Exposed GPIO

The back of the Apollo MSR-1 has exposed GPIO for a variety of uses.

From left to right:

• SLC (Typo, should be SCL)
  • Used for I2C
• IO 5
  • GPIO 5 of ESP32-C3-Mini
• 5V
  • Used for powering the device, or powering a external sensor
• GND
  • Ground
• 3V3
  • Used to power external sensors. Can not power the MSR-1 from this
• SDA
  • Used for I2C