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>magnetometer or IR photodiode that I could use to build a low-bandwidth communication channel Maybe I'm missing something, but why not go for something more s
by Rebelgecko 4y ago
>magnetometer or IR photodiode that I could use to build a low-bandwidth communication channel
Maybe I'm missing something, but why not go for something more straightforward like BTLE? There will be some hit to battery, but probably not that much, in exchange for a huge gain in convenience if you want to sync with your phone or whatever
- photoGrant 4y agoDid you say straight forward and bluetooth in the same sentence?!
- napolux 4y agojust yesterday (after yet another pairing problem) I was thinking that it’s amazing how bluetooth has been released ~20 years ago and it’s still a pain in the *ss to use
- Rebelgecko 4y agoYeah. I've used it in the past and it was fine (even on hardware that didn't have good software support). I can't imagine it would be any easier to try and send notifications via magnetometer
- fellerts 4y agoAgree, something like the nRF52832 with Nordic Semiconductor's BLE DFU would be awesome. This isn't a trivial change though (new PCB spin, lots of sofware porting). Additionally, the MCU he's already using comes with an LCD driver. AFAIK, small MCUs with a usable BLE stack + LCD driver are far and few between. You could add a dedicated slave driver for the LCD, but again, this is a bunch of work. I'd love to see this happen though!
- Markoff 4y agoYeah, BLE has hardly any consumption, my Amazfit Bip can easily last 30-40 days always connected with lots of notifications.