There are many output devices: a speaker, a DC motor, a stepper motor and an RGB LED board. I have made several of these Ð the RGB LED was the most successful and was for a time the most delightful little multicolored flashing light. Then I connected the power wrong and there was a shortlived puff of smoke and then I had only a red light that blinked forlornly.

BIG LESSON:find out which pins need to be plugged where!

HereÕs a picture of the lonely red LED blinking although it is difficult to make out in the flash.

rgboutputdevice

Mercedes tried to get us to understand. She filled the white board several times with detailed explanations.

sensorprogram

Along with the RGB LED, I made a DC motor board that would not program. We did make all the right moves and downloaded the C and Make files and used the ISP to try to program the board but it failed. I have made another board but may not get it populated before the 8th of August.

dcmotor