This is a picture of my project bench.
I using a Raspberry Pi , which is hidden under my soldering iron unit in the photo.
on one breadboard directly connected to the Pi is a mcp3008 which is a spi , analogue to digital convertor, a level shifter connected to a second breadboard feed with a external 5 volt power supply , so keep the 3.3 volt and the 5 volt chip on separate breadboards.
The second breadboard contains a mcp23017 i2c expander chip , half of the chip is been used for input via switches and the other half connected to a ULN2803a , Darlington transistor array to power two rbg leds .
My two project which I`m playing with right now is :-
1/ MPC controller .
2/ Weather station / monitor .
The Music Player Daemon controller , which is finished unless I need to add a little after. The switches control , pause / play , previous , next , delete track from play list and drive , volume up and down , etc
The Weather station / monitor , which is a never ending story .
This project started on the Arduino moved to the Flyport and as now moved to the Raspberry Pi Model A I hope soon.
The project now monitors air temperature inside / outside and sends the data to cosm and thingspeak , the temperature changes the colour of the rbg led.
Too hot is red , too cold is blue and just nice is green .
The full project is controlling the solar powered garden lights , which is state of charge / discharge is monitored.
All in all , it learning about programming and the best way to learn is find a project you can add too , as more you learn the more complex to gets.
