Template: Pico LCD 0.96 Spec

From Waveshare Wiki
Jump to: navigation, search

Overview

Provide Pico C demo.

Specifications

  • Operating voltage: 3.3V/5V
  • Operating current: 40mA
  • Resolution: 80(H) RGB x 160(V) Pixels
  • Communication interface: 4-wire SPI
  • Display size: 21.70(H) x 10.80(V)mm
  • Display panel: IPS
  • Pixel size: 0.135(H) x 0.1356(V)mm
  • Driver: ST7735S
  • Dimensions: 52.00(H) x 25.00 (V)mm

Pinout

Pico-LCD-0.96-details-inter.jpg

Dimension

Pico-LCD-0.96-details-size.jpg

Working Protocol

0.96inch lcd module spi.png
Note: Different from the traditional SPI protocol, the data cable from the slave to the master is hidden since the device only has a display requirement.
RESX is the reset pin, it should be low when powering the module and be higher at other times.
CSX is a slave chip select, when CS is low, the chip is enabled.
D/CX is the data/command control pin, when DC = 0, write command, when DC = 1, write data.
SDA is the data pin for transmitting RGB data, it works as the MOSI pin of the SPI interface;
SCL works the SCLK pins of the SPI interface.
SPI communication has data transfer timing, which is combined by CPHA and CPOL.
CPOL determines the level of the serial synchronous clock at an idle state. When CPOL = 0, the level is Low. However, CPOL has little effect on the transmission.
CPHA determines whether data is collected at the first clock edge or at the second clock edge of the serial synchronous clock; when CPHL = 0, data is collected at the first clock edge.
There are 4 SPI communication modes. SPI0 is commonly used, in which CPHL = 0, CPOL = 0.