Soil probe rf 433mhz or Lora

[1technophile]

@Refuge

The miflora or xiaomi flower care seem to only work about a couple of meters away…

25m for mi flora from my measurements (with direct view between mi flora and ESP32 with OMG):

ESP32 BLE Range

@Refuge

Ideally i’d like to have less wifi devices connected but a bunch of cheaper sensors (hopefully like this one) reporting back to a rf hub for example.

Here is a post that can interest you:

Good gateway and protocol for a custom 433mhz sensor build

Yes LORA would be interesting - I have some Lora ESP32 boards, and I think I can see how I’d get that working with your new OMG release. Nice update I had another go with the 433mhz setup tonight and found your https://github.com/1technophile/low_power_sensor example using rc-switch to send a value. I’ve got that running on a 8mhz 3.3v arduino mini, powered by an 18650 battery. Some quick testing tonight was successful and I was getting just over 100m range through to the Sonoff Bridge …

If you want to be sure of the range I will definetly go for a LORA solution.
You can combine an MQTT gateway based on ESP32 and a node based on a moteino or equivalent.
Nevertheless it is a solution that will require more DIY work compared to basic 433mhz protocols.