floor-heating-proportional-valve

!!! BETA !!!! Feel free to help

A smart DC proportional heating valve actuator

Board : custom (~8.8$) with :

• ESP-C3-01M
• Motor driver : L9110s
• Distance sensor : IR optocoupler (ITR8307)
• LDO regulator : AMS1117

3D printed proportional valve actuator

Print actuator

Buy a motor : GA12-N20-M3 15rpm 3V ~3.5 $

If you do not have M30x1.5 valve, look at adapters

Done :

• Esphome compilation with ESP32-C3 : only "esp-idf" framework works with "platformio_options: board_build.flash_mode: dio" fix
• Validate motor torque (can move 5mm), endstops at 90mV
• Validate power input AMS1117-3.3V
• Test proto board with external motorized valve (same motor and concept)
• Validate opto sensor 1-5mm
• Working openscad enclosure with sliding cursor to get IR-opto distance

Contribute :

You can join easyeda project if you have skills in PCB creation

https://oshwlab.com/nliaudat/floor-heating-valve

make another version (version management) for each step in dev

Please check todo list

Licence:

• Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International (CC-BY-NC-SA)
• No commercial use