Keypads
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Did a quick search and could not find anything about keypads.
Anyone who's worked on a project using MySensor and keypads?The idea I have is to combine a RFID and keypad.
@gadu
I use this keypad: http://www.aliexpress.com/item/ID-Access-Control-Reader/572198883.html
For the keypad and the RFID Data only 2 Arduino Input ports are needed (Wiegand Interface).
Arduino Lib: https://github.com/monkeyboard/Wiegand-Protocol-Library-for-Arduino3 additonal Inputs are required if you want to switch the LED collor, to activate the buzzer or to read the key with the bell symbol .
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@korttoma
Not a MySensors node. At the moment I have problems with reliability and range in my building with thick walls. Therefore I use Zigbee modules from Telegesis. Compared to a nRF24 device they are very, very expensive (~18€, http://www.greenwave-electronics.com/etrx357-p-108.html) but then very, very reliable and have a higher range.Using of the keypad is very easy with this Library. See Examples.
I forgot: Wiegand devices are using different bit lenght. A keypress here gives only 4 bits. Therefore a small change of the library was needed.
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