Heltec WiFi LoRa 32 V2
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The Heltec WiFi LoRa 32 V2, more commonly known as the Heltec V2, is a development board based around the ESP32 microcontroller. It features LoRa, Wi-Fi, Bluetooth, and USB connectivity.
Contents
Models
There are two models of the Heltec V2. The WiFi LoRa32(V2)-F operates on frequencies between 863 and 928 MHz, while the WiFi LoRa32(V2)-L operates on the lower-frequency 433 and 470 MHz band.
Firmware
The Heltec V2 is supported by the official RNode firmware as of version 1.50.cite-ref-1[1] It is also supported by the microReticulum firmware as of version 1.67.cite-ref-2[2]
References
External links
• Official website
• Datasheet
Heltec WiFi LoRa 32 V2
Also known as: Heltec V2
Manufacturer: Heltec Automation
Type: Development board
Price: US$17.90
MCU: ESP32
CPU: Xtensa LX6 @ 240 MHz
Memory: 520 kB SRAM 8 MB Flash
Display: 0.96-inch OLED 128 × 64 px
Power source: 5 V USB Micro-B 3.7 V Li-ion Battery
Dimensions: 51.0 × 25.5 × 10.6 mm
Successor: Heltec WiFi LoRa 32 V3
Bluetooth LE
Transceiver IC: ESP32
PHY modes: 1M
Output power: 10 dBm (10 mW)
Sensitivity: -98 dBm @ 1 Mbps
Antenna type: Shared Spring
2.4 GHz Wi-Fi
Transceiver IC: ESP32
PHY modes: IEEE 802.11b/g/n
Output power: 21.5 dBm (140 mW)
Sensitivity: -98 dBm @ 1 Mbps
Antenna type: Shared Spring
Sub-GHz LoRa