Instrument cluster With full LCDs TFT on the 4 gauges
Main Page >> Instruments Cluster
Last change 26-02-2024
⌛ Status: not started >> PCB Design >> PCB fabrication >> Component assembly >> Testing
For the Instruments cluster with full LCD displays, I'll be using 2x 4" round TFT LCDs sold on AliExpress here in replacement of the traditional needle gauges for speed and RPM. (...) To run the Instruments Cluster, I'll be using EspressIF Systems ESP32 S3 microcontroller a single core Xtensa LX7 Core Processor running at 160MHz with 400Kb RAM. This MCU has wireless radio capabilities that are disabled on the hardware electronics itself for safety concerns.
Click to View on Youtube
In regards to safety against theft the electronics will include a cryptographic IC that will be used to match the car owner's VIN number and with all other open hardware electronic components installed on a vehicle. In practical terms, this means, that in the event of theft, to make a specific open hardware work on another vehicle, will require the replacement of the main microcontroller processing unit without the need for specialized tools and equipment. More information about safety and sensor data validation on this sci. research paper titled "Validation of Experimental Data Origins: A Swarm of DAQ devices able to Deliver Unique Experimental Data using Blockchain‐like Fingerprint ID to a Data Repository".
OEM Connectors
Since all wiring connectors are proprietary of Volvo, is impossible to buy one connector to solder and do PCB assembly. Nowadays there are a plethora of automotive OEM connectors sold on the internet, what is important is the connector to fit the existing Volvo enclosure housing for a particular electronics.
I've selected an OEM connector for this open instruments cluster electronics being designed and prototyped. This connector is sold on AliExpress here.
🟢 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.
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