Heltec Automation ESP32 WiFi Kit 32 V3 mit OLED Display

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Product details

The Heltec ESP32 WiFi Kit 32 V3 is a powerful development board for IoT applications. It is based on the ESP32-S3FN8 processor, which is clocked at up to 240 MHz and supports both Wi-Fi and Bluetooth 5. Compared to its predecessor, the power consumption in deep sleep mode has been significantly reduced, and the USB interface has been upgraded from Micro-USB to USB-C. Additionally, an improved RF circuit ensures optimized signal transmission. The board features a built-in 0.96-inch OLED display that can be used to show debugging information or system status. Another highlight is the integrated lithium battery management system, which allows for safe charging and discharging. The numerous GPIO interfaces and communication protocols such as UART, SPI, and I2C make it ideal for versatile applications. Whether for smart homes, industrial automation, or DIY projects, the Heltec ESP32 WiFi Kit 32 V3 offers a powerful and flexible platform.

Technical specifications:
Manufacturer: Heltec Automation
Processor: ESP32-S3FN8 (Xtensa® 32-bit LX7 Dual-Core)
Memory: 384 KB ROM, 512 KB SRAM, 16 KB RTC-SRAM, 8 MB Flash
Interfaces: USB-C, 2x 1.25 mm lithium battery connector, 2x 18-pin header
Communication: Wi-Fi 802.11 b/g/n, Bluetooth 5.0, Bluetooth Mesh
Battery operation: Supports 3.7V lithium batteries
Power consumption: Deep sleep mode <10 µA
Operating temperature: -20°C to 70°C
Dimensions: 50.2 x 25.5 x 10.2 mm
Weight: 23 g

Included in the package:
1x Heltec ESP32 WiFi Kit 32 V3 with OLED display
1x SH1.25 LiPo connection cable.

Key specifications

Development board type
Kit
Memory
0.51 MB
Processor family
Tensilica
Processor type
ESP32
Clock speed
240 MHz
Number of cores
2
Item number
54397937

General information

Manufacturer
Heltec Automation
Category
Development boards + Kits
Release date
3.2.2025

Development board properties

Development board type
Kit
Processor family
Tensilica
Processor type
ESP32
Clock speed
240 MHz
Memory
0.51 MB
Number of cores
2
Flash memory
8000 kB

Power supply

Power supply
Battery operatedUSB power delivery
Operating voltage
3.70 V

Wireless transmission

Wireless transmission
BluetoothWi-Fi
Wi-Fi standard
Wi-Fi 4 / 802.11n
Bluetooth version
5.0

Connections

USB ports
USB-C

Origin

Country of origin
China

Voluntary climate contribution

CO₂-Emission
Climate contribution

Scope of delivery

Scope of delivery
1x Heltec ESP32 WiFi Kit 32 V3 with OLED display1x SH1.25 LiPo connection cable

Product dimensions

Length
50.20 mm
Width
25.50 mm
Height
10.20 mm
Weight
23 g

30-day right of returnReturn policy
24 Months Warranty (Bring-in)Warranty provisions

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Reviews & Ratings

Warranty score

How often does a product of this brand in the «Development boards + Kits» category have a defect within the first 24 months?

Source: Digitec Galaxus
  • Heltec Automation
    Not enough data
  • 1.Delock
    0 %
  • 1.Espressif
    0 %
  • 1.Tru Components
    0 %
  • 1.Whadda
    0 %

Warranty case duration

How many working days on average does it take to process a warranty claim from when it arrives at the service centre until it’s back with the customer?

Source: Digitec Galaxus
  • Heltec Automation
    Not enough data
  • 1.Arduino
    0 days
  • 1.Purecrea
    0 days
  • 1.Shelly
    0 days
  • 1.WaveShare
    0 days

Return rate

How often is a product of this brand in the «Development boards + Kits» category returned?

Source: Digitec Galaxus
  • Heltec Automation
    Not enough data
  • 1.Shelly
    0.1 %
  • 2.Delock
    0.4 %
  • 3.Whadda
    0.5 %
  • 4.Espressif
    0.7 %
Source: Digitec Galaxus