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Heltec Wireless Paper ESP32-S3FN8+SX1262 Chip Driven Via Wi-Fi, BLE and LoRa Onboard USB-UART Bridge 212x104 pixels IOT Display
Heltec Wireless Paper ESP32-S3FN8+SX1262 Chip Driven Via Wi-Fi, BLE and LoRa Onboard USB-UART Bridge 212x104 pixels IOT Display
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SPECIFICATIONS
Accessory Type: USB To DC Cable
Battery Included: no
Brand Name: Heltec Automation
Choice: yes
Compatible With: ESP32
High-concerned chemical: None
Origin: Mainland China
Typical Application Fields: Internet of Things (IoT)
semi_Choice: yes
Wireless Paper
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Product real-life photos

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 a part of the “Heltec LoRa“ series, with the following features:
ESP32-S3FN8 + SX1262 Chipset, device can be driven via Wi-Fi, BLE and LoRa;
Default 212 x 104 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;
Commercial temperature range: -25 ~ 40℃;
Onboard USB-UART bridge, facilitate user secondary development.
Specifications
Parameters |
Description |
MCU |
ESP32-S3FN8 |
LoRa Chipset |
SX1262 |
Frequency |
470~510MHz, |
Power Supply |
lithium battery, USB Type-C |
Supply Voltage |
3~5v |
Operating Temperature |
0~50℃ |
Operating Humidity |
35~70% |
Display Resolution |
122(H)x250(V) Pixel |
Connection Method |
Wi-Fi, LoRa,BLE |
Screen Size |
2.13 Inch |
Active Area |
23.705×48.55 |
Pixel Pitch |
0.1942X0.1942 |
Pixel Configuration |
Square |


FAQ
What is E ink price tag?
E Ink price tag is a price tag that is very suitable for retail. It 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.
How to use it?
You can refer to the Quickstart.
Docs & Resource
[Resource] — Heltec ESP32 framework and lib installation
[Resource] —Hardware Update Logs
[Resource] —Datasheet
[Resource] —Schematic_Diagram
[Resource] —E-Ink Datasheet
[Resource] —User Manual Document
[Resource] —Heltec LoRaWAN test server based on SnapEmu
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