Heltec Vision Master E213 ESP32-S3 E-Ink 2.13 Inch LoRa BLE 863–870 MHz

The Heltec E-Ink Display 2.13 inch Vision Master ESP32-S3 LoRa is a compact IoT development board with an integrated e-paper display and radio module for the LoRa frequency range 863–870 MHz. It combines the energy-saving display technology of a 2.13″ E-Ink display with the versatile communication capabilities of the ESP32-S3 microcontroller, which supports both Wi-Fi and Bluetooth Low Energy. The device is optimized for extremely low-power operation: The display retains content for up to 180 days without power, while the deep-sleep mode reduces consumption to a few microamperes. Thanks to integrated battery management, expandable interfaces, and robust construction, the board is suitable for battery-operated sensor nodes, Meshtastic setups, smart home displays, or outdoor IoT projects.

Features:

• The 2.13″ E-Ink display (250×122 pixels) shows the last content even without power supply.
• ESP32-S3R8 microcontroller with integrated Wi-Fi (2.4 GHz) and BLE.
• SX1262 LoRa radio module for the frequency range 863–870 MHz.
• Very low power consumption in deep-sleep mode (~20 µA).
• Integrated charging electronics and battery connection for mobile use.
• Two QuickLink interfaces for expansion with sensors or actuators.

Application Examples:

• Battery-powered LoRa Meshtastic nodes
• Electronic status and sensor displays
• Smart home or industrial monitoring with LoRa connectivity
• Environmental monitoring and outdoor sensor nodes
• Prototyping energy-efficient IoT devices

Documentation:

• Datasheet
• Schematic
• Github

Technical Specifications:

• Manufacturer: Heltec
• Manufacturer SKU: Vision Master E213 EU868 Spring Antenna
• Microcontroller: ESP32-S3R8 with Wi-Fi 2.4 GHz, Bluetooth LE
• Display: 2.13″ E-Ink, 250×122 pixels, Black/White
• LoRa Radio: SX1262, Frequency range 863–870 MHz
• Memory: 8 MB PSRAM, 8 MB Flash
• Interfaces: USB-C, SH1.25-2 battery connection, SH1.0-4P QuickLink, GPIO
• Battery charging function: integrated
• Power consumption (deep sleep): ~20 µA
• Dimension: 67 × 31 × 11 mm
• Weight: 44 g

Scope of Delivery:

• 1x Heltec Vision Master E213 ESP32-S3 E-Ink 2.13 inch LoRa BLE 863–870 MHz
• 2x Pin header
• 1x Antenna
• 1x SH1.25-2P Cable