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Driving Futaba's 16bit Vacuum Fluorescent Display with an ESP32

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Futaba-VFD-16bit_ESP32

Driving Futaba's 8 and 16bit Vacuum Fluorescent Display with an ESP32

Type of display: 8-MD-06INKM

Author: Marc Staehli, initial upload April 2022

Fully refactored code of what was originally delivered with the display. Using SPI.h library for reliable control of the display.

Features:

  • Works with 8 digits and with 16 digits (must be set in vfd_controls.h)
  • Simple functions to control the display
  • Includes Umlaute (äöüÄÖÜ) and the degree sign (°)
  • vfd_controls.h includes all functions (works similar as a library)

Futaba-VFD-16bit-ESP32

this one was bought here: https://www.aliexpress.com/item/1005001498957894.html

Futaba-VFD-16bit-ESP32

Connections display to ESP32:

  • din = 23; // DA (MOSI)
  • clk = 18; // CK (CLK)
  • cs = 5; // CS (SS)

the 8bit display needs additionally:

  • en = solder blob to shorten with +5V
  • reset = must be set high (3.3V) to work - ground to be resetted

List of functions:

  • VFD_init(); -- must be set in setup(), initializes the display

  • VFD_brightness(unsigned int); -- value between 0 and 255 to set the brightness

  • VFD_clearScreen(); -- clears the screen

  • VFD_standby(bool); -- sets display in stand-by mode, value true or false

  • VFD_WriteASCII(int, byte); -- write a char at a specific position (e.g. VFD_WriteASCII(2, 65); writes an 'A' at position 3. (0 is first position))

  • VFD_WriteStr(int, String); -- write a string at a specific position. Long strings will automatically scroll from right to left.

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Driving Futaba's 16bit Vacuum Fluorescent Display with an ESP32

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