V2 version VFD 7-BT-317NK WIFI clock

--> For driver scheme and MCU selection introduction, soldering precautions, and inspection steps, please refer to the first version of the content:
https://oshwhub.com/yc_chen/vfd-317nk-qu-dong-ban
 
 
 
Version
 
V1
initial VFD design sketch, functionality not perfect, feasibility verified in the fastest time online,
and cost kept under 10 yuan.
Disadvantages: poor stability, power supply issues, does not support PD charging head, sloppy PCB design.
 
V2
improved VFD design sketch, fixing known bugs in V1 and enhancing stability.
1. Improved stability by optimizing the power supply scheme and adding many capacitors.
2. Removed unnecessary AHT20 pads and improved PCB design. Added DC-DC power supply scheme, overall cost still controllable at around 9-13 yuan.
3. Compared to the four-layer board with green solder mask in V1, the improved V2 uses a double-sided board with black and green solder mask as the main color scheme.
 
 
The source code
 
version V1 has been released as release-V1.0. Download history: https://github.com/ccy-studio/CCY-VFD-7BT317NK/releases/tag/V1.0.
 
For newer versions, if no release is available, the latest version (v2) is still on the master branch: https://github.com/ccy-studio/CCY-VFD-7BT317NK
 
. The code is concise and easy to understand; API calling methods can be found in the Readme. It has high portability and is easily ported to 51 and STM32 microcontrollers.