Test run of VFD display using Arduino

Among my electronics junk, I found a VFD (Vacuum Fluorescent Display) display and wanted to make sure it still works and can be used in projects. It’s a 16T202DA1E display manufactured by Samsung. It can replace the standard HD44780 based liquid crystal display out of the box. First of all, it only requires a 5V supply. The voltage step-up circuit for lighting fluorescent display is already on board. The controller accepts the same commands as any 2×16 LCD does. The pin-out of the display is as follows: The display can be connected either in 8-bit or 4-bit mode. Probably the most significant advantage of using VFD is its high contrast and crisp view. Lots of hobbyists prefer using them in high-end projects like audio amplifiers or message panels. But these benefits require some sacrifice – they draw more power. If a 2×16 LCD requires about 2-3mA, this adequate VFD requires between 130mA and 200mA. So this doesn’t look attractive when talking about battery-operated gadgets. Here is a simple test using Arduino. The code is already available in the samples category. All is needed to connect the display to proper pins and give it a go. * LCD RS pin to … Continue reading Test run of VFD display using Arduino

Continue reading