Microcontrollers and stuff A blog by Derk Vedelaar


Precision voltage reference

I recently stumbled upon the chip ref102p (datasheet, pdf). This is an extremely precise voltage reference that gives 10 volt +/- 0.0025v without calibration. I thought this is a great way to test my multimeter (which is an extremely cheap one, because well, I don't need an expensive one).


Self soldered adxl345

I received some adxl345 chips (2). They where even smaller than I imagined. 5.3mm by 3.3mm. 14 pads to solder. I'm never going to solder that thing. Ok ordered a pcb from ebay (pic) and some caps. See if I can make it work.