BeagleBone LCD3

Descriptions
The BeagleBone LCD3 Cape provides a portable LCD solution with touchscreen capability for BeagleBone boards. The 3.5" TFT LCD screen, attached to the topside of the board, can display up to a resolution of 320x240 and is a 4-wire resistive touchscreen. The board is equipped with seven switches located at finger-friendly positions. These switches include power, reset, and five user switches, which are mapped to different GPIO signals. The backside of the cape is where a BeagleBone can be mounted.

FAQ
Please visit our Frequently Asked Questions (FAQ) page for additional help.

Revision A2
Stand-alone backlight circuit for LCD panel is added. EHRPWM1A signal (J2.14) is now used to control the backlight circuit. User LED control signal is changed to GPIO3_19 (J2.27). The Enter button is mapped to GPIO0_3 (J2.21).

The PCB revision is also changed from BB-Bone-LCD3-PCB-02 to BB-Bone-LCD3-PCB-03.

Revision A1
Initial release of BeagleBone LCD3 Cape

Software Support

 * BeagleBone LCD3 Cape revision A1 is supported by Angstrom release 06-18-12 onward.
 * BeagleBone LCD3 Cape revision A2 is supported by Angstrom release 10-31-12 onward.


 * Major BeagleBone image releases can be downloaded here.
 * Intermediate BeagleBone image releases can be downloaded here

Please follow the instructions here to write the image file to your SD card on a Windows machine.

Getting Started
Required setup:
 * A BeagleBone LCD3 Cape
 * A BeagleBone (with supported software)
 * A 5V DC power supply (we recommend 5V - 2A)
 * A stylus (optional)

Following the instructions below to start using your BeagleBone LCD3 Cape:
 * 1) Mount the BeagleBone to the connectors on the bottom side of the LCD3 Cape.
 * 2) Make sure the SD card using with BeagleBone has image that supports LCD3 Cape.
 * 3) Plug in a 5V DC power supply to the DC connector on the BeagleBone.
 * 4) Following screens will be displayed on the LCD screen:
 * 5) * Angstrom log-in prompt
 * 6) * Auto Calibration utility (displays only on the first time)
 * 7) Follow the instructions given by the Auto Calibration utility to calibrate the LCD3 touchscreen.
 * 8) After calibrated, the Angstrom desktop will be displayed on the LCD screen.

You can start using the board.

Specifications
Followings are some specifications of the BeagleBone LCD3 Cape:

Signal Usage
The BeagleBone LCD3 Cape uses 39 signals including:
 * VDD_3V3EXP
 * SYS_5V
 * DGND
 * PWR_BUT
 * SYSRESETn
 * EHRPWM1A
 * GPIO1_16
 * GPIO1_19
 * I2C2_SCL
 * I2C2_SDA
 * GPIO1_17
 * GPIO3_19
 * GPIO3_16
 * GPIO0_3
 * AIN0
 * AIN1
 * AIN2
 * AIN3
 * GPIO0_7
 * LCD_VSYNC
 * LCD_HSYNC
 * LCD_PCLK
 * LCD_EN
 * LCD_DATA[0..15]

Distributors

 * Boardzoo (USA)
 * Arrow Electronics (US)
 * Digi-Key (USA)
 * Mouser Electronics (USA)
 * Special Computing (USA)
 * Tigal (Austria)

System Reference Manual

 * Latest

BeagleBone LCD3 Revision A2
To download all files at once please click here
 * Bill of Materials
 * Manufacturing Files
 * Schematic (PDF)
 * Schematic (OrCAD)

BeagleBone LCD3 Revision A1
To download all files at once please click here
 * Bill of Materials
 * Manufacturing Files
 * Schematic (PDF)
 * Schematic (OrCAD)