Note: This is the Heltec Vision Master E213 (US Band 863-928 MHz) with Meshtastic firmware pre-installed. It includes the LoRa module and LoRa antenna. Perfect for compact Meshtastic mesh networking nodes with its E-Ink display. The Vision Master E213 is a compact, ultra-low-power ESP32-S3 based E-Ink LoRa development board. It features a 2.13-inch black & white E-Ink display that is sunlight-readable and can retain the last image for up to 180 days after power loss — making it ideal for long-term, battery-powered deployments. This unit comes with the US frequency band (863-928 MHz), the LoRa module enabled, the matching LoRa antenna, and Meshtastic firmware pre-loaded — ready for immediate use in Meshtastic mesh networks. Great for off-grid communication, asset tracking, electronic shelf labels, environmental monitoring, and other low-power IoT projects. KEY FEATURES 2.13-inch E-Ink Display: 250 × 122 pixels, black & white with partial refresh support — ultra-low power and excellent readability in sunlight. ESP32-S3R8 MCU: Dual-core processor with Wi-Fi and Bluetooth 5 support. LoRa Connectivity: SX1262 LoRa transceiver (US 863-928 MHz band) with up to 21 dBm TX power — includes external LoRa antenna. Pre-flashed with Meshtastic Firmware: Ready for Meshtastic mesh networking right out of the box. Ultra-Low Power: Only ~20 µA in deep sleep — perfect for long-lasting battery or solar-powered nodes. Battery Management: Onboard charging circuit with USB-C, overcharge protection, and automatic power switching. Expansion Options: Dual SH2.0-4P sensor interfaces (QuickLink compatible), 2×18 pin headers, and IPEX antenna connectors. Compact & Lightweight: Small form factor for portable or embedded projects. SPECIFICATIONS Product Name Vision Master E213 (US Band + Meshtastic) MCU ESP32-S3R8 (Dual-core, Wi-Fi + BLE 5) LoRa Chip SX1262 (LoRa module included) LoRa Frequency US Band: 863–928 MHz Max TX Power 21 ±1 dBm E-Ink Display 2.13 inch, 250 × 122 pixels, Black & White, partial refresh Memory 16 MB Flash, 8 MB PSRAM, 512 KB SRAM Wireless Wi-Fi 802.11 b/g/n, Bluetooth 5 (LE) Antenna LoRa Antenna (IPEX) includedOnboard spring antenna for Wi-Fi Battery Support 3.7V Li-Ion / Li-Po (battery not included) Power Consumption ~20 µA in deep sleep Dimensions 66.75 × 30.41 × 10 mm Weight 35 g Compatibility Meshtastic (pre-flashed), LoRaWAN, Arduino, MicroPython, PlatformIO WHAT'S INCLUDED 1 × Vision Master E213 board (US band, LoRa module enabled, Meshtastic pre-flashed) 1 × LoRa Antenna (IPEX) 1 × SH1.25-2P battery connector 2 × 2.54 mm header pins (13-pin) NOTES Battery is not included — you can connect your own 3.7V Li-Ion or Li-Po battery. LoRa Antenna is included because the LoRa module is enabled for Meshtastic. Not waterproof — suitable for indoor or protected outdoor use.
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