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WiFi LoRA 32 (V2) ESP32 | Overview | Introduction

Today we talk about WiFi LoRA 32. This a board based on ESP32 with WiFi, Bluetooth, LoRa.

WIFI LoRA 32 (V2) overview:

  • WiFi + bluetooth + LoRa – Support WIFI802.11 b/g/n/e/i ,Traditional bluetooth and BLE low-power dual-mode bluetooth. Provide exclusive LoRaWAN protocol source code running on ESP32 and provide technical support.
  • Highly integrated – Integrate the functions of MCU, SX125x LoRa chip, radio frequency loop switch, radio frequency circuit, lithium battery management, USB to serial port, etc. Users only need a Micro USB connection to get complete wi-fi, bluetooth and LoRa functions.
  • Better low power consumption design – The ESP32 chip has a high level of low-power performance in the industry, including fine resolution clock gate control, power saving mode and dynamic voltage regulation.Designed for mobile devices, wearable electronics and Internet of things applications.Resting current 800uA ± 50uA(the instructions executed by MCU need to be read from the FLASH chip used on the board, so the power consumption cannot be reached to the limit)
  • More stable performance – The new version of WIFI LoRa 32 has redesigned the circuit part and upgraded the safety and stability of the circuit on the premise of keeping the pin order and the previous generation unchanged.Including better impedance matching and more scientific power supply circuits. Work at 30 ° C to + 80 ° C temperature range.
  • The long distance – LoRa spread spectrum communication has the characteristics of long communication distance. Under the premise of good impedance matching and sufficient power supply, in the open area, our communication distance can reach 3Km.
  • The large capacity – On the premise of cooperating with LoRa Gateway,A gateway can communicate with more than 1,000 nodes.
  • Security – LoRaWAN is the first Internet of things to propose double encryption, preventing the possibility of radio eavesdropping.
  • Low power consumption – On the basis of the LoRaWAN source code provided by Semtech, we made a lot of improvements to the low-power part of the code. Within one transmission cycle of the system, only a few milliseconds were in the working state, and the rest of the time was in the deep sleep state.For example, if my application sends a set of data in 8 hours, the whole system runs in milliseconds during those 8 hours, and the rest of the time is in deep sleep.This can greatly reduce the use of batteries.

Heltec  successfully transplanted the LoRaWAN protocol to the ESP32 + Arduino platform, using internal RTC, and supporting deep sleep.Users only need a simple configuration to complete the application of LoRaWAN.


  • Frequency: 240MHz
  • FLASH:64M-bits
  • The processor: 2个Tensilica LX6 + 1个ULPThe processor
  • Main control chip:ESP32
  • LoRachip support frequency band:  SX1276(868-915、923MHz);SX1278(433-510MHz)
  • Open communication distance:3KM
  • Computing power:As high as 600 dmips
  • Dual mode bluetooth: Traditional bluetooth and BLE low power bluetooth
  • The development environment:Perfect support for Arduino
  • Working voltage:  3.3v~ 7v
  • Operating range temperature:-40~80℃
  • Receiver sensitivity:-139dbm(SF12, BW125KHz)
  • UDP continuous throughput:135Mbps
  • USB-to-UART bridge chip:CP2102
  • WIFI Support mode:sniffer、Station、softAP和Wi-Fi Direct

Recommended : Dynamic WLAN configuration for ESP32 Board | AutoConnect

Installation Instructions using Arduino IDE

Based on Arduino source codes and toolchain for WiFi_Kit_series made by HelTecAutomation. Visit this github link

Tested on 32 and 64 bit Windows 10 machines

  1. Download and install the latest Arduino IDE Windows Installer from
  2. Download and install Git from
  • If you don’t install Git,you choose dowload zip from the home page and Unzip the file to /Documents/Arduino/hardware/heltec ,Skip steps three to step four
  1. Execute the command under the \Documents\Arduino\hardware path Start Git Bash and run through the following steps:
    • Input git clone heltec
  2. Open /Documents/Arduino/hardware/heltec/esp32/tools and double-click get.exe
  3. When get.exe finishes, you should see the following files in the directory
  4. Plug your ESP32 board and wait for the drivers to install (or install manually any that might be required)
  5. Start Arduino IDE
  6. Select your board in Tools > Board menu WiFi_Kit_32or WiFi_LoRa_32
  7. Select the COM port that the board is attached to
  8. Compile and upload (You might need to hold the PRG button while uploading)Arduino IDE Example

How to update to the latest code

  1. Open /Documents/Arduino/hardware/heltec created start Git Bash and input git pull!
  2. Wait for git to pull any changes and close Git Bash
  3. Open /Documents/Arduino/hardware/heltec/esp32/tools and double-click get.exe

Installation instructions for Debian / Ubuntu OS

  • Install latest Arduino IDE from
  • Open Terminal and execute the following command (copy->paste and hit enter):
    sudo usermod -a -G dialout $USER && \
    sudo apt-get install git && \
    wget && \
    sudo python && \
    sudo pip install pyserial && \
    mkdir -p ~/Arduino/hardware && \
    cd ~/Arduino/hardware && \
    git clone heltec && \
    cd heltec/esp32 && \
    git submodule update --init --recursive && \
    cd tools && \
    python && \
    cd ~/Arduino/hardware/heltec/esp8266 && \
    git submodule update --init --recursive && \
    cd tools && \
  • Restart Arduino IDE
  • If you have installed to /Applications/, modify the installation as follows, beginning at mkdir -p ~/Arduino...:
  cd /Applications/Arduino_*/Contents/java/
  mkdir -p hardware && \
  cd hardware && \
  git clone heltec && \
  cd heltec/esp32 && \
  git submodule update --init --recursive && \
  cd tools && \
  python && \
  cd /Applications/Arduino_*/Contents/java/hardware/heltec/esp8266 && \
  git submodule update --init --recursive && \
  cd tools && \

WiFi LORA 32 V2 Pinout Diagram

I hope you like this post “WiFi LoRA 32”. If have you any query please write in comment box. And you can share this post “WiFi LoRA 32”.

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Harshvardhan Mishra

Hi, I'm Harshvardhan Mishra. Tech enthusiast and IT professional with a B.Tech in IT, PG Diploma in IoT from CDAC, and 6 years of industry experience. Founder of HVM Smart Solutions, blending technology for real-world solutions. As a passionate technical author, I simplify complex concepts for diverse audiences. Let's connect and explore the tech world together! If you want to help support me on my journey, consider sharing my articles, or Buy me a Coffee! Thank you for reading my blog! Happy learning! Linkedin

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