nick/overland-controller
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

firmware: auto-detect GPS UART baud

Browse Source
This commit is contained in:
nick
2026-07-17 02:24:40 -06:00
parent 1bf4530517
commit fb2ca464b9
6 changed files with 48 additions and 3 deletions
Download Patch File Download Diff File Expand all files Collapse all files
firmware/xiao-esp32c6-sensor-node/README.md
+1 -1
View File
@@ -9,7 +9,7 @@ This Arduino sketch reads a BNO086 IMU and MAX-M10S GPS and publishes versioned,
| GPS TX to XIAO RX | D9 |
| GPS RX from XIAO TX | D10 |
Power both sensors from 3.3V with shared ground. Required Arduino libraries are Adafruit BNO08x, TinyGPSPlus, and ArduinoJson 6.x. Enable **USB CDC On Boot** for diagnostics. GPS uses hardware UART0 and RS485 uses hardware UART1.
Power both sensors from 3.3V with shared ground. Required Arduino libraries are Adafruit BNO08x, TinyGPSPlus, and ArduinoJson 6.x. Enable **USB CDC On Boot** for diagnostics. GPS uses hardware UART0 and RS485 uses hardware UART1. Startup probes 9600, 38400, 115200, and 4800 baud and reports the first rate producing checksum-valid NMEA.
At startup the firmware scans D7/D8 and accepts either valid BNO08x address, `0x4A` or `0x4B`. If neither appears in the scan, verify 3.3V/GND, swap-check SDA and SCL, and confirm the breakout's PS0/PS1 jumpers are configured for I2C.