Tech Note 110 - ESP32's using low cost RF links
A pair of ESP32's are used together with low cost RF modules (Transmitter and Receiver pair) to provide an RF link with a rnage of up to 150M range.
You can employ ASK protocols to provide further improvements to the link integrity and utility.
Products: https://www.banggood.com/Wemos-TTGO-T...
Products: https://www.aliexpress.com/item/RF-wi...