For hoverboard, I believe you may need a lot more than 10A, no? I’m using the HackJammer on a hoverboard motor and it draws significant amounts of current. Also, I dis-assembled a hoverboard and it has MOSFETs way over 10A, more like 60A+ (http://tsinghuaicwx.com/upload/cn/propdf/TTP95N68A.pdf). Also the boards were separate, and connected with cables, not dual-board. So to summarize, you probably just need two high power minimum 30A+ boards, with MOSFETs capable of 60A+, and connect them with a simple I2C cable to communicate.
Please note, the HackJammer needs a low voltage buck step-down re-design, the LDO will overheat at 36V. I’m extremely busy these days, haven’t had a chance to do that. For time being I got away with a small LDO heatsink, but that’s not a very serious solution.
Hall sensors have less precision that magnetic encoder, but it will run simpleFoc fine. Performance will probably degrade on low speeds due to less resolution. It all depends on your usecase.
As for the mosfets in the hoverboard mainboards, they are often around 70v 100a - the one I have that I can read the markings has STP110N7F6, and I have two boards without any markings on the mosfets, but I assume they are 60-70v around 100A as well
There has been some poor reviews of the ESP32 ADC. It’s the old “what you pay for is what you get”. It really depends on what you wish to achieve. ENOB - Effective Number Of Bits and noise does matter.
From what I gather the manufacture is trying to improve the ESP32 ADC, but having a radio and ADC in the same package is just difficult to achieve.
Maybe someone with extensive experience with these modules can comment on this ?
Yes, it can. I’ve tested it on another board. However the hackjammer assumes the Allegro chip and IIRC it will need a small rework. There was some difference about 5v vs 3.3v on the chip supply, don’t remember. It’s very minor but still a rework.
You are correct. Especially since the WROOM mini-boardlets come with a faraday cage which traps all EMR inside. Like, having your ADC inside a microwave oven. Have you ever tried to boil an egg inside a microwave oven? It’s a rhetorical question.