Heltec Wireless Paper
by Heltec Automation
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.
Technical Details
- 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.
- With good RF circuit design and low-power design.
Specifications
- MCU: ESP32-S3FN8
- LoRa Chipset: SX1262
- Frequency: 470~510MHz, 863~928MHz
- 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
Purchase
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Absolute Newest
Every time we commit new code to CircuitPython we automatically build binaries for each board and language. The binaries are stored on Amazon S3, organized by board, and then by language. These releases are even newer than the development release listed above. Try them if you want the absolute latest and are feeling daring or want to see if a problem has been fixed.
Previous Versions of CircuitPython
All previous releases of CircuitPython are available for download from Amazon S3 through the button below. For very old releases, look in the OLD/ folder for each board. Release notes for each release are available at GitHub button below.
Older releases are useful for testing if you something appears to be broken in a newer release but used to work, or if you have older code that depends on features only available in an older release. Otherwise we recommend using the latest stable release.