Wifi four-digit fluorescent tube clock

CC-BY-NC 3.0 protocol, NC=not for commercial use

illustrate

This fluorescent tube clock uses YS13-3, which is a domestically produced fluorescent tube of decent size and not very expensive.

This design has the following characteristics:

ESP32-SOLO, SOLO is single-core but low-priced compared to other models.

Combination of 595 and ULN2003, cheap and reliable

Alternate OLED display

Additional real-time clock chip for redundancy without Wifi (such as in-car)

four buttons

temperature sensing

Student friendly (large size components, cheap design)

Problems

Currently, the fluorescent tube part of this design cannot be lit, but except for the fluorescent tube, all other designs [have been verified to work normally], including ESP32, clock, battery, etc.

Summarize

If you want to use this design, you need to check and replace the driving scheme of the fluorescent tube yourself. You need to study the specific driving method of 1.2V voltage. The other parts can be proven effective after actual proofing and welding verification, and the operation of 595 does not question

In order to actively solve the problem, the first netizen to provide an effective power supply design has personally granted commercial permission to this open source design.