MiniDisplay Cape
Contents
Descriptions
The MiniDisplay Cape provides a 128x128 color graphics LCD. The LCD is driven via a 3 wire, 9 bit SPI interface.
Revision Changes
Revision A1 Initial release of MiniDisplay Cape.
Software Support & Compatibility
Framebuffer Kernel Driver
SPIDev Driver
The generic BB-SPIDEV0-00A0 device tree entry shipped with the stock Debian image for the BeagleBone Black can be used to interface directly with the LCD from userspace. To load the device tree:
# echo BB-SPIDEV0 > /sys/devices/bone_capemgr.*/slots
- Example Code for MiniDisplay Cape
# tar zmxvf Minidisplay-example.tar.gz # cd minidisplay-example # make # ./minidisplay-test
SPIDEV Example with BMP Support
Mark Yoder has created an example application using the SPIDEV interface that also is able to display a bmp file. source code is available at:
Specifications
Followings are some specifications of the MiniDisplay Cape:
Mechanical Specifications
| Size | 2.15" x 2.825" |
| Layers | 2 |
| PCB Thickness | .062" |
| RoHS Compliant | Yes |
Display Specifications
- Datasheet from CrystalFontz
- Resolution 128x128
- Controller Sitronix ST7735
Signal Usage
| Power | VDD_3V3EXP |
| SPI | |
| SPI0_CS0 | |
| SPI0_D1 | |
| SPI0SCLK | |
| RESET Pin | GPIO1_17 |
Distributors
Please visit Where to Buy for a list of distributors who carry BeagleBoardToys' capes.
Product Images
