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Sample for Gauge has no Gauge


#1

In the doc at
https://docs.blynk.cc/#widgets-displays-gauge
there is a link to a sketch which has nothing to do with using a Gauge.

It is also linked from other items such as LCD etc.


#2

you are right :wink:


#3

It’s a test - to see if anyone actually reads the documentation :wink:

Pete.


#4

image

As for the gauge… I use it on this example


#5

Actually… The Blynk Blink sketch is an essential base sketch, using Blynk’s direct GPIO pin control that can relate to most any widget.

Just load it up, place a gauge on your App set to an analog pin and hook up a POT to the same analog pin… done.

Or you can place a Gauge and a Slider, set both to the same vPin and watch the gauge move in accordance to the slider… meanwhile, using another example like the Get Data example as a base, you could then use a BLYNK_WRITE(vPin) function to see the same slider action in the sketch for dimming an LED or something.

The gauge on a digital pin might even recognise a PWM signal on that pin?? I haven’t tested that… EDIT nope, in direct GPIO mode, it is meant for Analog pins only. But with virtual pins it can display any integer value in it’s range.


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