LoRa Node 433 & 868 Mhz ESP32 SX1276 WIFI Bluetooth Heltec Heltec Tracker HELTEC-LORA-868-TRACKER2-883 View larger


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LoRa Node 433 & 868 Mhz ESP32 SX1276 WIFI Bluetooth Heltec

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This LoRaWAN network node is an IoT development board for LoRa 433Mhz or 868Mhz (depending on the model) with WIFI 802.11 b/g/n/e/i, Bluetooth/BLE and 2.4cm OLED display.

Compatible with the Arduino environment, Windows, Linux, Mac and based on the microprocessor ESP32 (32-bit dual-core) and LoRa chip SX1278 (433Mhz version) or SX1276 (868Mhz version).

Integrates battery management system, charging and discharging, overload protection, automatic switching of USB power / battery.

Delivered with: 1 LoRa ESP32 V2 node, 1 lora antenna 433 or 868, 2 headers (soldering), battery and micro-USB cable not included.

More details

This material is no longer available

  • 433 Mhz
  • 868 Mhz

Data sheet

Specifications lorawan Node ESP32


ESP32 (240MHz LX6 dual-core), 520KB, Wi-Fi, Bluetooth BLE)

LoRa chip

SX1276 (868 version) and SX1278 (433 version)

LoRa bands

EU_433, EU_863_870

LoRa max.output power   

18dB ± 2dB

Hardware resources

UART x 3; SPI x 2; I2C x 2; I2S x 1

12 – bits ADC; 8 – bits DAC

29 general GPIO


0.96 inch 128*64 OLED display


8MB(64M-bits) SPI FLASH


Micro USB x 1; LoRa antenna interface(IPEX) x 1


50.2 x 25.5 x 9.74 mm

USB to UART Bridge

CP2102 (drivers)

Battery Type

3.7V Lithium (SH1.25 x 2)

Low power design

Deep Sleep 800uA

Electrical characteristics






Power Supply

USB powered(≥500mA)




Lithium powered(≥250mA)












Power consumption(mA)  

WIFI scan








LoRa 10dB emission




LoRa 12dB emission




LoRa 15dB emission




LoRa 20dB emission




Documentation Heltec WiFi LoRa 32

How to make a serial connection between your ESP32 card on Windows, Mac, or Linux

Arduino Library for Heltec ESP32 (or ESP32 + LoRa) devboards on Github

Pinout diagram ESP32 LoRa V2

diagram pinout lora esp32 heltec

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Delivery Europe & Overseas

Stock and shipped from France

Product return

14 days to return, 2 warranty

Email support

Response within 24h to 72h

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