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 I have a professional #circuit designer who has agreed to review my designs. He has taught me SO MUCH over the past few days! I've seriously leveled up my game.

He's about to start his own company too. If anyone here wants a custom #circuit made, you should absolutely hire John!

He focuses mainly on #electronics and #microcontrollers (think Arduino Raspberry Pi Pico), but also does things with the normal Raspberry Pi boards too.

Want a solar powered camera that does Automatic License Plate Reading and uploads data over #Meshtastic? I'm sure he could do it.

A custom pager that has less expensive hardware than all the existing standalone Meshtastic pagers? No problem.

A customized #bitaxe? Probably doable.

Hardware to monitor plants in a #greenhouse and automatically, circulate air, vent, and water plants when needed? He already has one for himself!

Whatever you can dream up, he can probably make it happen. And unlike me, you can hire him to do so. I doubt he'll be cheap, but you get what you pay for.

#GrowNostr #pcb #CircularEconomy 
 The current project I'm working on is a hat for a #RaspberryPi Pico that will let you plug in your USB keyboards and mice to your computer's PS/2 port.

Why? #Security. Everything connected to your USB controller can see every keystroke you type. So if you ever have a malicious USB thumb drive, camera, microphone or anything else, it can sniff your Full Disk Encryption (#FDE) #password, for example.

By only having your keyboard and mouse plugged into the hat, and that connected to your computer via PS/2, it's isolated from all the other devices.

For more information on the risk, I'd suggest reading the security warnings from the #Qubes documentation.

https://www.qubes-os.org/doc/device-handling-security/#security-warning-on-usb-input-devices

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#QubesOS #infosec #GrowNostr #cybersecurity #hacking #electronics 
 Also, if you want to pay in Bitcoin or Monero, I'll try to get him on board.

Failing that, I'll buy his coins from him for cash, which basically nobody is going to turn down. 😆 
 I design a circuit board here and there at work. We use Altium Designer.

If I had spare time to tinker at home I'd use KiCad. It's good software.