T-Watch + bno085 === Wearable IoT IMU
A simple project that fuses T-watch with bno08x
Hardware
Requirements
- TTGO T-watch (https://www.aliexpress.com/item/1005001581849024.html; https://www.amazon.com/LILYGO-GPS-Lora-Programmable-Environmental/dp/B07ZWXV5FQ)
- bno08x (https://www.aliexpress.com/item/4000263329804.html; https://www.amazon.com/Taidacent-Nine-axis-High-Precision-Accelerometer-Magnetometer/dp/B0836WJLVH/)
- wires
- soldering equipment
Solder the bno08x chip to the TTGO T-watch baseplate (I2C connectivity). Test connectivity using the I2C Test Code (change pin numbers if necessary).
Sample code
Test code
pod_mcu_code-08x-test
Load this code[https://github.com/tejaswigowda/t-watch-bno085/blob/main/pod_mcu_code-08x-test/pod_mcu_code-08x-test.ino] using the Arduino IDE.
If everything goes right you should have the quaternion output over the serial port. You can test using Webserial here.
Wifi Visualization (via Websockets)
-pod_mcu_code-08x-wifi: Load using arduino IDE. Please add your wifi login ceredentialis in wifilogin.h.
-pod_mcu_code-08x-wifi: cd to this folder and run the server using node server.js.
Then open http://localhost:1234#[mac_address] in your browser to visulize the IMU data.
