Banggood

Produit de qualité, bien emballé, je recommande

Nice Keypad, 12 keys will be served by one analog input line only. An additional IRQ signal would be helpful. Might be added in a future improved version perhaps?! I generated it by an opamp (comparator) which goes low if there is an output from the Keypad.

Is working well, i tested it with Arduino, you`ll save a lot of inputs, but if you wanna use it in a box, will be a hell of a work to make the mask :D

Does what it's made for, produced fine, arrived in good condition. One thing could have been solved better: a 4th contact, used for interrupt at the Arduino - so you have to do polling...

Module reçu très bien emballé, reste à lui trouver une application et à fabriquer un cache

Works exceltent, i wished i could be the 4x4 model here too!

Excelent keyboard! Allows the use of just one line and also the possibility of remote use through a current loop circuit just over 2 wires

Works great !

good

Works great with Arduino. Easy to interface.