CP8400ATT

Data Acquisition - Touch Screen Controllers

CP8400ATT application field and working principle

The CP8400ATT is a touch screen controller designed for embedded application where a user can interact with the system through a touch screen. It uses a touch screen technology to detect a user\'s input with a simple 4-wire resistive touch screen, and supports a wide range of touch panels for error-free operation. The CP8400ATT supports a wide variety of I/O interface, including SPI, I2C, USB, UART, GPIO and more.

The operating principle of the CP8400ATT is based on the four-wire resistive touch screen technology. It measures the voltage on the resistive coating of the touch panel, and a user can input the signal by touching the touch panel with a finger or stylus. On the detection of a touch, the CP8400ATT calculates the coordinates of the user\'s touch, and sends the signal to the microcontroller or other I/O devices. It uses a layer of soft material on top of the four-wire resistive touch screen, which acts as a buffer layer, ensuring that the signal sent to the microcontroller is accurate and reliable.

The application fields of the CP8400ATT include industrial display applications such as HMI, machine control, medical device control, and home appliance control. This touch screen technology is extensively used in many production lines, for machine automation and user-friendly interfaces. In addition, the CP8400ATT is also used in the integrated control system of transportation systems, and the remote control system.

The CP8400ATT is simple to set up and can be integrated into many existing systems without any extra wiring. It is proven to be able to work reliably even in harsh environments, and can recognize and respond to a user’s input signals accurately, allowing the user and the system to interact in a simple, fast and error-free way. This technology is now widely accepted amongst many users, and is regarded as a perfect fit for many applications requiring a stable, reliable and user-friendly touch screen controller.