alexlda
September 29, 2019, 7:55am
1
Good morning all !
I am a user of HASSIO for several months and I plan to be able to control my shutter with HA.
I bought a dual relay card with an EPS8266 module to control my shutter.
I managed to flash the EPS8266 card but could not drive the GPIO pins.
I help myself this for the code.yaml :
tom_l
September 29, 2019, 1:56pm
2
You might find some help in this post:
Hi all,
I’m posting my integrations with a 4 channel relay board which is both cheap and easy to configure.
Board can be found here link to banggood
It hosts a detachable ESP-01 (8266EX) with 1M memory.
[IMG_3810]
issue is that the ESP8266 is not using GPIO pins to trigger the relays, an additional processor is on board to do that called an STC15L101EW
From the datasheet it turns our that this chip uses UART to communicate with the ESP8266.
So steps to get this working with esphome.
g…
Egglec
September 29, 2019, 2:10pm
3
Thats a great idea, a UART GPIO expander, i have been using I2C expanders with some ESPhome projects and if the node reboots the switch all turn off and on, it appears that this expander will keep it’s state maybe?