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?

1. Install this extension.
2. Open the project's scripts folder in VS Code
3. Open command pallete by pressing Ctrl+Shift+P
4. Run this command. Pico-W-Go > Configure Project
5. 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.

1. 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).
2. 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