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Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
@heri16
In order to get true low power wifi, the esp8266 module will have to be put into LIGHT_SLEEP mode. This brings power consumption to under 0.9mA between DTIM beacons. However, this means that we have to implement UART with the hardware flow control pins (RTS/CTS), so that the espruino can wake the esp8266 when sending AT commands over UART. Another advantage is that the espruino pico can go to sleep too and wait to be interrupted on the RTS pin when the esp8266 has new data to send.
Has anyone found the flow control pins on the Esp8266 breakout board? Does the espruino libraries have RTS support for ultra low power UART?
http://tinker.yeoman.com.au/2015/03/08/reducing-esp8266-power-consumption-using-deep-sleep/