Hello I have a TX20 anemometer and I have programmed my Arduino to read data from it with the help of this blog: La Crosse TX20 Anemometer Communication Protocol – john.geek.nz Arduino does read and decode the messages just fine, however, one problem arises often. According to the common sense an…

Pull up or pull down resistor?

slipstick April 22, 2018, 7:15pm 9

I've never seen a TX20 or a datasheet for it. But Google shows several circuits from people who claim to be using it successfully. None of them seem to use a pullup resistor.

Steve

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Pull up or pull down resistor?

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