One end of the 4-wire resistancescreen controller programboard is connected to the PC through USB, and one end is connected to the resistive touch panel through 4-wire (X+, X-, Y+, Y-) to realize touch control.It supports 4-point calibration, drawing test, scribing operation, supports left mouse button and so on. It can be widely used in measuring touch panels, touch one machine, query industrial computer, home appliance touch, tablet, computer peripherals, industrial control and other fields. The schematic diagram is as follows:
(1) CH554: Low/Full speed USB master/slave mode, Low-cost 8-bit E8051 MCU, 16K+1K, 6-channel touch key, ADC, etc.
(2) CH558: Low/Full speed USB master/slave mode, ADC E8051 MCU, 40K+4K, 4timer, 2SPI, LED control, etc.
Program offering form
Provide 4-wire resistive screen controller finished board;
Provide the main chip chipset of 4-wire resistive screen controller;
Provide secondary development technical services;