Send Data back from Home Assistant through ESP-Now-Bridge to sensor node

u-fire / ESPHomeComponents

Components for Microfire sensors that can be used in ESPHome and Home Assistant.

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Send Data back from Home Assistant through ESP-Now-Bridge to sensor node #1

Closed Lukatus closed 3 months ago

Lukatus commented 3 months ago

Hi,

is it possible to send data from Home Assistant through ESP-Now-Bridge back to the ESP-Now-sensor? I'd like the sensor to know the state of a binary homeassistant entity, which prevents the sensor from entering deep sleep. How can I access these data at the sensor?

justind000 commented 3 months ago

Only sensor -> HA is currently supported. There has been quite a bit of interest in bi-directional communication, however it isn't on my list of things to do.

A bit of a roadmap would look something like this though:

the code for receiving ESPNow messages can be found in the bridge component, the 'sender' devices would need to implement this 'receive' functionality
the bridge would need additional MQTT logic to subscribe to all the topics and send out all received messages

So at a high level, it doesn't appear that complicated™, however I suspect in practice there will be a few bumps.

Lukatus commented 3 months ago

ah thank you anyway! Great work by the way. Do you have any other suggestion, how I can prevent the sensor from going into deepsleep so that I can upload new code? I want the sensor to be awake only for about 1-2 seconds. I dont think that will be enough for uploading

justind000 commented 3 months ago

Without knowing about your project, I would suggest using a pin if you have any available. Check if pinx is HIGH, if HIGH stay awake, if LOW go to sleep. This works well for development, but obviously not for updating a deployed device.