Outside World Voltage Detector Interface / GPIO / Arduino

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This video will describe the workings of a voltage detector interface to a microcontroller using the GPIO pins. This isolated interface voltage range is 5 volts to 240 volts AC or DC.

HCPL3700 Datasheet:

Telephone line ring detector using the HCPL3700:

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Thanks for showing off the HCPL3700. I immediately ordered some :-)

flemmingjacobsen

Very handy, universal and safe. Thanks!

martin.winkelhofer

And good vid, 0033mer. Concise content, well explained. Thanks from Waterloo, Ontario.

darinwhite

Never knew about this IC before. Thanks for the video

sayantanmaiti

Thanks for sharing another interesting chip. Love this channel.

lasersbee

As usual the excellent theory and details, such as the reference to the bridge rectifier diodes acting as Zener diodes limiting the voltage for the smoothing capacitor. I do recall when I was in telecommunications many years ago that the ring voltage frequency was 17 Hz. Not sure if this has changed or maybe different in Canada. I am in South Africa and we followed the British Post Office Standard at that time.

evertspies

thats a handy IC, thanks for showing it.

TheDefpom

You explained this so well... Thank you.

joshhaughton

Great project. I want to build it on my breadboard. I see you have the buzzer on pin 13 via a 1K resistor and a transistor. Which transistor are you using?

thecrispyfrog

Do you have to take the 65% of the DC voltage? I see that when is AC but not sure why you will do that with DC. Great chip and thanks for “discover” it fir your subscriber. I only wish you will use C++ instead of Forth.

jbravovideos

Does anyone know of a portable ascii video terminal “vt-100” type interface to use with “in the field” forth controlled atmega328’s?

nixnocent

1v to 220v ac/dc input will give 5 volts out, and 0 volts give 0-volt output am I right?

seyedmarashi

hi, good lecture, you can add to the title of the video the IC name so anyone that searches for it will be suggested with your explanation

ronen

were in our great country are you, I am in Ontario.

samjones

Outside World Voltage Detector Interface / GPIO / Arduino

Outside World Voltage Detector Interface / GPIO / Arduino

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