Keypads

[gadu]

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.

[Xander]

@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-Arduino

3 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 .

[gadu]

Wow cool! I'll look into that one!

[korttoma]

@Xander are you using this on a MySensors node? Would you mind sharing the sketch?

[Xander]

@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.

[klim]

I'm actually working on a mySensor KeyPad node, but currently i'm struggling with a generic solution to read/write eeprom configurations controlled by the gateway. Maybe i'll ask for help in this forum in near future for future.