Wacom EMR I2C : HACKED!

Hi, welcom back again to my another blog post. Today I will take you through my second time trying to reverse engineering something after the MN15439A vfd. This time, It's the hardware reverse engineering that I've been waiting for almost 2 years to have a chance to do that. I mean, I have a chance … Continue reading Wacom EMR I2C : HACKED!

Lichee Pi Nano with W25N01GV support [Complete Guide]

Hi, It's quite a while now, and it been ~1 year since I bought Lichee pi nano and tried to upgrade from 16M SPI-NOR flash to QSPI-NAND W25N01GV 128M flash, I f**ked around with U-boot for year to make it boot but I didn't until 10 days ago (from the time of writing). I can … Continue reading Lichee Pi Nano with W25N01GV support [Complete Guide]

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

LTL-7100M-HB : The super weird bi-color LED bar graph.

Month ago, I got some very rare LED bar graph from yoycart ( Chinese taobao agent) here. And this is some bit from datasheet with the Charlieplex-like connection of bi-color LED (green,Yellow) Now we have the diagram, It's time for the real thing up and running ! As again. No arduino this time, just bare metal … Continue reading LTL-7100M-HB : The super weird bi-color LED bar graph.