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Touch panel enables display to function with Raspberry Pi

30 Jul 2015  | Graham Prophet

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4D Systems and distributor element14 have introduced the 4DPi-24-HAT, a touch panel that enables the display to function with the Raspberry Pi without the need of a mouse or an alternate HMI device.

4DPi-24-HAT

4DPi-24-HAT is a 2.4in, 320 x 240 pixel fully HAT standard compliant primary display with resistive touch that plugs directly on top of a Raspberry Pi. It displays the primary output of the Raspberry Pi, which is normally sent to the HDMI or Composite output. The integrated resistive touch panel enables the display to function with the Raspberry Pi without the need for a mouse or an alternative HMI device.

The 4DPi-24-HAT is designed to work with the Raspbian OS and is powered directly off the Raspberry Pi's 40-way header requiring no external power supply and allows touch-based interaction with the Raspbian OS. The display has a typical framerate of 25fps, which can be increased with kernel compression. The display's backlight can be turned on or off using an on-board jumper or dimmed using PWM controls. The on-board EEPROM allows for quick identification of the 4DPi-24-HAT by the Raspberry Pi. The 4DPi-24-HAT is compatible with Raspberry Pi A+, B+ and Raspberry Pi 2 and is fully HAT Standard compliant.

"Our standard display modules used with the 4D Serial Pi Adaptor, as well as our 3.2in and 3.5in primary displays for the Raspberry Pi, have been very popular among the Raspberry Pi community and we are very excited to release our first fully HAT standard compliant primary display together with element14. We look forward to seeing all the different applications that the community will create with the 4DPi-24-HAT," said Markku Riihonen, products and business development manager, 4D Systems.

The 4DPi-24-HAT has been developed by 4D Systems and is exclusively available through Farnell element14 in Europe and on 4D Systems' Online Store.




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