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October 30, 2008
So the more I am working with picaxe products the more I am finding limitations to their boards...
For example: The 28 board (which I believe has become sorta the "standard" has no specific i2c output, no space for an EEPROM, the output and input pin arrangements change from one side to the other and inputs 0-7 have no ground! So here's the deal, I think I am going to design a super-board for myself and was wondering if anyone wanted to throw in their ideas as well. I will be designing around a Picaxe 40x1 as it is usally the same price as a 28x1 but with so many more in's and out's.
Here's what I have so far:
A good on/off switch
A seperate switch for just the motor driver
All outputs and all inputs are 3 pin Neg/Pos/Signal (set-up for servo connector)
Jumpers or dip-switch to switch the L293D from out 0-3 to out 0-1 and the 2 PWM outputs
Space for EEPROM(S) and seperate SCL/SDA output pins
IR input for remote control
Seperate Serial IN/Out
Screw terminals for L293D
Trimmer Pots on-board for motor trimming/ etc.
Somewhere easy to add resistors to outputs for servos