ESP-NOW might be suitable, as it requires less power than regular wifi. From the docs: “ESP-NOW is a kind of connectionless Wi-Fi communication protocol that

ESP-NOW might be suitable, as it requires less power than regular wifi. From the docs: “ESP-NOW is a kind of connectionless Wi-Fi communication protocol that is defined by Espressif. In ESP-NOW, application data is encapsulated in a vendor-specific action frame and then transmitted from one Wi-Fi device to another without connection.” https://docs.espressif.com/projects/esp-idf/en/latest/esp32/api-reference/network/esp_now.html https://docs.espressif.com/projects/esp-idf/en/latest/esp32/... Edit: this video discusses power consumption of esp now: https://youtu.be/6NsBN42B80Q https://youtu.be/6NsBN42B80Q