAPTER - Seeed XIAO Adapter Board
Adapter board for using Seeed XIAO ESP32-S3 modules with AxonCtrl ADC modules. Provides a low-cost MCU option for development and testing.
Hardware
| Component | Type | Comment |
|---|---|---|
| XIAO ESP32-S3 | Module | Seeed Studio module (not included) |
| 2x13 connector | Pin header | Interface to ADC modules |
Critical Components BOM
| Component | Part Number | Function | Datasheet |
|---|---|---|---|
| MCU Module | XIAO ESP32-S3 | WiFi/BLE microcontroller module | Missing (Seeed product) |
| ADC Connector | ZX-PZ1.0-2-13PWZ | 2x13 pin header to ADC board | - |
Note: The XIAO ESP32-S3 module is purchased separately from Seeed Studio.
Pin Mapping
The XIAO module pins are mapped to the 2x13 ADC connector. See the schematic for detailed routing.
Compatibility
| ADC Module | Compatible |
|---|---|
| EMG8_ADS1299 | Yes |
| EMG32_RHD2132 | Yes |
| EMG64_RHD2164 | Yes |
Electrical Schematic
PCB Layout
3D Model
| Format | Location |
|---|---|
| STEP | XIAO_ADAPTER.step |
| STL | XIAO_ADAPTER.stl |
Firmware
source ~/esp/esp-idf/export.sh
cd firmware/esp-idf/axonctrl
idf.py menuconfig # Select XIAO_ESP32S3 board + ADC module
idf.py -p /dev/ttyACM0 flash monitor