CALE Screen manager

Calendar Low Energy

Designed for those who make

CALE let's you organize content from different sources like weather,
events and any applications that expose an open API.
▲ Check our PCB designs Create an account FAQ NEWS

Runs on ESP32 and ESP8266

CALE enables you to prepare Screens for your displays
without the hassle of managing any infrastructure.

Compile CALE Firmware

Epapers on SALE

Tested and working, with the ESP32 and battery, ready to be hacked!

Check the assembled epapers on sale

A configurator for multiple Einks

The configurator backend has been developed for today's standards,
with a special care for usability and user experience

3D print ready and easy to make

Check our project in Hackaday and read about the requirements. Pick a model and built it for under 50€ getting a 400*300 Eink screen and connecting 8 cables
No time? No problem, just get in touch and we will build it for you.

Read the build instructions here

A screen to keep you on track

Built securely and transparent, without advertising, where you can see all the code being used. Hacker friendly and simple to use

Designed for those who make

Runs on ESP32 and ESP8266

Epapers on SALE

A configurator for multiple Einks

3D print ready and easy to make

A screen to keep you on track

API Mashup creator for your WiFi displays

CALE is a screen administrator where you can mix the content of different APIs and control the output.

You can use it on any WiFi display like your tablet, mobile, or ultimately in a WiFi E-Paper screen that is every hour fetching new content at minimum consumption.

API integration example with Ethereum balance and Cloudwatch monitoring

800*600 pixels bitmap demo for an Epaper WiFi display

Our Firmware is compatible with ESP32 (C3,S3) Espressif boards and it's ready to be configured with Rainmaker (Check feature/50-idf-v5-rainmaker branch)