On: Saving power on an ESP8266 web server using delays

[pca006132]

If I remember correctly, ESP chips are not really power efficient comparing with other alternatives. And if you want to save power without sacrificing performance, you should do things like sleep and wait for interrupt.

[dividedbyzero → pca006132]

Can you recommend a more efficient alternative that is reasonably hobbyist-friendly?

[pca006132 → dividedbyzero]

not sure about wifi, but for BLE I think people generally use nRF controllers, there are modules with builtin antenna that you can use directly and are not too expensive.

[dvh → dividedbyzero]

Something with camera and wifi that costs $6 (like esp32-cam)