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WSAL20429 – 7inch DSI LCD (C)/en

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Documentation notice: This technical documentation was independently rewritten from an archived supplier source. Check technical details and commands against the product version and manufacturer documentation before use.

Summary

The 7inch DSI LCD (C) is a capacitive touch display with an IPS panel, 1024×600 resolution and up to 60Hz refresh rate. It is driven directly via the Raspberry Pi's DSI interface and supports multiple Pi models as well as current Linux systems.

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Technical overview

  • Resolution: 1024×600, 7-inch IPS panel with five-point capacitive touch
  • Interfaces: DSI (DSI1 recommended), I2C1 for brightness control
  • Compatible systems: Trixie, Bookworm, Bullseye, Buster
  • Input voltage: standard 5.00 V (range 4.75–5.30 V)
  • Operating temperature: 0–60 °C; storage temperature: -10–70 °C
  • Connection to Pi5/CM5/CM4/CM3+/CM3 via the 12cm DSI cable to the 22-pin DSI1 port
  • Connection to Pi4B/3B+/3B/3A+ via the 15-pin FPC cable to the Pi's DSI port
  • Software setup under Trixie/Bookworm: add dtoverlay=vc4-kms-v3d and dtoverlay=vc4-kms-dsi-waveshare-panel,7_0_inchC,i2c1 to config.txt
  • Under Buster/Bullseye the driver can be installed manually or a pre-installed image can be used
  • Brightness can be adjusted graphically through screen settings or via terminal commands

Commands and examples – verify before use:  

dtoverlay=vc4-kms-v3d
dtoverlay=vc4-kms-dsi-waveshare-panel,7_0_inchC,i2c1
disable_touchscreen=1
sudo bash ./WS_xinchDSI_MAIN.sh 70C I2C1
sudo reboot

Notes and version constraints

  • Exact commands and configuration entries are version-sensitive; system updates may overwrite previously installed driver files.
  • When changing the motherboard model (e.g., from Pi4 to Pi3), the driver must be reinstalled.
  • The correct DSI interface (DSI1 vs. DSI0) must be selected according to the Pi model; incorrect selection leads to display errors.
  • Long-term storage at high temperature and humidity may permanently damage the display panel.
  • Insufficient input current below 0.5A can cause startup failures or display abnormalities.
  • Switching from I2C1 to I2C0 requires soldering work and rewiring; this should only be performed by experienced individuals.

Source and revision record

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