Yes, you can swap between I2C and Serial 'on the fly' in Espruino without any trouble - but as @Wilberforce says it's unlikely that other devices you connect to will be as forgiving :)
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.
Yes, you can swap between I2C and Serial 'on the fly' in Espruino without any trouble - but as @Wilberforce says it's unlikely that other devices you connect to will be as forgiving :)