A custom two-VFD-tube desk display combining retro VFD aesthetics with modern smart-home connectivity. Full custom PCB and assembly — black resin back, 8001 transparent front, with a USB-C port lined up on the back with more precision than I can really explain.
Hardware
- ESP32-S3
- 2× VFD displays
- Boost converter for VFD high-voltage supply
- HV518 VFD driver + full custom ESP-to-HV518 bridging logic
- VEML7700 ambient light sensor
- AHT20 temperature/humidity sensor
- Buzzer
- USB-C charging port
- Custom enclosure: black resin back, 8001 transparent front
Firmware
- Fetches time over WiFi
- Fetches live weather data
- Fetches live crypto prices
- Additional data modes
