# ESP32 development board, dual core, WiFi, Bluetooth, 4MB, CP2104

- Page: https://sigmanortec.ro/en/esp32-development-board-dual-core-wifi-bluetooth-4mb-cp2104
- Price: 48.15 RON
- Availability: In stock; 1-2 zile
- Reference: 9148 · EAN: 5948338772020
- Category: Mechatronics and IoT > Development Board > IoT Development Boards, Wireless
- Package (shipping data): 0.009 kg
- Updated: 2026-09-23
- Shop: [Sigmanortec.ro](https://sigmanortec.ro/en/llms.txt)
- Prices: RON, VAT included; prices and stock as of 2026-10-22 01:16 (Europe/Bucharest)

## Description

Ideal for IoT and automation projects, this dual core ESP32 board offers 2.4GHz WiFi and Bluetooth 4.2 for stable connectivity, 4MB Flash for complex applications and CP2104 interface for fast programming in Arduino IDE or MicroPython. It is powered by MicroUSB or a 3.7V Li-Ion battery with automatic charging, optimized for low consumption.
NodeMCU development board, Lolin32, with WiFi 2.4GHz and Bluetooth v4.2 BR/EDR/BLE, based on the ESP32 chip.
The board is ideal for IoT (Internet of Things) applications and the chip is developed with TSMC ultra low power technology for low consumption.
To keep consumption as low as possible, the amplifier can be adjusted to find the ideal ratio between communication power, data rate and current consumption.
It also offers the possibility of powering through the MicroUSB connector or directly from a 3.7V (lithium) battery through the dedicated side connector that will automatically charge when the board is powered from an external source.
Arduino IDE and MicroPython can be used for programming.
Specifications:
Supply voltage: 3.3 - 5VDC
Operating voltage: 3.3VDC
Communication IC: CP2104
Digital I/O Pins: 26
Input Analog Pins: 12
Maximum battery charging current: 500mA
Maximum CPU frequency: 240MHz
Chip: ESP32-WROO-32
ESP32 version: REV1
Default firmware: MicroPython
CPU: Dual core Xtensa (or single core). 32 bit LX6 microprocessor, operating frequency at 160 or 240 MHZ and performance up to 600DMIPS
SRAM: 520KB
Flash: 4MB
Wi-Fi: 802.11 b/g/n
Bluetooth: v4.2 BR/EDR and BLE
12 bit SAR DC up to 18 channels
Temperature sensor: Yes
SDIO/SPI/UART interface
Programming with Arduino IDE:
To program the board with the Arduino IDE, add the following URL to Preferences: https://dl.espressif.com/dl/package_esp32_index.json
Select in Boards->ESP32 Arduino->Wemos Lolin32
Before uploading the code to the board via Arduino IDE, briefly connect pin 0 to GND. Disconnect after completing the upload.