- cross-posted to:
- technology@lemmy.world
- seattle@lemmy.world
- cross-posted to:
- technology@lemmy.world
- seattle@lemmy.world
Title says most of it. Spin electric scooters exited the Seattle market and abandoned their scooters all over the city and apparently they have a pi 4 in them!
This is such a terrible application. These things would drain their battery just running the pi and electronics. Why such a high power platform for such basic functionality?
This screams of free money flooding startups. Amateur hour.
putting prototypes straight into production is the “tech startup” way!
I’m not intimately familiar with the BCM2711 but I believe it’s a reasonable, albeit somewhat overpowered, processor for the application. It can be put into a variety of low power states and probably pulled out of sleep by various events like the GSM chip sending packets or accelerometer motion (frequently the peripheral chips have dedicated “wakeup” pins that you can wire to interrupts). It’s not the most cost effective option by far, there are sub $5 microcontrollers with multiple cores for handling communications and real time motor control concurrently but you’d need to hire someone like me for a few months @$200/hr to write the low level drivers and design the boards. The rpi lets random web-only devs fumble their way through hardware development using whatever GitHub Python libraries they can find. If you only need a hundred scooters it makes more sense to just yolo it and buy up the remaining supply of rpis to start your grift.
Great explanation. I’d be one of those web Devs.
Surely the drive motors use far more energy than the computer, and the computer doesn’t need to be fully powered on all the time.
Yeah they do. The device current issue is one of time. If they coded it properly they could keep the pi asleep at almost all times, but seeing as they used one in the first place I have my doubts.
Essentially it would make the scooter drain from just sitting vs being able to sit for weeks until a rider hops on.
It’s a lot cheaper than getting an EE to design you a more efficient bespoke solution.
Could just buy an ESP32 board instead, at least that doesn’t suck down power and need to boot Linux to function.
They probably could have used a Pico, certainly a zero instead of a 4