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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.
@user7114
Ok, Serial1.available() reads 0(zero) on the I2C LCD 4x20 display when the Espruino
is not connected to the USB. I will give it more run time testing.
Note: I am reading "Serial1.available()" every 5 seconds.
Note: The I2C LCD display comes in extremely handy for troubleshooting an
"unconnected" Espruino! (For $10 USD it can't be beat anywhere)
http://yourduino.com/sunshop2/index.php?l=product_detail&p=332
"sorry for the plug"