The ESP32 Development Board (ESP-WROOM-32) is the high-performance successor to the ESP8266, offering a massive leap in processing power and connectivity. At Electrapac, we recommend this board as the definitive choice for modern IoT projects that require both Wi-Fi and Bluetooth capabilities in a single, energy-efficient package.

Product Overview

The ESP32 is powered by a 32-bit Dual-Core 240MHz Processor, allowing one core to handle wireless connectivity while the other runs your complex application code. Unlike its predecessors, it includes Dual-Mode Bluetooth (Classic and Low Energy), making it compatible with everything from old smartphones to the latest wearable sensors. With a rich set of peripherals like touch sensors, Hall effect sensors, and high-speed SPI/I2C, it is a complete "System on a Chip" (SoC).

Key Features for Electrapac Customers

• Dual-Core Efficiency: Multitask like a pro. Use one core for time-critical sensor reading and the other for maintaining a stable Wi-Fi web server.

• Hybrid Connectivity: Use Wi-Fi for long-range cloud data logging and Bluetooth Low Energy (BLE) to communicate directly with your smartphone without draining the battery.

• Capacitive Touch Pins: Features 10 internal capacitive touch sensors—meaning you can turn a piece of copper tape or a metal screw into a touch-sensitive button without extra hardware.

• Ultra-Low Power Consumption: Includes a "Deep Sleep" mode that consumes as little as 10µ A, making it perfect for battery-powered remote sensors that only wake up once an hour.

• Extensive Security: Supports hardware-accelerated encryption (AES, SHA-2, RSA, ECC) to keep your IoT data secure.

Pinout & Setup Guide

The ESP32 is highly flexible, but keep these tips in mind for your www.electrapac.com build:

1. EN (Reset) & Boot Buttons: If your board doesn't enter "upload mode" automatically, hold the BOOT button while uploading your sketch in the Arduino IDE.

2. Analog Inputs: Unlike the Arduino Uno's 10-bit ADC, the ESP32 features a 12-bit ADC, providing much higher resolution for sensor readings ($0$ to $4095$).

3. 3.3V Logic: The ESP32 is not 5V tolerant. Always use logic level shifters when connecting to 5V sensors.

Primary Applications

• Smart Home Hubs: Acting as a central gateway for BLE sensors and uploading data to the cloud via Wi-Fi.

• Camera Streaming: Use the dual-core power to process images with an ESP32-CAM module for wireless security.

• Voice Processing: Creating basic voice-activated assistants or internet-streaming radio players.

• Wireless Mesh Networks: Connecting dozens of ESP32 units together to cover a large area without a central router.

Why Shop at Electrapac?

We source our ESP32 Development Boards with high-quality CP2102 USB-to-Serial chips to ensure you never have driver issues or connection drops during programming. At www.electrapac.com, we provide the high-speed "brains" that make your smartest ideas a reality.