I think we have found a good board to achieve that with the EA version of the one below:
With the gateway inside my house and a Mi jia outside 20 meters away, I’m able to get the data.
Here is a focus on the OLIMEX ESP32 gateway with ethernet:
- ESP32-WROOM32 module
- MicroUSB connector
- CH340 USB serial converter
- Built-in programmer for Arduino and ESP-IDF
- WiFi, BLE connectivity
- Ethernet 100Mb interface
- MicroSD card
- GPIO 20 pin connector with all ESP32 ports
- Dimensions: (50 x 62)mm ~ (1.95 x 2.45)"
Note, this antenna is not the original one but an upgrade
Please note that this board has been offered by Olimex.