Powering it up again, I used a multimeter to measure the pins on the backlight connector. I didn't know which pin was ground, so I started by using the metal frame, and found a small voltage on 3 of the lines, and 34V on the last. Trying to measure the...
I've written a bit about this on my website https://learn-cnc.com/reverse-engineering-pcbs/ and I'm going to use the same flatbed scanner for these. Unfortunately some of the connectors and stuff on these parts were so large that the flatbed scanner...
The first step is to figure out what makes the boot dryer tick. Here's a photo of it taken all apart. Visible is the squirrel-cage (plastic) fan, timer switch to the left, and heater assembly at the bottom. The dark grey rectangular piece on the right...
Sooner or later, all of us end up putting on our reverse engineering hats and digging in to a device. It might be that you're trying to keep an old piece of equipment running – the manufacturer is long defunct, and parts are no longer available. It might...
A long time ago, (I felt like) I was the coolest kid on the block, with my heavily modified Nokia 3310. A thriving community existed with the purpose of reverse engineering Nokia DCT3 phone firmwares, creating from the simplest mods like changing a few...
PCB Delayering I was hoping to find marking codes on the BGA chips while decapping the main chip(SiP), but found nothing. So I decided to look inside the PCB layers and hopefully get some clues. The delayering process was straightforward,...
If you are interested in getting one of these panels to play with I have one on Ebay eBay item number:291379924695 The shipping is kind of expensive because it is a large package and weighs 6 lbs. But the starting bid is pretty low.
So I knew the drone was creating a WiFi called JJRC-Something. So in order to capture the traffic the app was sending to the drone I fired up Kali Linux and used aircrack-ng to start a scan. First stop the network driver in order to use monitor...
I managed to loosen the LCD from the front, it was glued but I won the battle!Found a sticker saying "LINK wo12864-tgh#" and some searching gave me the following results:Manufacturer of module : http://link-lcd.com/Manufacturer of LCD with cog : http://www.newhavendisplay.com/specs/NHD-C12864WO-B1TGH-M.pdfand...
The mystery part was identified as a transformer.When it was removed from the original PCB one of the enamel wires came loose from the case pin. This resulted in an intermittent/partial connection and a lot of frustration during testing. This was fixed...
When adjusting the resistance of the exercise machine, one single digit of the large time dispaly (the 10's digit) is shown on the screen. This is perfect for reverse engineering the protocol because there is very little data change from sample to sample...
I certainly took my time but after long hours of tracing PCB tracks in Paint.net, identifying components and putting everything together in Kicad I finally ended reverse engineering the 2 PCBs there is in this video intercom.To help me achieve my others...
The RainCloud product has two parts1) An irrigation switch that runs on 4 AA battery with 4 output. This irrigation switch has 4 hex character id. 2) An RF transmitter connected to internet through an Ethernet cable. This transmitter sends command...
These devices are the only things standing in the way of the 1616 being a fully open source design. Alas they had their security bits programmed, and the designers have lost the original source files. From the circuit diagram, we can read the functions...
Although two different people have reverse engineered the wireless protocol used by these wireless temperature sensors, they've both ignored the checksum. While that's fine from the perspective of "at least I got the data out," it's not good enough for...