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Heltec Meshtastic Wifi LoRa 32 V4 ESP32 SX1262 GPS 0.96inch OLED Solar Powered Dev-Board WiFi BLE Low Power For Arduino IoT

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From $31.17

Heltec Meshtastic Wifi LoRa 32 V4 ESP32 SX1262 GPS 0.96inch OLED Solar Powered Dev-Board WiFi BLE Low Power For Arduino IoT—

$31.17

Select Model

Select Package

From $31.17

Heltec Meshtastic Wifi LoRa 32 V4 ESP32 SX1262 GPS 0.96inch OLED Solar Powered Dev-Board WiFi BLE Low Power For Arduino IoT—

$31.17

The Story

Summary

● Heltec WiFi LoRa 32 V4 is a fully upgraded version of the classic LoRa development board. Since

its initial launch in 2017, this product series has been highly favored by developers and makers.

● Building upon the powerful features of its predecessors, the V4 version introduces comprehensive

optimizations in Transmit Power, power management, expandability and other hardware design.

● It is suitable for various IoT applications such as smart cities, agricultural monitoring, smart homes,

industrial control,security systems, and wireless meter reading, providing developers with a more

efficient and flexible development experience.

●More detailed WiFi LoRa 32(V4) introduction-Scan&Watch for more on

Youtube.

https://youtu.be/JRidd85Rm5U?si=RMP22rGAFhoh5dAM

Main Features

● Base on ESP32-S3R2 & SX-1262, supports Wi-Fi b/g/n, BLE, and LoRa communication.

● 2MB PSRAM and 16MB external Flash, more suitable for UI and complex system .

● High-power version with LoRa transmission power increased to 27±1dBm.

● Form factor and pin compatibility with WiFi LoRa 32 V3.

● PC casing protects the screen and integrates FPC 2.4G antenna.

● Added SH1.25-2P solar panel interface.

● Optimized lithium battery management.

● Added SH1.25-8Pin GNSS interface.

● USB Type-C interface with integrated voltage regulation, ESD protection, short-circuit protection,

and RF isolation design.

● Low power consumption is less than 20μA.

Compared to WiFi LoRa 32 V3 has made the following upgrades:

Docs & Resource

Name: Heltec Meshtastic Wifi LoRa 32 V4 ESP32 SX1262 GPS 0.96inch OLED Solar Powered Dev-Board WiFi BLE Low Power For Arduino IoT
Brand: TUFZEN
SKU: heltec-meshtastic-wifi-lora-32-v4-esp32-sx1262-gps-0-96inch-oled-solar-powered-dev-board-wifi-ble-low-power-for-arduino-iot
Availability: InStock

● User manual

https://docs.heltec.org/en/node/esp32/wifi_lora_32/index.html

●Heltec ESP(ESP32 &ESP8266) framework

https://github.com/Heltec-Aaron-Lee/WiFi_Kit_series

● Heltec ESP32 library

https://github.com/HelTecAutomation/Heltec_ESP32

● Schematic diagram

https://resource.heltec.cn/download/WiFi_LoRa_32_V4/Schematic

● Downloadable resource

https://resource.heltec.cn/download/WiFi_LoRa_32_V4

Pin Map

Specifications

Parameters	Description
MCU	ESP32-S3R2 (Xtensa®32-bit lx7 dual core processor)
LoRa Node Chip	SX1262
Frequency	High-power version: 863-928MHz Low-power version: 433, 470-510MHz
Max. TX Powe	High-power version: 28 ±1 dBm Low-power version: 21 ±1 dBm
Max. Receiving sensitivity	-137dBm@SF12 BW=125KHz
Wi-Fi	802.11 b/g/n, up to 150Mbps
Bluetooth	Bluetooth (LE), Bluetooth 5, Bluetooth Mesh
Hardware Resource	7ADC1 + 2ADC2; 7Touch; 3UART; 2I2C; 2SPI; etc.
Memory	384KB ROM; 512KB SRAM; 16KB RTC SRAM; 2MB PSRAM; 16MB Flash
Interface	Type-C USB; SH1.252 Pin lithium battery interface; SH1.258 Pin interface; LoRa ANT(IPEX1.0); 2.4G ANT(IPEX1.0)
Battery applicable	3.3-4.4V lithium battery
Operating Temperature	-20 ~ 70 ℃
Dimensions	51.7 * 25.4* 10.7mm

Packing List

The default packing list without selecting any accessories is as follows:

1.Standard configuration (with spring antenna)

2.Standard configuration+GPS module (with spring antenna)

FAQ

Q1: 2.4GHz Antenna

A1: The default 2.4G FPC antenna is located on the side of the plastic screen bracket.

If you wish to use an IPEX-connected 2.4G antenna, you need to remove the inductor marked as ① in

the diagram below, and add a 0-ohm resistor (or other conductive metal or cable) at the position

marked ② to connect to the IPEX interface.

Q2: What development methods does it support?

A2:

●Arduino

●Micro Python

●Platform.io

●Espressif IDE

We strongly recommend using Arduino. We have complete technical support and provide complete

LoRaWAN code for ESP32 Arduino framework.

Q3: What’s the battery socket type?

A3: You can find this type of socket by search “SH1.25 x 2”.

Q4: Can I order a version without the OLED display?

A4: Of course, you can contact our sales staff and provide your ideas.

Q5: Are V3 and V4 compatible?

A5: They are compatible in most scenarios.

Since V4 uses the same series of chips as V3, features the same OLED, and has an almost

identical pin layout, V3 and V4 can be used interchangeably in the majority of cases.

However, due to the increased transmit power, the transmit power settings in some code may no

longer correspond directly to the actual output.

Q6: Failed to upload code

A6: Please try the following steps:

1.Try using a different USB cable.

2.Enter BootLoader mode. There are two methods to enter this mode:

●Hold down the PRG button, connect the USB-C cable, then release the PRG button.

●Connect the USB-C cable, hold down the PRG button, press the RST button once, then release

the PRG button.