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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.
@Gordon
Hi,
The Espruino 1v4 regulator is a Torex XC6202. The datasheet is linked - it'll do 150mA max, so it's possible it'd work with the ESP8266 and a big capacitor, but it could be a stretch.
I'd be really interested to see how you get on though.
The Pico is using the Microchip MCP1703T - unfortunately it's not pin compatible, but it has quite good quiescent current and is happy at 250mA normally.