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I2C LCD and keypad controller using ATTiny2313

A while back @andrewoke was bemoaning the availability of an open source HD4470 I2C LCD and keypad controller. So I wrote one – the code fits into an Attiny2313 (just). ATTiny2313 chips are available for under $2. The AVRDude command line I use to program the ATTiny2313 with Adafruit’s USBTiny programmer is: (note the fuse […]

New Home Monitoring – part 2

********* Notice – the protocol to be used has pretty much completely changed. I am adopting the aProtocol described on the OpenKontrol web site

aProtocol is essentially a hub polling devices, it does allow for devices to announce events but in the main it is polling. The aProtocol is still work in development, I have […]