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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.
@n00b
Has anyone ever successfully used a 4x4 switch matrix on ESP8266? Since ESP8266 doesn't support "input_pulldown" on its pins in Espruino, the module from http://www.espruino.com/modules/KeyPad.js doesn't work. Is it possible to modify that module to use "input_pullup" instead?