Precision Design Associates' 2.8 inch, PCAP module is a touchscreen solution offering best-in-class projected capacitive multi-touch functionality combined with a 2.8 inch LCD panel. With an onboard Atmel XMEGA256A3BU MCU, the module offers standalone operation based on a subset of functionality available from the Atmel XMEGA A3BU Xplained MCU board and Atmel mXT143E Xplained module.
The XMEGA A3BU microcontroller module is designed around the Atmel XMEGA256A3BU microcontroller. This microcontroller has a variety of features and flexibility, and provides a good starting point for development and evaluation of the PDA TM2801 touch module. The MCU directly connects to all of the module sub-systems, providing a capable full-featured platform for development.
The Atmel Software Framework ASF contains example projects targeting the XMEGA256A3BU MCU and its various features. This provides an excellent resource, in combination with the XMEGA documentation, for the user to become acquainted with the capabilities of the MCU. Of particular interest with this module, the ASF contains sample code for implementing the USB device interface available on the XMEGA256A3BU.
- Atmel XMEGA256A3BU MCU
- Projected capacitive multi-touch controller
- 2.8 inch LCD
- USB connectivity
- SD card
- Atmel maXTouch mXT143E touch controller
- Supports up to 8 touches
- Displaytech SDT028ATFT 2.8 inch LCD
- 320 x 240 resolution
- 20 ms typical response time
- SPI communication via ILI9320 driver IC
- Optional support for 18-bit parallel interface
- White LED backlight
- 1.2 mm soda lime glass