Here's a list of some things I (well claude/codex) have played with so far:

- Using an OBDII to USB adapter and reverse engineered Ford software I now have total control over my 2005 F150 and 2012 hybrid fusion. I actually used claude to help me do a deep system scan to check the battery health on the fusion before I purchased it. I even took claude on my test drives and it monitored O2 readings, RPM, braking parameters, etc. It put together a nice HTML report with graphs and everything and my mechanic looked it over and said it caught things he would have missed!

Here's a list of the stuff I've done in just the past few months!

- A ~$100 SDR and cc1101 to reverse engineer the protocols and control remotely all the cheapo RF switches I have controlling my lights around my house.

- Using the SDR it was also able to crack the encryption scheme on a no-name brand Chinese hose timer by doing man in the middle attacks. It had me wrap the thing in foil and put it in the microwave to act as a DIY faraday cage which worked wonderfully.

- Also with the SDR it was able to create software to determine the position of all the planes in my area, decode FM radio stations, the emergency weather radio stations, decode readings from a temperature/humidity sensor that I long since lost the base station for, took a crack at the garage door opener (still WIP), and even wrote some code (untested) that supposedly will read images broadcast from a Russian satellite periodically.

- Write software to control the XY motors, IR lights, IR filters, speakers, and mics on some cheap security cameras I bought and run images through a model to detect coyotes

- Codex did some digging and found SMLIGHT SLWF-01Pro, which is pretty much an esp32 with a uart in a convenient format to fit in my Midea mini split, and wrote software to control it and pull service codes and sensor readings. If I ever have issues with the unit I should be able to pull compressor voltages, rpms, fan speeds, etc.

- Reverse engineered the protocol for a DAQ.

- Had Claude write some advanced control logic to control an electric wheelbarrow to have an entirely electrical parking brake using FOC on the brushless motors. Also it implemented something like ABS to prevent the wheels from slipping and causing washboarding on my gravel paths.

- Created software to remotely control and monitor a PocketPCR I bought years ago.

- I found an old Rhode & Schwarz signal generator and just got an RS232 to usb cable in the mail so my next project will be having codex reverse engineer that unit and running automated analysis using an oscilloscope which I also had it write software to control.

I think LLMs open up a great new vector for jailbreaking old devices or firmwares that no longer get factory updates.