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WiFi LoRa 32 is a classic IoT dev-board designed & produced by Heltec Automation. Since its launch in 2017, it has been loved by developers and makers. The newly launched V3 version has the same pin sequence as the V2 version and retains Wi-Fi, BLE, LoRa, OLED display, and other functions.
It is the best option for smart cities, farms, homes, industrial control, house security, wireless meter reading, and IoT developers.
Compared to WiFi LoRa 32 (V2), V3 has made the following upgrades:
|Item||WiFi LoRa 32 (V2)||WiFi LoRa 32 (V3)|
|LoRa Node Chip||SX1276||SX1262|
|USB Socket||Micro USB||USB Type C|
|Crystal Oscillator||Ordinary crystal oscillator||High precision temperature compensated crystal oscillator|
|Low Power Features in Deep Sleep||≈800uA||<10uA|
|Other Update||Better impedance matching of RF circuits.|
|Master Chip||ESP32-S3FN8 (Xtensa®32-bit lx7 dual core processor)|
|LoRa Node Chip||SX1262|
|USB to Serial Chip||CP2102|
|Max. TX Power||21±1dBm|
|Max. Receiving sensitivity||-136dBm@SF12 BW=125KHz|
|Wi-Fi||802.11 b/g/n, up to 150Mbps|
|Bluetooth||Bluetooth 5 (LE)|
|Hardware Resource||7*ADC1 + 2*ADC2; |
|Memory||384KB ROM; |
16KB RTC SRAM;
8MB SiP Flash
2*1.25 lithium battery interface;
2*18*2.54 Header Pin
|Battery||3.7V lithium battery power supply and charging|
|Operating Temperature||-20 ~ 70 ℃|
|Dimensions||50.2 * 25.5* 10.2 mm|
USB Type C
The power supply, firmware download, and debugging interfaces adopt a more universal USB Type C interface, making development work more convenient.
We also made a plastic shell as an optional accessory. Which provide basic protection for the development board.
The 2.4GHz antenna is a spring antenna, and there is no additional interface on the board for 2.4GHz wireless signals.
No, the WiFi LoRa 32 don’t have an external PSRAM, if your application need use Bluetooth and Wi-Fi at the same time, you can look into this product: Heltec Wireless Bridge.
- Micro Python
- Espressif IDE
We strongly recommend using Arduino. We have complete technical support and provide complete LoRaWAN code for ESP32 Arduino framework.
You can find this type of socket by search “SH1.25 x 2”.
The default packing list without selecting any accessories is as follows:
|WiFi LoRa 32 (V3)||x1|
|SH1.25×2 Battery Connector||x1|