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clean up arduino node readme. Add hint re rate limit or rbe.

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Dave Conway-Jones
2018-05-13 17:26:32 +01:00
parent dca9dfccc1
commit a3d4f01587
5 changed files with 178 additions and 60 deletions
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hardware/Arduino/README.md
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@@ -26,9 +26,7 @@ Connects to local Arduino and monitors the selected pin for changes.
You can select either **Digital**, **Analogue**, or **String** input type.
Outputs the value read as `msg.payload` and the pin number as `msg.topic`.
It only outputs on a change of value - fine for digital inputs, but you can get a lot of data from analogue pins which you must then handle.
You can set the sample rate from `20` to `65535` mS.
It only outputs on a change of value - fine for digital inputs, but you can get a lot of data from analogue pins which you must then handle. For example you could use a `delay` node set to rate limit and drop intermediate values, or an `rbe` node to only report when it changes by a certain amount.
### Output Node