And now for my next trick... - Notes

J. Peterson @isonno@mastodon.social - August 25, 2026 19:34:19

@jcs Powerbook of Theseus?

August 25, 2026 19:34:19

joshua stein @jcs@jcs.org - August 25, 2026 17:36:15

And now for my next trick...

August 25, 2026 17:36:15

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joshua stein @jcs@jcs.org - August 25, 2026 17:44:09

A small board sits between the ADB trackball (originally made by Logitech btw) and the logic board which has a USB port that currently houses a Logitech wireless receiver (but could support any USB mouse). It translates USB mouse HID input to ADB mouse packets.

For the mouse scroll wheel, it sends ADB keyboard Page Up and Page Down keys.

August 25, 2026 17:44:09

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Miguel Arroz @arroz@mastodon.social - August 25, 2026 17:51:30

@jcs Awesome! And I want to do the same display trick on the 145 but I can’t find a panel that fits the frame. There’s one with the right resolution (twice the original on both x and y) but just a few millimetres too big. Which panel did you use?

August 25, 2026 17:51:30

joshua stein @jcs@jcs.org - August 25, 2026 18:13:35

@arroz@mastodon.social Innolux EJ090NA-01B

August 25, 2026 18:13:35

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Random_Seed :apple_inc: 💾 🇿🇦 @Random_Seed@bitbang.social - August 4, 2026 08:11:39

@jcs Do the brightness contrast dials work?

August 4, 2026 08:11:39

joshua stein @jcs@jcs.org - August 4, 2026 08:22:55

@Random_Seed@bitbang.social Unfortunately not in this version, the brightness value is just a hard-coded value in the FPGA. In a future version my board could have a connector that mates with the ribbon cable from the dial PCB to take those signals as inputs to adjust it on the fly.

August 4, 2026 08:22:55

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