Heltec Wireless Paper ESP32-S3 E-Ink 2.13 Inch LoRa BLE 863–870 MHz

The Heltec Wireless Paper is an innovative e-ink development board that combines ultra-low power consumption with wireless communication. Thanks to the ESP32-S3FN8 platform and the powerful SX1262 LoRa chip, you can control it via Wi-Fi, Bluetooth Low Energy (BLE), or LoRa. The device features a 2.13-inch e-ink display that can show content for up to 180 days after a single power input. This makes it ideal for electronic price tags, IoT applications, or smart sensor displays. With high-quality reflective e-ink technology, the display offers high contrast, a wide viewing angle, and remains perfectly readable even in direct sunlight. Additionally, the USB Type-C interface allows easy power supply, firmware updates, and debugging. Thanks to the integrated battery connector, you can use the board mobile or solar-powered. Its compact design and integrated protective plate make the Wireless Paper suitable for various smart applications in logistics, retail, smart home, or IoT projects.

Recommended Accessories:

• JST 1.25 Lipo
• Solar Cell 5V 200mA 1W 110x60mm

Features:

• Powerful ESP32-S3FN8 microcontroller – Supports Wi-Fi, BLE, and offers high computational capacity for IoT applications.
• Efficient SX1262 LoRa chip – Enables long-range communication with minimal power consumption.
• 2.13-inch e-ink display – High contrast, wide viewing angles, and 180 days display without power.
• Ultra-low power consumption – Only 20 µA in deep sleep, ideal for energy-autonomous applications.
• Versatile connectivity – Supports Wi-Fi, BLE, and LoRa, allowing flexible device use.
• USB Type-C interface – For easy power supply, firmware updates, and debugging.
• Integrated battery and solar panel connector – Allows mobile or autonomous use.
• Protection through a transparent acrylic plate – Protects electronic components without covering the display.
• Supports BMP image display – You can load images via drag & drop onto the e-ink display.
• Easy development possibilities – Fully compatible with the Heltec ESP32 development environment.

Application Examples:

• Electronic price tags in stores and supermarkets for quick price updates.
• IoT sensor displays for smart buildings and environmental monitoring.
• Logistics and warehouse management to efficiently display labels and inventory data.
• Solar-powered information displays, e.g., for weather or environmental measurement stations.
• Smart door signs or name badges for conferences or businesses.

Documentation:

• Heltec Wiki
• Schematic
• Datasheet

Technical Data:

• Manufacturer: Heltec 
• Manufacturer SKU: Heltec Wireless Paper EU868 with Antenna
• Microcontroller: ESP32-S3FN8
• LoRa Chip: SX1262
• Frequency range: 863-928MHz
• Display resolution: 250 x 122 pixels
• Screen size: 2.13 inches
• Pixel pitch: 0.1942 mm x 0.1942 mm
• Connectivity: Wi-Fi, LoRa, BLE
• Power consumption: Deep sleep mode: ~20 µA
• Power supply: Lithium battery, USB Type-C
• Operating voltage: 3V – 5V
• Operating temperature: 0°C to 50°C
• Dimension: 72 x 30 x 6.3mm
• Weight: 48g

Scope of Delivery:

• 1x Heltec Wireless Paper ESP32-S3 E-Ink 2.13 inch LoRa BLE 863–870 MHz
• 1x LoRa Antenna
• 1x Acrylic Protective Plate
• 1x SH1.25 Lipo Battery Connector Cable
• 1x Screw Set