attiny1634 projects
A simple controller based on the attiny1634 mcu. The controller is an 8 channel adc converter with code to interface to a master SPI controller. The interface also has code to control an IO expander mcp23s17 with 2X8 channel digital ouputs
Command line to flash iotcontroller
avrdude -c usbtiny -p t1634 -v -Uflash:w:iotcontroller.hex:i
Fuse settings (spi enabled,8MHz internal clock, divide by 8, start up time at max)
avrdude -c usbtiny -p t1634 -V -U lfuse:w:0x62:m -U hfuse:w:0xdF:m -U efuse:w:0xFF:m
Simple routine to test the spi interface and io expander chip
A simple blinktest, switching an led on and off with some delay