Wireless Paper is an E-Ink development kit with multiple wireless drive methods. Collaborate with the sample programs and development tools we provide, users can operate the display via Bluetooth, Wi-Fi and LoRa. This board is equipped with a default 2.13-inch black and white E-Ink display screen, continuous display for 180 days after power outage. It can be used to develop applications such as electronic tags and identity tags.

Wireless Paper is compatible with the following open-source projects:

• ESP32 Paxcounter

• Disaster Radio

• Meshtastic

• Tiny GS

• …

We also provide a standard ESP32 Arduino LoRaWAN library:

• Heltec ESP32 LoRaWAN

This library is already included in the Heltec ESP32 Arduino Framework by default.

Resource

• Heltec ESP(ESP32&ESP8266) framework

• Heltec LoRaWAN test server based on TTS V3

• User Manual Document

• Hardware update logs

Main Features 

• ESP32-S3FN8 + SX1262 Chipset, device can be driven via Wi-Fi, BLE and LoRa;
• Default 250 x 122 pixels black-white display, it can also be used to drive E-Ink screens of other sizes;
• High contrast, high reflectance, ultra-wide viewing angle;
• Low power consumption, 20uA in deep sleep;
  Internal integrated display screen refresh page function, users can drag and drop BMP images to achieve refresh;
• Operation condition: 0~50℃, 35~70%RH;
• Onboard USB-UART bridge, facilitate user secondary development.

Single item list:

• Wireless Paper x1
• LoRa Antenna x1
• Acrylic Protection Board x1
• SH1.25 x 2 battery connector x1

FAQ

What is E ink price tag?

E lnk price tag is a price tag that is very suitable for retall. t is simple to operate and more convenient to use. Compared with ordinary paper price
tags, it is faster to change prices and can save a lot of human resources.

Does it have WiFi functionality?

Yes.