MicroPython Forum (Archive)

I do get something now but I still have to lay it almost completely flat just to see something, the blue potentiometer on the back is already fully open...

Any of you ever had the issues that the backlight on/off does work but nothing appears on the screen?

Although I bought it as a v3 but it looks light I got http://arduino-info.wikispaces.com/LCD-Blue-I2C#v1

awesome! thanks that did indeed fix it although I still don't understand why this toggles the blue led on the chip itself.

I'm using a Wemos D1 mini v2 and I'm trying to hook up a 4x4 keypad via a MM74C922N chip which sets a pin to low when a button is pressed. I figured I would use an interrupt to set a bool to True but the only thing that happens is it turns on the LED on the ESP chip... I'm new to the interrupt way o...

I'm using the SCT-013-030 which should have a 62 ohm build-in and is 1800:1 ratio based on http://webmeteobox.ru/docs/SCT013-030V.pdf I made my circuit based on the design below but with different resistors. http://myelectronichome.altervista.org/joomla/images/FotoPerGliArticoli/Circuito_per_collega...

It is indeed 230/240V AC but since my electric bill is quite high and I don't know why so I thought I would measure it. Since I'm not sure wetter to place it over the blue, brown or both I tried all but same difference in the readings. You clip the CT around the "live" conductor. That should be the...

It is indeed 230/240V AC but since my electric bill is quite high and I don't know why so I thought I would measure it. Since I'm not sure wetter to place it over the blue, brown or both I tried all but same difference in the readings.

Hey Guys, I hooked up four SCT-013 (-030 / 30A) with a CD4051BE to the ESP8266 (NodeMCU). The CD4051BE is only to expand the amount of analogue interfaces. I hooked it up to the 4 groups in my fusebox but I think I'm getting crap readings. Anyone any idea? You can find the values here: https://thing...

Awesome! thank you so much!

As soon as I have the time I'll port and publish it and later on try to add the twilight phases. The lunar phases might come in handy to set the lights when it's a full moon.

That would be awesome! Does is support twilight phases? and (even more important) would you like to share it?