~martijnbraam/mosquitto-board

ac46ace5dce8d0706691d4129402c6befd985159 — Martijn Braam 1 year, 6 months ago 04182b5
Add readme
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# Mosquitto board

This is a Kicad 7 project for the Mosquitto board.

Features:

* Based on the ESP8266 ESP-12F module
* On-board CP2102 usb-to-serial converter for programming and debugging
* On-board SHT30 temperature and humidity sensor
* Header for a 3 pin screw-terminal for hooking up onewire sensors
* A pmod-i2c and pmod-spi header for attaching sensor breakout modules
* On-board battery charger for Li-ion or Li-Po cells (protected cells needed)
* Deep sleep timer circuitry included
* ADC pin is hooked up for low-power battery level monitoring

Things that need fixing for the next revision:

* Fix the backfeed diodes between the ESP and the CP2102, these need to be bridged for programming now
* Add a battery protection chip
* Include an auto-reset circuit for programming
* Decouple the heat generated from the usb-serial chip from the on-board temperature sensor better
* Add a pin header for the serial port