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Arduino selection (or other microcontroller) #5
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@L4g0 https://forum.arduino.cc/index.php?topic=432323.0 Aquí dan un par de opciones que parecen viables también, aunque por lo que veo la gente usa bastante la primera que pasé |
Yo diría, por lo usado que es en los círculos makers y del IOT, el ESP32: |
Arduino + BLE + (creo) lipo charger: https://www.seeedstudio.com/Blueduino-Rev2--Arduino-compatible-pius-BLE-CC2540-p-2550.html |
https://www.thingiverse.com/thing:2628277 This guy made a similar project using this Bluetooth Module: https://www.sparkfun.com/products/retired/14154 Give it a look, dudes |
Maybe the ATtiny85 is a good idea, small microcontroller. It does not have Wifi/BT though. |
I can provide an Attiny 85 with proggraming board for testing purposes and first prototypes. Check this guide if you want to learn how to program this microcontroller. |
Display + encoder will probably use all the pins available in ATtinny85 |
Yes, we can use some kind of mux, but idk. |
My approach would be:
Otherwise, challenges and problems arising from (2) will also affect (1) and it will be twice as hard to debug. |
Hi! I'm doing this exactly same project right now. I'm using an Arduino Leonardo and a bluetooth module. I don't now if the Esp3's wifi circuit is necessary and this module is actualy very big. Anyway I have both microcontrollers here, and once the project was already started with ESP32 I will also use it . My idea is to design a small pcb for it in the future to reduce the size, but it is not very important right now. Let's make progress on this project!! |
We will need an microcontroller small enough to fit in a wrist watch and capable of handling all the I/O need.
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