For a custom board with an ESP32-S2, BNO085 IMU, and ISL6292 Li-ion Charger.

You can see the CAD files for the project here.

Pinouts for ChuuniTracker as of PCB revision v1.5.

• IO0 = Boot0 Button
• IO5 = Voltage Divider
• IO6 = Button (Opt)
• IO8 = TCA9548 RST pin
• IO16 = BNO085 Reset (Onboard)
• IO21 = BNO085 Interrupt (Onboard)
• IO33 = SDA_EXT
• IO34 = SCL_EXT
• IO35 = SDA_INT
• IO36 = SCL_INT
• IO37 = VCCIO Enable (Required HIGH for SDA_EXT/SCL_EXT)
• IO38 = 1-bit mem for reset
• IO45 = Status NeoPixel

In heavy development, will update README when more work is done.