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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.
@DrAzzy
My MAX1555's arrived in the mail. I've got one soldered into the prototype area, but I was looking over the spec sheet...
They cap USB charging at 100ma (as that's the cap on USB power, unless the device asks for the full 500ma). Does the Espruino ask for full power? I assume it does - if so, maybe I should connect to pin 4 (DC) instead of pin 1 (USB), that way it'll charge at 280ma.
Also, I may put a mosfet between the USB in and the MAX1555, so I can turn charging on and off with a GPIO pin. I'm only now starting to appreciate that SMT prototyping area...
Ooo... maybe I could wire the gate of the mosfet to the CHG pin (with a pullup and filter cap, ofc), and then I could pulse the pin low to initiate charging... and then the CHG pin would keep it low until it was done charging, then turn off the charger...