How To Control Relays With A PICO

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Relays can be very complex devices and if not handled correctly, a lot of problems and danger can be found! Chris covers a lot of the basics about controlling relays with Micropython and the Raspberry PI PICO microcontroller. Stand alone relays and relay modules are covered.
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Опубликовано:

20 авг 2024

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Комментарии : 17

@johnreese8278 3 месяца назад

I had no idea of the complexity. This was excellent information and quite fascinating.

@MakingStuffwithChrisDeHut 3 месяца назад

Hi John, Unfortunately, yes, controlling relays is complex and in my humble opinion it really shouldn't be. I think a lot of the complexity with modules is that they provide ZERO documentation to understand their circuitry making it very difficult. I am glad you found the information fascinating and useful. Cheers! Chris

@quaternion-pi Год назад

Lots of practical, useful info - and explained clearly. Thanks!

@MakingStuffwithChrisDeHut Год назад

Hi Quaternion, Glad you liked it and found it useful! Cheers Chris

@oraflores Год назад

Once again, a very well explained lesson. Thank you.

@MakingStuffwithChrisDeHut Год назад

Greetings Oraflores, Thanks for the kind words. Cheers! Chris

@WilliamBurlingame Год назад

I built a "smart mains outlet" with a electomechanical relay. When I built it, I used an RPI Zero with an IR device to activate the relay. I use the system to turn on my computer screens and desk lights when it detects my presence. When the Pico became available, I replaced the Zero with a Pico. Until recently, It has worked very well. Now the relay is stuck ON. The relay is a HiLetgo 5V One Channel Relay Module Relay Switch with OPTO Isolation High Low Level Trigger that I bought at Amazon. I bought a couple of optical relays, but I haven't replace the failed relay. I can see the LED on the relay toggle as the unit is turned on and off.

@MakingStuffwithChrisDeHut Год назад

Hi William, By chance have you checked the input signal voltage at at the module? It could be that the PICO's output pin may not be providing either enough voltage or current. I have had that happen on both PIs and PICOs. With the PICO, I have just switched to a different pin and all was good again. Cheers! Chris

@WilliamBurlingame Год назад

@@MakingStuffwithChrisDeHut The relay stays closed even if I remove power from the Pico. I assume the relay contacts are welded closed since the connection is normally open.

@alanswackhamer4645 10 месяцев назад

thank you. you mentioned a diagram of the relay wiring with an external power supply, where can i find it? thank you.

@MakingStuffwithChrisDeHut 10 месяцев назад

HI alanswackhamer4645 In the description of the video there is a link to the files for the videos. Cheers! Chris

@toolzshed 10 месяцев назад

Awesome 🤘🏽😊

@MakingStuffwithChrisDeHut 10 месяцев назад

Thank you! Cheers! Chris

@jasonkasper505 Год назад

You know how you can make your channel more popular?.. blow stuff up

@MakingStuffwithChrisDeHut Год назад

Good morning Jason, I like your idea, Mythbusters did a great job doing that for many years. Perhaps you have some specific suggestions? Cheers! Chris

@jasonkasper505 Год назад

Start with a guitar

@MakingStuffwithChrisDeHut Год назад

@@jasonkasper505 Hmmm, interesting. I know you are a musician who plays guitars. Why would you want to destroy such and instrument? In order to fit within this channel and topic, how might you suggest I do that with a Raspberry Pi PICO? Cheers! Chris (BTW, you better be enjoying your vacation!!!!)