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Serial Mouse Blaster: Quest for the Serial Optical Mouse Part 2 

Scrap Computing
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We are building the Serial Mouse Blaster PCB and testing out on an optical USB mouse.
This is practically a USB Mouse to serial mod.
Part 1: • Quest for the Serial O...
PCB: github.com/scrapcomputing/Ser...
Firmware: github.com/scrapcomputing/Ser...
CuteMouse DOS Driver: cutemouse.sourceforge.net/
Music: Track Stalker from the Duke Duke Dance Party Album
by the Space Quest Historian, Troels Pleimert
spacequesthistorian.bandcamp.com
• "Duke Duke Dance Party...

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24 июл 2024

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Комментарии : 18   
@gamefragments
@gamefragments Год назад
One thing that I noticed while repairing phones is that many "secondary connections", like speakers, use pogo pins or regular springs. This may solve your hardwired tx/rx problems between your board and the pico; as well as adding modularity.
@davefiddes
@davefiddes Год назад
I think that going all in on SMD and making as many components SMD as you can would make assembly a lot easier. Interested to see how your project develops.
@intel386DX
@intel386DX Год назад
Fantastic and useful project!
@NaoPb
@NaoPb Год назад
I think I would consider giving the board it's own enclosure so I do not have to fit it inside the mouse. But that is merely a personal preference so I don't have to solder smd components. I've ordered a new Microsoft Basic Mouse to see of this power saving modification can be done on that as well.
@scrap_computing
@scrap_computing Год назад
I am using hand-soldering optimized solder pads and large 1206 SMD components so they are not too tricky to solder. Ah nice, please share the current readings before/after the power mod! I am trying to build a database of all compatible mice on the project's github page.
@eformance
@eformance Год назад
Look at using something like an MCP100 supervisory circuit to reset the Pico. the MCP100 is available in multiple voltage ranges, so pick one that is very close to 5v, so you get a reset immediately after unplugging. Another trick is to add bleeder resistors. You could probably gate the bleeder resistor with a diode, to avoid current draw while plugged in.
@scrap_computing
@scrap_computing Год назад
Thanks for the suggestions! I think I found a good enough solution: I am now using a PNP transistor that acts as a capacitor bleeder when the power is low.
@eformance
@eformance Год назад
@@scrap_computing The MCP100 is a single TO-92 device that does it all.
@detalite
@detalite Год назад
The best solution would be not using Raspberry Pi Pico board, but RP2040 with necessary components on custom designed PCB.
@Jkauppa
@Jkauppa Год назад
why not imu (3acc + 3gyro) + table distance led+sensor = no ball/image mouse, just the imu as the mouse, led+sensor is to detect lift-off
@Jkauppa
@Jkauppa Год назад
no moving parts mouse, you could also use a touch pad on the top/bottom sides, detecting finger/table sliding
@scrap_computing
@scrap_computing Год назад
That would be a cool project!
@MrFixiit
@MrFixiit Год назад
Cant you use an arduino mini they got a much smaller footprint.
@RooMan93
@RooMan93 Год назад
Or even an ATtiny85 and bit-bang the whole thing. even better if you find a PS/2 optical mouse and that reduces the complexity of the USB.
@scrap_computing
@scrap_computing Год назад
Any board should work as long as it supports USB host. You don't need that much processing power.
@Dxceor2486
@Dxceor2486 Год назад
Then he can also use the pico's controller directly as you can buy it alone.
@PhilipPetev
@PhilipPetev Год назад
Nice one, but why don't you just come up with your own design for the mouse housing? Or maybe even a full-blown mouse...
@scrap_computing
@scrap_computing Год назад
I think the next version will fit nicely. It's much smaller than this one so we won't have any issues with the housing.
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