This page contains technical information about version 1 of the LCD-Touch-Boosterpack, marked 1/4/2012.
Technical information about the board:
- The board is a standard size Boosterpack for the MSP430 Launchpad which can snap onto the Launchpad. The board comes with female headers soldered on.
- There are 4 capacitative touch button areas below the display, marked A, B, C and D. These are connecte to pins P2.2, P2.1, P2.4 and P2.3 respectively.
- There is a silkscreen error on the board. Where it says P1.4, it should say P2.0. Example code for IAR is available on https://github.com/mobilars/LarsLCD . If you have requests for new features or input, please use the 43oh Forum topic for the display to give input.
- The board has a reset circuit that resets the display after powerup.
- The boards are based on the Powertip PE9665WRF display with the ST7579 controller. The screen is small (28x19mm viewable area) and requires little power (0.2mA). It is SPI-based, has backlight and has 96×65 dots. It’s a perfect display if you need a cheap, small and low-power display for your next project.
- The display can be used in parallel with other SPI devices such as the Anaren RF Booster Pack, as long as each devices has it’s own Chip-Select signal and you do not send signals to two devices simultaneously.
- The datasheet for the display can be found here.
- The datasheet for the controller can be found here.
- The backlight is not on by default on these boards. You have to solder a 150 ohm resistor onto the board to turn it on, or attach a button and a resistor in series.
- The solder used to attach the components to the board is led-based and is not RoHS compliant.
- These boards are meant as development kits as part of your electronics projects and for testing purposes. They are not complete products in themselves.
- This is a relatively cheap display, which also limits the quality, but I have found it works very well for a number of projects.
- The backlight connection is rated at 3V, and if you use it with a standard Launchpad voltage, you should add a resistor (for example 150ohms) between two points on the board, marked with a resistor-symbol in the picture below. You also need to connect two adjacent points, marked with a red line on the picture. This connection will turn on the LCD backlight permanently.
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The pin connections are:
- VCC – Positive supply
- P1.0 - Not connected
- P1.1 - Not connected
- P1.2 - Not connected
- P1.3 - Not connected
- P1.4 - Chip select on LCD
- P1.5 - Clock
- P2.0 - Not connected (Marked as P1.4 in silkscreen)
- P2.1 - Touch pad B
- P2.2 - Touch pad A
- GND – Ground
- P2.6 - Not connected
- P2.7 - Not connected
- TEST - Not connected
- RST - Connected to reset circuit to reset LCD on powerup and reset of MCU
- P1.7 - Data input on LCD
- P1.6 - Not connected (LCD does not have output)
- P2.5 - Not connected
- P2.4 - Touch pad C
- P2.3 - Touch pad D
The picture below shows the schematics of the board:
The picture below shows the board layout: