VIK Bare Display adapter

February 29, 2024 ยท View on GitHub

Small adapter for bare LCD displays to VIK connector.

Features

  • horizontal or vertical VIK connector (FPC)
  • automatic reset (no separate pin)
  • two mounting holes for solder nuts
  • testing pads

Supported displays

Theoretically any display with 12pin welding type FPC with this pin out:

- GND
- LEDK
- LEDA
- VDD
- GND
- GND
- DC
- CS
- SCL
- SDA
- RESET
- GND

Bare displays can be used with any PCB size, but they are pretty fragile without any support, so be careful.

Existing PCBs for specific sizes:

  • 1.28" round display (example)
  • universal 0.7mm pitch / 1.47" rectangular display (example)
  • universal 0.8mm pitch (example)

Forced backlight

If controlled backlight is not needed (for example no GPIO2 on VIK), GND testing pad can be bridged to R1 bottom pad, for 100% backlight. In that case S8050 and R1 parts are not needed.

Photos

BOM

All SMD components are 1206 size

  • 10R resistor
  • 100k resistor
  • 1uF capacitor
  • 100nF capacitor
  • S8050 transistor
  • 12pin FFC connector vertical/horizontal (both can be soldered in the same time)

VIK module certification

CategoryClassificationResponse
FPC connectorRequired:heavy_check_mark:
Breakout pinsRecommended:x:
Uses: SPIOptional:heavy_check_mark:
SPI used for SPI onlyStrongly recommended:heavy_check_mark:
Uses: I2COptional:x:
I2C used for I2C onlyStrongly RecommendedN/A
I2C pull upsRequiredN/A
Uses: RGBOptional:x:
Uses: Extra GPIO 1Optional:heavy_check_mark:
Uses: Extra GPIO 2Optional:heavy_check_mark:
Standard PCB Size/MountStrongly recommended:x:

Used projects and resources