mogenson wrote a Rust application that lets a Flipper Zero write to a Waveshare e-Paper Tag over NFC, effectively turning the passive paper tag into a programmable display.
i12bp8 writes about TagTinker, a Flipper Zero app for exploring infrared electronic shelf-label (ESL) protocols, enabling users to transmit custom images and text to supported e-ink graphics tags. The project bundles a browser-based image preparer with dithering and colour quantisation, NFC tag scanning for auto-identifying ESL targets, and optional WiFi plugins via an ESP32-S2 bridge that render live designs (crypto prices, weather, GitHub profiles) through a Cloudflare Worker without reflashing the Flipper.
- Security relies entirely on protocol obscurity; the Flipper team noted the IR signal is "same that you use in TV remotes"
- Tags store firmware in volatile RAM, so removing the battery permanently bricks them
- A sub-$5 ESP32 + IR LED setup replicates the functionality without a Flipper Zero
- The web preparer uses Oklab 3-colour quantisation with Floyd-Steinberg, Atkinson, or Bayer dithering
- Supports monochrome and accent-colour (red/yellow) tags including SmartTAG Color 2.6 (type 1626)
- Security relies entirely on protocol obscurity; the Flipper team noted the IR signal is "same that you use in TV remotes"
- Tags store firmware in volatile RAM, so removing the battery permanently bricks them
- A sub-$5 ESP32 + IR LED setup replicates the functionality without a Flipper Zero
- The web preparer uses Oklab 3-colour quantisation with Floyd-Steinberg, Atkinson, or Bayer dithering
- Supports monochrome and accent-colour (red/yellow) tags including SmartTAG Color 2.6 (type 1626)
Git contributions e-ink display on an esp32. Show off your commit streaks with this wireless e-ink display. It uses an ESP32 to fetch and display your latest contributions.
This article details a project to create a small desktop appliance with an E-Ink display that shows a user's GitHub activity graph. It uses an ESP32 and a 3D-printed case, configured via a web interface.
Create awesome e-paper dashboards within minutes! Modularity? Check! Python3? Check? Works on Raspberry Pi Zero W? Check! Support for own modules? Check!
Raspberry Pi W Zeros 2 weather panel
I've actually just received one of these HATs (the crashing version), and found this issue because my Pi Zero was crashing. Thanks for all the suggestions here.
Instead of messing around with capacitors, wouldn't it be simpler to do this:
remove (clip off / unsolder) the 5V pin(s) from the Pi header
attach the HAT to the Pi
solder a wire from the 3.3v pin to VCC on the HAT
Instead of messing around with capacitors, wouldn't it be simpler to do this:
remove (clip off / unsolder) the 5V pin(s) from the Pi header
attach the HAT to the Pi
solder a wire from the 3.3v pin to VCC on the HAT
