BT-P1C0: Tracker Hardware

The Tracker updates its location on the website here.

Image (v6)

Components used:

Raspberry Pi Pico (Microcontroller): Controls other two modules
NEO-6M (GNSS module): Gets current location
SIM800L (GSM/GPRS module): Sends location to the website
InvenSense MPU9250 (IMU): Crash detection
SSD1306 (OLED Display): Debug codes

Wiring Diagram v3

Working

How to setup this project?

Install this extension.
Open the project's scripts folder in VS Code
Open command pallete by pressing Ctrl+Shift+P
Run this command. Pico-W-Go > Configure Project
Done.

A helpful youtube tutorial to setup VS code for Pico can be found here.

Hardware Checks

Check LEDs on modules to see if modules are working correctly
NOTE: Startup process can take upto a minute or more.

NEO-6M
This modules takes 30 - 45 seconds to startup in the best case.
- No blinking - Searching for satellites
- Blink every 1 second - Position fix found (Module can "see" enough satelittes).
SIM800L
For this module startup takes around 30 seconds.
- Blink every 1s - Module is seaching for a network
- Blink every 2s - Data connection is active
- Blink every 3s - Module is connected to a network and can receive/send

Now, run test_connections.py to check connections.

Renders