Soldering the main board

This page explains how to solder the main board.

NOTE: Before soldering onto the board see the schematic below and prepare the board by drilling out red parts for the antenna hole.

Schematic of the mainboard solder points and part placement.

Board started drilling and marking. missing marking on F10 - F13, G12- G13 and H12- h13.

When you have drilled out the hole for the antenna continue with the next steps.

1. Solder the pins on to the i2c multiplexer and the CubeCell. You can use the protoboard to hold the pins at the right distance

2. 

   i2c multiplexer pins soldered on

   

   CubeCell pins soldered on
3. Solder the i2c multiplexer and the CubeCell on the designated spot on the board.

4. 

   CubeCell and i2c multiplexer soldered onto the board.
5. Solder two wires from SCL - SCL and SDA- SDA from CubeCell to i2c multiplexer.

6. 

   Yellow wire is SCL and green wire is SDA
7. Solder a red wire from the bottom power rail power side to the top power rail power side on the board.

8. Solder the small power cable included with the CubeCell into the bottom power rail ground(black) and power(red)

9. 

   Close up image of CubeCell
10. Solder the 10k ohm resistor to the GPIO1 on Cubecell and onto the base off the transistor.

11. Solder a black wire from collector of the transistor to the top GND rail of the board

12. Solder a black wire from the emiter of transistor to the bottom GND rail of the board.

13. 

    Top part is sensor power and ground part of the board, bottom is power for microcontroller.
14. Solder the screw terminal on the bottom rail of the protoboard.

15. 

    Screw terrminal

Wiring diagram

schematic of diagram.