Can you determine the charge of an alkaline battery by simply dropping it and see how high it bounces? A followup to the KipKay video It seems KipKay’s video is just a ripoff of this earlier ONE Podcast: Download

Dave tears down and attempts repair on a 1989 vintage Acorn Archimedes A3000 Computer, using the very first ARM processor, the Acorn RISC ARM v2 Service manual HERE Reference Manual HERE Schematics HERE Forum HERE Podcast: Download

How to capture and reverse engineer an infrared IR code and use an Arduino or other microcontroller to replay the command. Oscilloscope and logic analyser capture, coding, troubleshooting, tounge angle, it’s all here. In this instance Dave captures the NEC (Japanese) code from his Canon video camera remote control on …

T-Shirts: 555 Timer Negative Feedback Fluxgate Condenser

Dave wires up an Arduino (Freetronics Eleven) to control his video camera via a learning IR remote control matrix keypad. NOTE: this is NOT an optimised solution, nor a tutorial on the best way to do this, it’s a quick rudimentary hack while showing a few traps. This was the …