Electronics - Ahmad138/SatRot GitHub Wiki

To be fully portable and independent, the whole system needs to be battery powered so it can be used outside without the need for mains connection. That means the batteries need to power the raspberry pi, the 2 motors and the IMU. This requires a relatively large current demand.

A driver board for the 2 motor drivers, an IMU board and a power board capable of safely discharging and charging the batteries were designed to accommodate the electronic requirements of the project.

Let us look at the electronics system in the following sub chapters:

• Requirements
• Schematics
• PCB Designs
• Components List
• Complete setup

Drivers Pin Connections

	Wiring Pi	Driver Az	Wiring Pi	Driver EL
enable	0	11	1	12
dir	2	13	4	16
Step	3	15	5	18
ms1	12	19	6	22
ms2	13	21	10	24
ms3	14	23	11	26

IMU Pins connections

IMU	Wiring	Raspberry Pi
SDA	8	3
SCL	9	5
X	15	8
Y	16	10