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Touchpad button 4X4 key board for pic avr arm stamp
Just released, our great new Touch Keypad. This compact inexpensive keypad, utilizes the latest in Capacitive Touch Sensing technology, to deliver an affordable and easy to interface unit. The unit is based on the ST Microelectronics STM8S105C4T6 Microcontroller and is delivered pre-programmed, complete and ready to run.
Our latest touch keypad, is both an ideal learning tool for capacitive touch sensing keypads, as well as a fully operational touch keypad that can be easily incorporated in a professional control system or microcontroller application.
1. Be Capacitive Sensing Touch Key with 16 KEY 4x4
2. Use +3.3VDC or +5VDC Power Supply
3. Display status of pressing keys by voice and LED that is on that key
4. When start supplying power into ET-TOUCH PAD 4x4, there is voice and LED is ON in the format of running light to notify user to know that the board is ready to operate.
5. Have 2 types of Key Code of P#R that is sent out to tell the status of pressing key. Firstly, it is Binary Code (BCD8421) through Connector 8PIN; in this case, Pin ST# and Pin P#/R display the status of pressing key or releasing key. Secondly, it is ASCII Code through Connector RS232-TTL(UART) with the fixed Baud Rate 9600; in this case, it sends ASCII "P" or "R" before the value of Key Code to notify user to know that it is the Key Code that is sent out because of pressing key or releasing key.
6. Has pad of Key Touch that is made from various materials. If it is transparent plastic, it should be 1-2 millimeter thin; on the other hand, if it is made of other materials, the thickness depends on the features and electric sensitivity of its.
7. Has 1 special Key that is used as normal key or Key Fun that is used with other keys (press 2 keys simultaneously)
8. User Manual => http://rapidshare.com/files/342010866/Manual_ET-TOUCH-PAD-4x4_Eng_.pdf
