Q&A Livestream - December 23, 2024

[@TeleportFPV]

They were good times and fun videos for sure! All you guys got my into this thing years ago. What a treat it has been. Thanks I learned a lot.

[@sarahdaviscc]

What if the Brave FCs sold via Rotor Riot are surplus to requirements? Say they had a minimum order quantity to ensure consistent supply to Defence and they have so many surplus that they want to offload them.

[@chrisfpv5706]

everytime i buy a fc i feel ripped of , the chinees where already ripping everyone off wit the prices of the components ,, look at the pricing of a full blown motherboard for a pc then watch your 30by30 board again ,,

[@jiatan_fpv]

Yeah and the AT32 MCUs that were supposed to make the FCs cheaper are now more expensive than the STM32 ones, WTF..

[@jiatan_fpv]

Unfortunately due to things like bidirectional DSHOT it's not very easy to port to a different MCU family - DSHOT has tight timings and only possible to do in a performant way using timers that are programmed to load bits via DMA so that the main code can be run at the same time. STM32 family has those, but for a different MCU you would have to invent a way to simulate this. Maybe I2S on ESP32? But there are no ESP32 MCUs with 4 I2S channels.. RP2350 has programmable IO channels and would work, but clock speed isn't super fast and the second core is a different architecture - not a good thing for ease of porting. Oh, and you can't actually buy the chip yet, only the boards. The alternative is running DSHOT in software on one core of a dual core MCU like some ESP32 variants. It's all moot since the digital system alone costs $200 and saving 20 bucks on the FC won't affect the total cost of the quad noticeably.