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4-wire resistive touchscreen - 240 x 320 resolution - Controller with built in video RAM buffer - 8 bit digital interface£¬ plus 4 control lines - Uses digital pins 5-13 and analog 0-3. That means you can use digital pins 2£¬ 3 and analog 4 and 5. Pin 12 is available if not using the micro SD - 5V compatible£¬ use with 3.3V or 5V logic - On-board 3.3V 300mA LDO regulator - Support 2GB micro SD TF card