WiFi LoRa 32 (V2)
$18.20 – $18.80
- Include antenna;
- Include SH1.25 x 2 battery connector;
- Not include battery;
- 2.54 headers default not assemble.
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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 choice for smart cities, smart farms, smart home, and IoT makers.
This product can’t meet your needs? Choose from the Heltec LoRa Node family. Or have a quick look about the CubeCell series.
WiFi LoRa 32 is a part of the “Heltec LoRa“ series, with the following features:
- CE Certificate;
- Microprocessor: ESP32 (dual-core 32-bit MCU + ULP core), with LoRa node chip SX1276/SX1278;
- Micro USB interface with a complete voltage regulator, ESD protection, short circuit protection, RF shielding, and other protection measures;
- 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);
- Integrated WiFi, LoRa, Bluetooth three network connections, onboard Wi-Fi, Bluetooth dedicated 2.4GHz metal 3D antenna, reserved IPEX (U.FL) interface for LoRa use;
- Onboard 0.96-inch 128*64 dot matrix OLED display, which can be used to display debugging information, battery power, and other information;
- Integrated CP2102 USB to serial port chip, convenient for program downloading, debugging information printing;
- Support the Arduino development environment;
- We provide ESP32 + LoRaWAN protocol Arduino® library, this is a standard LoRaWAN protocol that can communicate with any LoRa gateway running the LoRaWAN protocol. In order to make this code running, a unique license is needed. it can be found on this page;
- 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 |
SX1276 (868 and 915 version); SX1278 (433 and 470 version) |
|
|
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 |
|
|
FLASH |
8MB(64M-bits) SPI FLASH |
|
|
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 |
|
Electrical 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 |
|||
|
WIFI AP |
135mA |
||||
|
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 the input current |
||||
|
External device power control (Vext 3.3V） |
350mA |
||||
How to install Heltec ESP32 Arduino Development Environment
Heltec ESP32 Series Source code
Heltec ESP(ESP32 & ESP8266) framework (the basic of Heltec ESP series products Arduino running environment): https://github.com/Heltec-Aaron-Lee/WiFi_Kit_series
Heltec ESP32 library (must work with Heltec ESP framework): https://github.com/HelTecAutomation/Heltec_ESP32
Heltec ESP32 LoRaWAN library (a standard LoRaWAN protocol library provide by Heltec Automation, need a license to active: http://www.heltec.cn/search/): https://github.com/HelTecAutomation/ESP32_LoRaWAN
Adafruit CircuitPython TinyLora library (Alan Peaty ported and shared this library): https://github.com/fantasticdonkey/uLoRa
WiFi LoRa 32 Pin out Diagram
WiFi LoRa 32 Schematic Diagram
WiFi LoRa 32 Hardware Update Logs
Heltec LoRa Node Porducts Difference Table (Product Selection Table)
Frequently Asked Questions
AutoCAD & 3D Drawing
AutoCAD 2017 version drawing: http://resource.heltec.cn/download/WiFi_LoRa_32/lora32%26kit32.dwg
Solid Works 2014 Version 3D drawing: http://resource.heltec.cn/download/WiFi_LoRa_32/lora32%26kit32.stl
Interesting applications made by WiFI LoRa 32
- Paxcounter：https://github.com/cyberman54/ESP32-Paxcounter
- A low-cost LoRa ioT solution：https://github.com/CongducPham/LowCostLoRaGw
- As a model remote control：http://www.moz8.com/thread-172414-1-1.html?_dsign=4feb6948
- Used to prevent hay and straw fires ：https://www.ibm.com/developerworks/cn/iot/library/iot-lpwan-lora-nodemcu-dhtsensors/
- WiFi instant camera：https://hackaday.io/project/162256-esp32-8266-wifi-instant-camera
- morserino (Morse code with a multi-functional morserino device) : http://www.morserino.info/morserino-32.html
- MicroPython example (IoT examples with many sensors and detail docs):
- LoRa sensor node config & usage video: https://youtu.be/YJwjZOkhdD8 https://youtu.be/8-bIp66ON1I
-
single-channel LoRa gateway solution: https://github.com/things4u/ESP-1ch-Gateway-v5.0
User test info report
- General test report: https://robotzero.one/heltec-wifi-lora-32/
- Communication distance test:
- YouKu:click to play
- YouTube:click to play
470MHz Smith Chart
LoRa 470MHz RF Power Output
470MHz SWR Test Data
868MHz and 915MHz SWR Test Data
- Cooling rib
- 3.7V/1000mAh Lithium Battery (Sale Mainland China only, can’t air transport)
- Antenna
- Bread Board.
- Over View
-
WiFi LoRa 32 is a part of the “Heltec LoRa“ series, with the following features:
- CE Certificate;
- Microprocessor: ESP32 (dual-core 32-bit MCU + ULP core), with LoRa node chip SX1276/SX1278;
- Micro USB interface with a complete voltage regulator, ESD protection, short circuit protection, RF shielding, and other protection measures;
- 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);
- Integrated WiFi, LoRa, Bluetooth three network connections, onboard Wi-Fi, Bluetooth dedicated 2.4GHz metal 3D antenna, reserved IPEX (U.FL) interface for LoRa use;
- Onboard 0.96-inch 128*64 dot matrix OLED display, which can be used to display debugging information, battery power, and other information;
- Integrated CP2102 USB to serial port chip, convenient for program downloading, debugging information printing;
- Support the Arduino development environment;
- We provide ESP32 + LoRaWAN protocol Arduino® library, this is a standard LoRaWAN protocol that can communicate with any LoRa gateway running the LoRaWAN protocol. In order to make this code running, a unique license is needed. it can be found on this page;
- 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.
- Tech Specs
-
Technical Parameters
source
parameter
MCU
ESP32( 240MHz Tensilica LX6 dual-core + 1 ULP, 600 DMIPS, 520KB SRAM, Wi-Fi, dual mode Bluetooth)
LoRa chip
SX1276 (868 and 915 version); SX1278 (433 and 470 version)
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
FLASH
8MB(64M-bits) SPI FLASH
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
Electrical 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
WIFI AP
135mA
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 the input current
External device power control (Vext 3.3V）
350mA
- Docs & Resource
-
How to install Heltec ESP32 Arduino Development Environment
Heltec ESP32 Series Source code
Heltec ESP(ESP32 & ESP8266) framework (the basic of Heltec ESP series products Arduino running environment): https://github.com/Heltec-Aaron-Lee/WiFi_Kit_series
Heltec ESP32 library (must work with Heltec ESP framework): https://github.com/HelTecAutomation/Heltec_ESP32
Heltec ESP32 LoRaWAN library (a standard LoRaWAN protocol library provide by Heltec Automation, need a license to active: http://www.heltec.cn/search/): https://github.com/HelTecAutomation/ESP32_LoRaWAN
Adafruit CircuitPython TinyLora library (Alan Peaty ported and shared this library): https://github.com/fantasticdonkey/uLoRa
WiFi LoRa 32 Pin out Diagram
WiFi LoRa 32 Schematic Diagram
WiFi LoRa 32 Hardware Update Logs
Heltec LoRa Node Porducts Difference Table (Product Selection Table)
Frequently Asked Questions
AutoCAD & 3D Drawing
AutoCAD 2017 version drawing: http://resource.heltec.cn/download/WiFi_LoRa_32/lora32%26kit32.dwg
Solid Works 2014 Version 3D drawing: http://resource.heltec.cn/download/WiFi_LoRa_32/lora32%26kit32.stl
Interesting applications made by WiFI LoRa 32
- Paxcounter：https://github.com/cyberman54/ESP32-Paxcounter
- A low-cost LoRa ioT solution：https://github.com/CongducPham/LowCostLoRaGw
- As a model remote control：http://www.moz8.com/thread-172414-1-1.html?_dsign=4feb6948
- Used to prevent hay and straw fires ：https://www.ibm.com/developerworks/cn/iot/library/iot-lpwan-lora-nodemcu-dhtsensors/
- WiFi instant camera：https://hackaday.io/project/162256-esp32-8266-wifi-instant-camera
- morserino (Morse code with a multi-functional morserino device) : http://www.morserino.info/morserino-32.html
- MicroPython example (IoT examples with many sensors and detail docs):
- LoRa sensor node config & usage video: https://youtu.be/YJwjZOkhdD8 https://youtu.be/8-bIp66ON1I
-
single-channel LoRa gateway solution: https://github.com/things4u/ESP-1ch-Gateway-v5.0
User test info report
- General test report: https://robotzero.one/heltec-wifi-lora-32/
- Communication distance test:
- YouKu:click to play
- YouTube:click to play
- Test Info
-
470MHz Smith Chart
LoRa 470MHz RF Power Output
470MHz SWR Test Data
868MHz and 915MHz SWR Test Data
- Accessories
-
- Cooling rib
- 3.7V/1000mAh Lithium Battery (Sale Mainland China only, can’t air transport)
- Antenna
- Bread Board.