4 ms·

Just the kind of advice and wisdom I was hoping to hear, thank you! What would your ideal pick of hardware components be? Cost is not a major factor, since the

Just the kind of advice and wisdom I was hoping to hear, thank you! What would your ideal pick of hardware components be? Cost is not a major factor, since the cost of manufacturing a high quality durable case and sourcing the other materials will probably overwhelm the cost of the electronics. Universal usability and battery life and rechargeability are quite important though. So no "different thinking" charging cable ports on the bottom, pfft!

Joel_Mckay 2y ago
> What would your ideal pick of hardware components be? In general, cheap 3.3v based devices just use disposable 2x AA battery with a reasonably good LDO regulator, as they do not burn a lot of power that 2000mAh can last a long time. For a Bluetooth device, I would just leave the USB features/port/cable off to save on the design cost, and the sanity of DIY folks going cross-eyed trying to get a 0.5mm contact-pitch plug soldered. lol The IMU chips all have trade-offs, but I usually prefer an i2c chip with interrupt event pin (wake-from-sleep or sample-ready interrupt.) Also, many modern gyro chips have pre-filters built right into the chip itself, and can save a lot of cycles/DSP mcu side. Not sure about the development state of the ESP32 Bluetooth library, but these chips are generally not known for their power efficiency or accurate a2d functions. If I recall, last time I chose a nordic semiconductor chip because of the power efficiency, and everything else was unavailable. Best of luck =3