I2C Relay driver card and Arduino Today, I coupled my Relay card to the Arduino UNO through the I2C interface. There’s an ADAFRUIT Arduino library available for the MCP23017 IO expander chip. I used a little test-program in the Youtube movie.
Working with both Arduino’s Okay, to work now. I’ve connected the pre-built VMA100 to my MacBook Pro to be able to program it. The separate ATmega328 chip from the barebone kit has been programmed as well. Power for both chips comes
Programming ATmega328 using the UNO Using these instructions, I managed to burn a boot loader on my ATmega328 chip from the barebone kit. Second step, I took out the UNO chip and slapped my barebone kit together on my breadboard
ATmega328 UNO development board The barebone kit I ordered yesterday is hard to program without an actual UNO. So today I ordered an ATmega328 UNO development board at Okaphone. The board is compatible to the Arduino UNO and it has been made
Aduino UNO Barebone Kit Today I ordered an Arduino UNO barebone kit at my “house supplier”, Okaphone in Groningen, the Netherlands. The specs from the webshop, translated: Voltage 5 V Build your own Arduino compatible computer on a PCB or breadboard. kit contains AtMega328 (Uno