[ELECTRON] Unable to use Serial.println()

Getting Started
1

I am having serious problems developing my application and want to use Usb serial messages to debug my code. But I cannot get Usb Serial communication to work on my electron…

A simple Serial.begin(9600); Serial.println(“Hello world!”); won’t even show up in my terminal …

I tried particle serial monitor with the particle-cli but that gives no response.
I tried the USB terminal feature in particle dev but still nothing.

The cli does give me this

Found 1 device connected via serial:
/dev/cu.usbmodem1421 - Electron

but when I try to monitor it it just seems like its hanging or not doing anything… I have particel cli 1.17.0 and electron firmware 0.5.3

PS: the tinker-usb-debugging firmware does give me serial output…

[UPDATE] : When i flash my formware with --serial instead of --usb then it does work…

2

If that works, then so should other code.
Would you mind sharing your code?

3

Then it would be interesting to see the output of

particle flash --usb firmware.bin
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