GPIODM-KPLCD演示板主要属性有（2）8 位和（2）16 位 GPIO 扩展器，4x4 键盘，2x16 LCD，它主要用于接口，前面板控制器，LCD。The GPIO Expander Keypad and LCD Demo Board is designed to demonstrate the use of the MCP23S08/17 (SPI interface) and the MCP23008/17 (I2C interface) devices in a keypad and LCD example. The MCP23X17 (16-bit) devices interface to a 2x16 LCD module and the MCP23X08 (8-bit) devices interface to a 4x4 keyed matrix.Features:
Demonstrates the use of MCP23X08 and MCP23X17 devices for LCD and keypad applications
Test points allow for easy monitoring of SPI and I2C buses, as well as the keypad and LCD interface to PIC
ICSP header for the PIC? microcontroller allows users to customize firmware to further evaluate the MCP23X08/17 devices.
Can be powered from a 3.0V to 5V DC power source (connected to the +5V and GND test points)
#板卡评测
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2013-12-24
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