ESP32S 38Pin Development Board - WiFi & Bluetooth IoT
ESP32S 38Pin Development Board (WiFi + Bluetooth)
The ESP32S 38Pin Development Board integrates a dual-core ESP32 microcontroller with WiFi and Bluetooth Classic/BLE. It’s designed for wireless IoT projects, sensor logging, and rapid prototyping. Built-in USB programming and an onboard antenna let you start a project in minutes.
Key Specifications
| Specification | Value |
|---|---|
| Chip | ESP32-D0WDQ6 (dual-core Xtensa LX6) |
| Clock Speed | Up to 240 MHz |
| Flash Memory | 4 MB (external SPI flash) |
| SRAM | 520 KB |
| Wireless | WiFi 802.11 b/g/n, Bluetooth 4.2 BR/EDR + BLE |
| GPIO Pins | 26 (multiplexed with ADC, DAC, touch, SPI, I2C, I2S) |
What You Can Build With This
- WiFi‑enabled LED matrix or NeoPixel controller
- BLE beacon for asset tracking or indoor positioning
- MQTT‑based home automation hub with sensor nodes
- Weather station that pushes data to a cloud dashboard
Compatibility
Works with Arduino IDE, PlatformIO, MicroPython, and ESP-IDF. All GPIOs run at 3.3 V logic; use level shifters when interfacing 5 V modules. Breadboard-friendly pin headers let it connect directly to standard sensors, OLED displays, and relay modules.
Wiring Notes
Power and program through the Micro USB port. The board regulates 5 V down to 3.3 V. Each GPIO pin can source or sink up to 12 mA – drive heavy loads with a transistor or MOSFET.
Why Buy from Compoden
Every component is sourced from verified suppliers and tested for compatibility before listing. We've spent 10 years building projects for makers, schools, and institutions across India. Ships from Bengaluru in 3-5 days. If defective on arrival, replace within 7 days.
Is this compatible with Arduino IDE?
Yes. Install the ESP32 board package through Boards Manager and select “ESP32 Dev Module”. The pin definitions map cleanly to standard sketches.
Can I use WiFi and Bluetooth at the same time?
WiFi and Bluetooth share the radio, but they can coexist with proper software arbitsration. The ESP32 handles automatic time‑slicing, so dual‑mode applications work well.
What is the typical Bluetooth range?
In open air the range is about 10 m for BLE and similar for Classic Bluetooth. Walls and interference can reduce it; adding an external antenna (if the module supports it) can extend range.
📦 Free Setup Handoff Document Included
Every Compoden order includes a free setup handoff document — step-by-step instructions to get your component working within minutes. Download it via QR code on your package. The handoff document is also trained to help you troubleshoot the majority of problems.
Ask Soldr above what you can build with this — it knows every Compoden kit this part appears in.
Shipping Information
- Prepaid Orders: ₹75 for orders up to ₹999, FREE shipping above ₹999
- COD Orders: ₹125 shipping + ₹50 COD fee = ₹175 total
- Delivery Timeline: Dispatch in 1-2 days, delivery in 2-7 days depending on location
Returns & Warranty
- 7-Day Return: Manufacturing defects only (approval required)
- Warranty: 7 days from delivery
- Non-Returnable: Batteries, consumables, cut wires, clearance items