- Thu Jun 21, 2007 11:57 am
#31672
Greetings,
I'm interested in the Maxim LED display driver ICs (MAX7219/MAX7221), which were discussed here and here recently.
I've created an EVAL PCB in EAGLE if anyone is interested. BatchPCB is fabbing this one, I've just placed an order, so I expect to have it back in three weeks.
My first thoughts were to create a break-out board with the IC, some headers for comms and power, and a matrix of LEDs. I've packed the 1206 size LEDs into a square matrix (8x8), which will illiminate the tedious wiring and allow for character or graphics mapping experiments.
Throwing the KISS principle to one side, I've extended the PCB design to also include an AVR, RS-232 port, some EEPROM and an RTC (with battery back up). Apart from the MAXIM created PC parallel port I've included a single push switch and a rotary encoder for manual data entry. Enough hardware to do a few projects!
Also, I've had a cute clear plastic enclosure sitting on my work bench for a while, just waiting for a project, so this PCB has been notched to fit.
Anyone else working with the MAX7219/MAX7221? Any suggestions for this EVAL PCB?
Comments Welcome!
I'm interested in the Maxim LED display driver ICs (MAX7219/MAX7221), which were discussed here and here recently.
I've created an EVAL PCB in EAGLE if anyone is interested. BatchPCB is fabbing this one, I've just placed an order, so I expect to have it back in three weeks.
My first thoughts were to create a break-out board with the IC, some headers for comms and power, and a matrix of LEDs. I've packed the 1206 size LEDs into a square matrix (8x8), which will illiminate the tedious wiring and allow for character or graphics mapping experiments.
Throwing the KISS principle to one side, I've extended the PCB design to also include an AVR, RS-232 port, some EEPROM and an RTC (with battery back up). Apart from the MAXIM created PC parallel port I've included a single push switch and a rotary encoder for manual data entry. Enough hardware to do a few projects!
Also, I've had a cute clear plastic enclosure sitting on my work bench for a while, just waiting for a project, so this PCB has been notched to fit.
Anyone else working with the MAX7219/MAX7221? Any suggestions for this EVAL PCB?
Comments Welcome!
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I'm over 13 & support COPPA regulations