Revision history of the OPEN REM - aeonSolutions/AeonLabs-AI-Volvo-MKII-Open-Hardware GitHub Wiki
Main Page >> Rear Electronic Module (REM) >> Revision history of the OPEN REM
Last update 08-08-2024
revision 09-2024 revision 09-2024
This revision of the REM has a redesigned power management & supply with new functionality of being able to be programmed without the need to be connected to a Volvo P2. This is useful for all those who are into DIY and customization of their Volvos.
- A dip switch also replaced the CAN Termination jumper.
- Corrections made to the placements of through holes and the hole size to facilitate installation into the plastic enclosure.
- Added DC-DC power Isolation
revision 05-2024
The main REM microcontroller is the EspressIF Systems ESP32 S3 microcontroller a dual core Xtensa LX7 Core Processor running at 240MHz with 512Kb RAM and of 8MB PSRAM. This is the main MCU that is responsible for doing real-time engine management of a vehicle. This hardware revision is a new PCB design and a direct replacement of the factory REM found on P2 Volvos.
Another important feature of this hardware electronics is the personal "CAR KEY". This is a customizable and programmable nano sim card that has stored a custom token access key up to 256 bytes. This access key is also present on any other module of the car and is constantly verified and checked for changes. Any unauthorized change disables running of the car.
🟢 Fully tested and working
A green circle means the hardware electronics or the programming code was fully tested, each of its functionalities and capabilities. And it can be installed in a vehicle. Keep in mind this does not mean errors won't happen. As in everything related to electronics and software, there are revisions and updates. This open hardware is no different.
💯 Fully tested & working, no improvements necessary - already being sold online
🆓 Fully Open hardware \ source code
🤪 There's better than this. don't use it
🔐 Fully closed hardware \ source code
⚡️ fully tested and working, however, it is a dangerous solution to deploy
🟡 Not tested. Working capability is unknown, it may work or not.
A yellow circle means the hardware electronics or the programming code was not fully tested, each of its functionalities and capabilities. This does not mean it not working, it simply means testing is needed before giving a green circle of approval.
🔴 Fully tested but not working.
A red circle means the hardware electronics or the programming code was fully tested, and found some kind of critical error or fault. This means the electronics or firmware code cannot be used in a vehicle.
⌛ Not started.
The hourglass means the hardware electronics or the programming hasn't started. Most likely because is waiting for the necessary test components needed for reverse engineering and also engineering of the new open solution.
🆕 New updated contents
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