Heltec Automation Automation WiFi Kit 32 V3 ESP32-S3 Dev Board w/ OLED & Battery
Heltec Automation Automation WiFi Kit 32 V3 ESP32-S3 Dev Board w/ OLED & Battery - Image 2
SKU: IOWC-1813
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Heltec Automation Automation WiFi Kit 32 V3 ESP32-S3 Dev Board w/ OLED & Battery

₹1,469.00 (Inclusive of all taxes)
Out of Stock

The Heltec Automation WiFi Kit 32 V3 is an Arduino-compatible IoT development board built around the ESP32-S3FN8 chip, featuring integrated Wi-Fi/Bluetooth 5.1, a 0.96-inch OLED display, and onboard Li-Po battery management for portable, low-power wireless applications.

Features

  • Powered by the ESP32-S3FN8 dual-core LX7 processor (up to 240 MHz) with 8MB flash and 512KB SRAM for robust IoT firmware development.
  • Integrated 2.4GHz Wi-Fi (802.11 b/g/n) and Bluetooth 5.1 dual-mode connectivity for local wireless control and mesh networking.
  • Onboard 0.96-inch 128×64 OLED display for real-time debugging, sensor data visualization, and system status monitoring.
  • Complete Li-Po battery management system with charge/discharge control, overcharge protection, and automatic USB/battery power switching.
  • Development-friendly with Type-C USB (CP2102 serial), full Arduino IDE support, and extensive GPIO broken out via 2×18 pin headers.

Out of stock

Description

The Heltec Automation Automation WiFi Kit 32 (V3) is a fully integrated development platform designed for IoT makers and embedded engineers. It combines the processing power of Espressif’s ESP32-S3FN8 dual-core microcontroller with comprehensive wireless connectivity, a built-in display, and robust power management in a single, compact board.

Engineered for portable and low-power applications, the board includes a dedicated lithium-polymer battery management circuit supporting 3.7V cells. This system handles charging, discharge monitoring, and automatic power source selection between USB and battery, enabling true field deployments. The integrated 2.4GHz PCB antenna provides reliable Wi-Fi and Bluetooth LE connectivity for smart home automation, sensor telemetry, and edge computing projects.

Key Features

  • ESP32-S3FN8-based core with dual-core Xtensa LX7 CPU, 8MB SiP flash, and ample SRAM for complex IoT applications.
  • Integrated 0.96-inch monochrome OLED screen (128x64 pixels) for displaying debug logs, sensor readings, or UI elements without external hardware.
  • Onboard CP2102 USB-to-serial converter for seamless firmware flashing and serial communication via a modern Type-C USB port.
  • Comprehensive Li-Po battery support including charging circuit, voltage monitoring, and automatic power path switching between USB and battery input.
  • Full-featured wireless suite with 2.4GHz 802.11 b/g/n Wi-Fi and Bluetooth 5.1 (including Bluetooth Mesh) for versatile connectivity.
  • Robust board design incorporating ESD protection, RF shielding, and short-circuit protection for reliable operation in various environments.
  • Extensive GPIO access through two 18-pin 2.54mm headers, compatible with a wide range of sensors, actuators, and shields.
  • Officially supported by the Arduino development environment, with additional support for ESP-IDF and MicroPython for advanced users.

Applications

  • Smart home automation hubs and wireless sensor nodes with local display feedback.
  • Portable data loggers and environmental monitoring stations powered by Li-Po batteries.
  • Prototyping and development for Bluetooth Mesh networks and Wi-Fi-enabled IoT devices.
  • Educational tools for learning embedded systems, wireless communication, and low-power design.
  • DIY maker projects requiring a compact, all-in-one board with display and wireless connectivity.

Technical Specifications

Microcontroller/SoCESP32-S3FN8 (Xtensa 32-bit LX7 dual-core, up to 240 MHz)
Wireless ProtocolsWi-Fi 802.11 b/g/n (2.4GHz), Bluetooth 5.1 (BLE & Classic)
Flash Memory8 MB
SRAM512 KB
Display0.96-inch OLED, 128 x 64 pixels
USB InterfaceType-C with CP2102 Serial Converter
Power Supply5V via USB, 3.7V via SH1.25 Li-Po Battery Connector
Battery ManagementIntegrated Charging, Overcharge Protection, Auto-Switching
GPIO Interface2 x 18-pin 2.54mm Headers
Operating Temperature-20°C to 70°C
Dimensions (LxW)50.2 mm x 25.5 mm
WeightApprox. 25 g

Frequently Asked Questions

How do I program the Heltec Automation WiFi Kit 32 V3 using the Arduino IDE?

First, install the ESP32 board support via the Arduino Boards Manager using the URL https://raw.githubusercontent.com/Espressif/Arduino-esp32/gh-pages/package_esp32_index.json. Select 'Heltec Automation WiFi Kit 32' as your board. Connect the board via the Type-C USB port. The onboard CP2102 driver should auto-install on most OSes. Use the standard Upload command; the OLED will often display boot status. Ensure you have the correct COM port selected in the Tools menu for successful flashing and serial monitoring.

What is the procedure for powering the board with a Li-Po battery?

Connect a standard 3.7V Li-Po battery to the onboard 2-pin SH1.25 connector, observing polarity. The integrated power management IC (PMIC) will handle charging when USB is connected and automatically switch to battery power when USB is removed. The charging current is typically limited to safe levels, and overcharge protection is included. You can monitor battery voltage via an ADC pin in your firmware. For lowest power consumption, utilize the ESP32-S3's deep sleep modes, which can extend battery life to weeks or months depending on your sensing interval.

Can I use the onboard OLED display with both Arduino and ESP-IDF?

Yes. For Arduino, use the built-in 'U8g2' or 'SSD1306' libraries included in the Heltec Automation board package to easily initialize the I2C display and draw graphics. For ESP-IDF, you can use the official esp-idf-lib component for SSD1306 or implement a direct I2C driver. The display is connected via I2C (default SDA/SCL pins are defined in the board variant file). Example code from Heltec Automation's GitHub repository provides basic text and shape drawing functions to get started quickly in either environment.

Package Includes

  • 1 x Heltec Automation WiFi Kit 32 (V3) Development Board
  • 1 x SH1.25 (2-pin) Battery Cable

Additional Information

Weight 0.025 kg
Dimensions 5.02 × 2.55 cm

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