Hi,
I am writing to read sensor value and display it in the app. I completed all the steps when i run blynk-ser.bat -c -COM4 there is an error. I have attached the image
Did you get it working?
If not did you try launching the CMD Prompt as Admin?
Not much experience here, but I have read a fair bit and remember seeing this.
1 Like
Yes, i did
Still the same error
Help Center files…
http://help.blynk.cc/how-to-connect-different-hardware-with-blynk/arduino/usb-serial
And don’t forget the forum search function as well…
I am using a MQ135 sensor, it should display value ranging from 200ppm. Now when it is sending a notification or an email i want to include the value along with the message. How should i include.
It comes down to combining strings.
Blynk.notify(“Message”);
After that message i want to display the current value of the sensor