Portable chargers are supposed to be the quiet workhorses in your bag, not a source of fire risk on your desk or nightstand.
[Barry] needed some way to get serial output to help debug his efforts to port Linux to the HTC TytnII (Windows mobile Pocket PC phone). He wrote some code to send serial output via one of the LEDs on ...
Advanced Analogic Technologies' AAT1231 is a high frequency, high efficiency inductive boost dc-dc converter for controlling white LEDs in portable systems operating from single-cell ...