Electronics - Robot Main Board

Parts:

• Single Sided Copper Clad Board
  • Get supplys for etching, too
• GPS Module
• Compass Evaluation Board
• Wireless USB Module
• ATMega644P
• Other Semiconductions:
  • Low Dropout Regulator, 5V and 3.3V
  • Lots of 1N4148 Diodes
  • Two 5.1V Zener Diodes
• Other Discretes and Misc:
  • Lots of 10k Resistors
  • Male Pin Headers
  • 2x6 2mm Pin Female Header
  • 40 Pin Chip Socket
  • 470uF Capacitor
  • 0.1uF Capacitor
  • Two 0.22pF Capacitor
  • 18.4320 Mhz Crystal

 

The main board design files will be here. I will walk through each component and why they are there. The reader is expected to be able to etch the provided PCB design.

 

The PCB is designed to be home-etching friendly. Lots of spacing and also only single sided copper clad boards are needed. Both the command station and the robot can use identical boards.