• ChrisM263 commented on quartarian's instructable Raspberry Pi Garage Door Opener10 months ago
    Raspberry Pi Garage Door Opener

    What is the difference between your relay module and this one? other than the obvious 2 additional channels?http://www.microcenter.com/product/437826/4_Channe...Can I use it in the same fashion as you have without the need of additional power sources or other parts? Yours seems so simple, but I read others who used this part had to provide additional transistors and what not.

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