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Heltec Automation ESP32 LoRa V4 Development Kit

Heltec Automation ESP32 LoRa V4 Development Kit

$134.99 USD
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Build your next IoT project around LoRa, Wi-Fi, and Bluetooth in one compact ESP32 development board.

  • Wireless communication: The SX1262 supports 863–928MHz LoRa, with up to 28 ±1 dBm transmit power and -137dBm receiving sensitivity; you also get Wi-Fi and Bluetooth 5, BLE, and Bluetooth Mesh.
  • Room for complex projects: The ESP32-S3R2 dual-core processor pairs with 2MB PSRAM and 16MB Flash for your interfaces and applications.
  • Flexible connections: Use USB-C, the lithium battery interface for 3.3–4.4V batteries, or the SH1.25-8-pin interface for GNSS expansion.
  • Compact development platform: At 51.7 × 25.4 × 10.7mm, it operates from -20 to 70°C and supports Arduino, MicroPython, PlatformIO, and Espressif IDE.

Parameters

V3

V4

MCU

ESP32-S3FN8

ESP32-S3R2

Flash

8MB (integrated)

16MB (external)

USB to Serial Chip

CP2102

Removed CP2102

Power Management

Standard Li-ion management IC

Upgraded IC supporting solar input

Solar Input

Not available

Added SH1.25-2P interface

LoRa TX Power

21±1dBm

28±1dBm

2.4G Antenna

Metal spring antenna

FPC antenna + IPEX connector

GPS Interface

Not available

Added SH1.25-8Pin interface

Peripheral I/F

36-pin

40-pin

Screen Connection

Soldered

Soldered + B2B connector

Pin Craft

Silver-plated

Gold-plated

Screen Bracket

Partial protection

Full protection

Parameters

Description

MCU

ESP32-S3R2 (Xtensa®32-bit lx7 dual core processor)

LoRa Chip

SX1262

Frequency

High-power version: 863-928MHz
Low-power version: 433, 470-510, 863-928MHz

Max. TX Power

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

7*ADC1 + 2*ADC2;
7*Touch;
3*UART;
2*I2C;
2*SPI; etc.

Memory

384KB ROM; 512KB SRAM; 16KB RTC SRAM; 2MB PSRAM; 16MB Flash

Interface

Type-C USB;
SH1.25*2 Pin lithium battery interface;
SH1.25*8 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
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