# Relay and coin acceptor

**URL:** <https://forum.arduino.cc/t/relay-and-coin-acceptor/952450>\
**Category:** Programming\
**Created:** [January 28, 2022, 11:19am UTC](https://forum.arduino.cc/t/relay-and-coin-acceptor/952450 "2022-01-28T11:19:20Z")\
**Posts on this page:** 4\
**Page:** 1

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**Author:** ![internat](https://avatars.discourse-cdn.com/v4/letter/i/ba9def/32.png) [@internat](https://forum.arduino.cc/u/internat)\
**Post date:** [January 28, 2022, 11:19am UTC](https://forum.arduino.cc/t/relay-and-coin-acceptor/952450/1 "2022-01-28T11:19:20Z")

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Hello I have one problem and please help me. I have a universal coin receiver and am plugged in with a timer. When I toss the coin, the timer works perfectly and writes the corresponding value. But I have one problem when I press the button to turn on the power to the relay, it increases the timer time. That is, the button also gives a boost and time is added.How do I distinguish between a relay pulse and a coin receiver pulse?

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**Author:** ![killzone\_kid](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/killzone_kid/32/1098074_2.png) [@killzone\_kid](https://forum.arduino.cc/u/killzone_kid)\
**Post date:** [January 28, 2022, 11:33am UTC](https://forum.arduino.cc/t/relay-and-coin-acceptor/952450/2 "2022-01-28T11:33:09Z")

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> [@internat](#):
>
> I have one problem

I have 99 problems  
Missing code is one

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**Author:** ![blh64](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/blh64/32/605986_2.png) [@blh64](https://forum.arduino.cc/u/blh64)\
**Post date:** [January 28, 2022, 12:47pm UTC](https://forum.arduino.cc/t/relay-and-coin-acceptor/952450/3 "2022-01-28T12:47:41Z")

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Please take a moment to read this: [How to get the best out of this forum - Using Arduino / Installation & Troubleshooting - Arduino Forum](https://forum.arduino.cc/t/how-to-get-the-best-out-of-this-forum/679966)

It will help others help you. After reading it, please post your code using code tags.

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**Author:** ![system](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/system/32/1140315_2.png) [@system](https://forum.arduino.cc/u/system)\
**Post date:** [July 27, 2022, 12:47pm UTC](https://forum.arduino.cc/t/relay-and-coin-acceptor/952450/4 "2022-07-27T12:47:44Z")

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