Image: u/klazera on Reddit · The Amiga latency tester on the medical monitor, with a DIY joystick
A $30 medical monitor that takes Amiga 500 RGB directly
A recycled FIMI/Barco medical LCD accepts the Amiga's 15 kHz RGB through its BNC inputs with no extra circuitry. The maker had Claude write a latency tester to measure it.
Credits
Earliest dated source:
The full story
The maker bought a 24-inch medical LCD from an electronics recycler for $30. It is sold as a FIMI, Barco or Philips part and has no public documentation. Seeing BNC inputs on the back, they guessed it might accept the Amiga 500's 15 kHz RGB video, and it does: RGB and composite sync from the Amiga's DB23 port go straight into the BNC inputs, with no extra circuitry.
The monitor runs on 24 V DC, so a PCI-E lead from an ATX power supply powers it. To measure its lag, the maker had Claude write a latency tester that changes the screen colour mid-frame when a joystick button is pressed, built a joystick with an LED, and filmed both in slow motion. The result was about 5 ms of input lag.
How it was done
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Sources
From a short post by the maker, so the details are as they tell them.
- Reddit: FIMI/Barco/Philips MED24ESH E240HM SN240S1 LCD monitor with Amiga 500Reddit poster: klazeraPosted
The maker's post in r/amiga with wiring, power and latency results.