preserving the original functionality of the light switch. The rest of the design includes a header for programming the board and another header for tying into the high voltage lines. This is a ...

A light switch is the simplest of electrical devices. Flip the switch, electricity flows. Flip it again, electricity stops.

unlike the EMP-20 which has a switch in the back. There is a power light next to the ZIF socket (Zero Insertion Force) and the ZIF’s handle should be straight up. The power light has three colors: ...

he took a different path and gave this clever light-based programming interface a go. For initial experiments he wisely chose his larger but still diminutive LED matrix badge, which sports a ...

You are ready to program. Press the button. Choose Yes and wait for the light to change from yellow to green. If the light changes to red, then erase or replace the chip and try again. If the default ...