Questions tagged [reverse-engineering]
The process of taking a completed system and determining details of its design by analysing it; may have legal limitations or ramifications in different jurisdictions.
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Reverse-engineer Bubendorff CLEP21 remote controller [migrated]
TLDR; I have a Bubendorff shutter system, whereas each shutter has its own remote controller. I am trying to clone the remote controllers, to build a single system for shutter control. Based on my ...
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How to isolate a chip from a board without unsoldering it?
I have a board from some device with SPI flash memory chip. I also have a separate CH341a programmer for such chips and I intend to read the SPI flash memory chip from the board.
Now I want to do this ...
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Can heat sinks and/or heat pipes be retrofitted onto an existing electronic device?
I have a USB hub that is going into an additional enclosure that is fairly airtight. This USB hub is only rated for 0C to 40C operational, however it will need to survive hotter and colder ...
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1
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What are the purpose of these components on my car ECU?
What are these metal "cages" around the capacitors as seen in the circuit below (2x).
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Can I operate DVD Drive Tray Mechanism without PC? [closed]
I want to make a motorized drawer using a broken DVD drive. I'd like to use the tray mechanism as a whole if possible. I can drive the motor by directly applying power to it, but I don't want to add a ...
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How to extract firmware from STM32F437
I found a board with STM32F437II chip on it. Apparently it has built-in flash memory to store the firmware. Is there a way of extracting this firmware for further analysis and reverse engineering?
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Monitoring an LED state from another circuit via an optocoupler in ESPHome
I am attempting to control a KVM switch using ESPHome on a D1 Mini ESP8266 board, so learning some electronics along the way.
The KVM has the main unit and a controller on the end of a 4 core cable. ...
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What protocol is shown in these scope traces?
I have a PIC16F1937 series processor on a fire detection control card. I receive the output signal through Rx connections. I cannot figure out the protocol despite all my attempts.
The signals present ...
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Replacing clock crystal with signal generator [closed]
I have this blob chip module that I'm reverse-engineering, that ran off a 12 MHz crystal. In getting the module out I broke the crystal.
It was a two pin through hole component. Big orange blob marked ...
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Are these old graphic controllers all the same die packaged by different manufacturers? [closed]
I am looking at old ISA graphic adapters that would provide a simple black and white text mode. I am trying to make the design as simple as possible and I would like to make the PCB as small as ...
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What causes a digital signal to look like this?
I’m reverse engineering an existing microprocessor to microprocessor serial signal. When I put my scope on the target device I see the clock and data lines just fine on my scope when I connect it to ...
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Why does this pulse generator have a voltage inverter?
I am designing a fast pulse generator, inspired by Leo Bodnar's pulse generator, using the ADCMP572 ultra fast comparator.
It looks like a pretty simple device, using a PIC microcontroller to drive ...
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SMD component on a dotmatrix printer driver board
This SMD (code: 327G) is mostly used between data lines from the microprocessor and (possibly) some solenoids of a dot matrix printer. So it should be some switching device. I redraw related part of ...
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Reverse engineer BLE LED strip protocol
I am trying to create a custom application to control some Bluetooth-controlled LED strips. That is, I would like to reverse engineer how they are controlled without having any datasheet -- I'll ...
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Can anyone identify this IC marked AFGMG?
I am reverse engineering a PCB. It has an unknown IC marked AFGMG.
IC details:
Name on IC = AFGMG
8 pin
IC size = 1.6x3 mm
It looks like this phone cannot send a better picture.
PCB:
Schematic:
If ...
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