Wac0m RipOff BLE edition is completed (sort of).

Yesterday I assembled the Wac0m RipOff BLE edition (video coming soon). finally I can finish this project. It's turned out that the BLE version is lighter than my USB version (well, this time I used less plywood board than before). The Hackaday.io project is available here (plus link to GitHub). And here are some pics … Continue reading Wac0m RipOff BLE edition is completed (sort of).

BQ27541 HACKED! : Fuel Gauge that cost me 1 night and 1 day.

After the my video about replacing battery to my Lenovo yoga book that I also mention the fuel gauge chip, I want to correct something and also more additional info that will be here. The on-board silkscreen "HDQ+" is actuall HDQ and + (cells positive) and addition to that the pinout is (-)(SDA)(SCL)(ThermoSensor)(HDQ)(+). So let's … Continue reading BQ27541 HACKED! : Fuel Gauge that cost me 1 night and 1 day.

Six years of finding the datasheet and pinout of the MN15439A

Chapter 1 : Beginning 6 years ago. I got the old CD car player made by SONY. It's CDX-GT700D and this CD car play having such a fascinating feature. That is the Graphical Display with the the Blue-ish like 488nm laser ! So I don't delay de-solder-ed that day. removing the display and thrown the … Continue reading Six years of finding the datasheet and pinout of the MN15439A