Heltec WIFI Lora Kit 32 V2 433MHZ ESP32 LoRa SX1278 esp32 0.96 Inch OLED Display BluetoothDevelopment Board for Arduino


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  • Brand Name: Heltec Automation
  • Model Number: HTIT-WB32LA
  • Compatibility: Others
  • Frequncy: 433MHZ
  • Main chip: ESP32
  • Lora Chip: SX1278

WiFi LoRa 32 is a classic IoT dev-board designed & produced by Heltec Automation(TM), it’s a highly integrated product based on ESP32 + SX127x, it has Wi-Fi, BLE, LoRa functions, also Li-Po battery management system, 0.96″ OLED are also included. It’s the best chooise for smart cities, smart farms, smart home and IoT makers.

Over View


WiFi LoRa 32 is a part of the “Heltec LoRa“ series, with the following features:


 CE Certificate;
2 Microprocessor: ESP32 (dual-core 32-bit MCU + ULP core), with LoRa node chip SX1276/SX1278;
3 Micro USB interface with complete voltage regulator, ESD protection, short circuit protection, RF shielding and other protection measures;
4 Onboard SH1.25-2 battery interface, integrated lithium battery management system (charge and discharge management, overcharge protection, battery power detection, USB / battery power automatic switching);
5 Integrated WiFi, LoRa, Bluetooth three network connections, on-board Wi-Fi, Bluetooth dedicated 2.4GHz metal 3D antenna, reserved IPEX (U.FL) interface for LoRa use;
6 On-board 0.96-inch 128*64 dot matrix OLED display, which can be used to display debugging information, battery power and other information;
7 Integrated CP2102 USB to serial port chip, convenient for program downloading, debugging information printing;
8 Support the Arduino development environment;
9 (Exclusive) Supports the Arduino version of the ESP32 + LoRaWAN protocol routine provided by Heltec. This is a standard LoRaWAN protocol that can communicate with any gateway/base station running the LoRaWAN protocol (requires serial number activation, only the development of the company) The board is available)
10 With good RF circuit design and basic low-power design (sleep current ≤800uA), it is convenient for IoT application vendors to quickly verify solutions and deploy applications;


 Technical Parameters


Source Parameter
MCU ESP32( 240MHz Tensilica LX6 dual-core + 1 ULP, 600 DMIPS, 520KB SRAM, Wi-Fi, dual mode Bluetooth)
LoRa chip SX1278
LoRa bands EU_433, CN_470_510, EU_863_870, US_902_928 four bands optional
LoRa maximum 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
Display 0.96 inch 128*64 OLED display
interface Micro USB x 1; LoRa antenna interface(IPEX) x 1
Size 50.2 x 25.5 x 9.74 mm
USB to UART Bridge CP2102
Battery Type 3.7V Lithium(SH1.25 x 2)
 Battery detection circuit  √
External device power control(Vext)  √
 Low power design

 Deep Sleep 800uA


 Eletrical characteristics


Electrical characteristics condition Minimum Typical Maximum
Power Supply USB powered(≥500mA) 4.7V 5V 6V
Lithium powered(≥250mA) 3.3V 3.7V 4.2V
3.3V(pin)powered(≥150mA) 2.7V 3.3V 3.5V
5V(pin)powered(≥500mA) 4.7V 5V 6V
Power consumption(mA) WIFI scan        115mA       
LoRa 10dB emission 50mA
LoRa 12dB emission 60mA
LoRa 15dB emission 110mA
LoRa 20dB emission 130mA
Output 3.3V pin output     500mA
5V pin output (USB powered only)    Equal to input current  
External device power control (Vext 3.3V)   350mA


Package Include :

Why choose us?

l  We have our own SMT factory

l  Professional design team, our develop engineers covers hardware system design,      RF design, software design (C, C++, ASM, python, JAVA, etc.). Especially in ARM, mbed, Arduino® field.

l  Professional instruments and equipment for development and test,

l  engineers and support engineers.


What Can We Do For You?

l  Hardware design

l  ARM and Mbed system software design

l  Mechanical structure design;

l  Automatic control system design;

l  PCB & SMT produce;

l  OEM & ODM.