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Ukraine says it cracked open a Russian decoy drone used to fool air defenses and found Western parts inside
(www.businessinsider.com)
this post was submitted on 12 Nov 2024
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Yeah you can literally reprogram microcontrollers out of smart bulbs and use them to fly drones or guide missiles. General purpose CPU means general purpose CPU.
I was going to say "doubt" because I've seen various smart bulb development prototypes (ancient technology by now), but then it occurred to me that once you nix the parts that drive LEDs from AC, you got yourself a nice lil mc board. With some fancy soldering (better than anything I could do) you could probably get access to a couple extra pins. If you can get access to whatever reprogramming interface it has on just one, youve now got yourself a fligh controller. You'll need a radio, but I imagine Russia has something for that, or maybe they have something fancy with whatever the 2.4Ghz radio provides.
Then you need PWM signals for motor control and you need an accelerometer and gyro. Every phone and your grandmother has those. Program in your flight software to fly the drone the way you want with all the sensors and radios. Then you just need a battery adapter and escs for the BLDCs.
If you get a shipment of 10k bulbs and have a process for extracting it - you got up to 10k drone brains.
I actually cracked one open once a couple years ago, forgot which brand, but there was literally just a regular old ESP8266 module soldered onto the board. All you need is a USB to TTL serial adapter to reflash it, and then use a hobby knife to cut and isolate the GPIO pins you're going to use.
Edit: Better yet, if I was a sanctioned rogue state, I'd use what little PCB fab capabilities I have left to just have boards ready to go to drop in the controller from the bulbs. It'd just take seconds with a hot air station.
Yup. They've been doing this at scale by cannibalizing home appliances: https://www.indiatoday.in/world/story/russia-using-refrigerator-parts-build-missiles-western-sanctions-impact-on-economy-reports-2384642-2023-05-26 (Sorry for the shitty site, better sources were paywalled.)