Hex Master Control Board

This project is still in progress, so the contents of this page may be outdated or incomplete.

Overview

While working with Arduino and Adafruit boards is useful for quick results out of the box, there are a number of advantages that come with designing custom electronic boards for a hexapod rover. Among other things, a custom PCB:

• Reduces the need for jumper wires and eases cable management,
• Offers a slimmer profile than three third-party boards,
• Is more robust to movement and catching, and
• Interfaces more elegantly with auxiliary devices, like the XBee.

This new board will use an Atmega 2560, just like the Arduino Mega, and combine the functionality of the Arduino and Adafruit servo driver boards. Additionally, it will interface more directly with the IMU and XBee boards.

Block Diagram

Coming soon

Bill of Materials

Part	Digikey Part Number	Cost Each (USD)	Quantity	Cost (USD)
Atmega 2560 QFP	ATMEGA2561-16AU-ND	12.07	1	12.07
Micro USB 2.0 Connector	609-4616-1-ND	0.45	1	0.45
USB to UART Bridge	768-1007-1-ND	4.50	1	4.50
Power Multiplexer	296-46373-1-ND	2.01	1	2.01
5V Linear Regulator	MCP1702T-5002E/CBCT-ND	0.49	1	0.49
5.5mm Barrel Jack	CP-002B-ND	0.63	1	0.63
PWM Driver	568-8366-5-ND	2.26	2	4.52
5V Buzzer	433-1028-ND	0.54	1	0.54
3-row, 12-pin RA header	SAM13035-ND	0.82	6	4.92
16MHz Crystal Oscillator	535-10226-1-ND	0.27	1	0.27
				35.40