Heltec WiFi BLE module LoRa 32 V3 868MHz ESP32-S3 + OLED 0.96" for Meshtastic

The Heltec WiFi LoRa 32 V3 is the latest version of the popular IoT developer board that has won acclaim among developers and engineers since its debut in 2017. This versatile board features the powerful ESP32-S3FN8 microcontroller with a dual-core Xtensa® 32-bit LX7 processor that runs at up to 240 MHz. The new V3 version retains all the key features of its predecessor, such as Wi-Fi, Bluetooth, LoRa and the built-in OLED display, while offering improved performance and reliability. This makes it ideal for applications in smart cities, agriculture, home automation, security systems, industrial control, remote meter reading and IoT project developers. Key features:

* Microprocessor: ESP32-S3FN8 (Xtensa® 32-bit LX7 dual-core processor, up to 240 MHz)

* LoRa chip: SX1262

* USB interface: Type-C with full surge, short-circuit and ESD protection

* OLED display: 0.96-inch, 128x64 dot matrix

* Communication: Wi-Fi, LoRa, Bluetooth 5.0 (LE)

* Interfaces: 2*18 pins, 2x I2C, 2x SPI, 3x UART, 7x ADC1, 2x ADC2, 7x Touch

* Memory: 384KB ROM, 512KB SRAM, 8MB Flash

* Power supply: 3.7V lithium battery with automatic USB/battery power switching and charge management

Kit includes:

WiFi LoRa 32 (V3) x1

LoRa antenna x1

Battery connector SH1.25×2 x1

2.54*18 Header pin x2

Frequently asked questions:

* Can the built-in 2.4 GHz antenna be replaced?

-The 2.4 GHz antenna is a spring antenna and there is no additional interface on the board for 2.4 GHz wireless signals.

* Can WiFi and Bluetooth ESP32 be used at the same time?

-No, the WiFi LoRa 32 does not have an external PSRAM, if your application requires Bluetooth and Wi-Fi to be used at the same time, you can refer to this product: the Heltec Wireless Bridge.

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What programming methods does it support? -Arduino

-Micro Python -Platform.io -Espressif IDE

* Is the V2 code compatible with V3? -No, the MCU is different.

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The Meshtastic screen has a problem with the digital front-end?

This is caused by the meshtastic setting. Changing the default screen to SSD1306 may solve the problem. The specific steps are as follows: "Radio configuration"→"Display"→"Override OLED auto-detect"→"SSD1306"

The Heltec WiFi LoRa 32 V3 board is the perfect solution for professional IoT projects where reliability, performance and multi-functionality are key.