uPesy ESP32 Wroom Low Power DevKit

The uPesy ESP32 Wroom Low Power DevKit is a miniature development board built on the ESP-WROOM-32D module from Espressif Systems, specifically engineered for battery-powered and energy-sensitive IoT applications. With a Deep Sleep current consumption below 15 µA, a built-in Li-Ion/Li-Polymer battery charger, and a USB-C connector, it is an ideal choice for projects where power efficiency is a priority alongside full ESP32 wireless capabilities.

The board retains the dual-core ESP32 processor with integrated 2.4 GHz Wi-Fi and Bluetooth Classic/BLE, and is breadboard-compatible with automatic code uploading support. GPIO35 is reserved for battery level monitoring and cannot be used as a general-purpose output.

Features

• Dual-core Xtensa 32-bit LX6 processor (ESP32-WROOM-32D)
• Variable clock frequency from 80 MHz to 240 MHz with per-core power control
• Deep Sleep consumption below 15 µA — ideal for battery-operated sensors
• Built-in Li-Ion / Li-Polymer battery charger via USB-C
• 40 MHz crystal oscillator and PCB antenna
• Automatic code uploading — no manual BOOT button press needed
• Breadboard-compatible form factor
• MicroPython pre-installed
• GPIO35 reserved for battery level monitoring (not usable as output)

Specifications

Parameter	Value
SoC	ESP32-WROOM-32D (dual-core Xtensa LX6)
Clock Speed	80 – 240 MHz
Flash	4 MB
SRAM	520 KB
Wi-Fi	802.11 b/g/n, 2.4 GHz
Bluetooth	Classic 4.2 + BLE
Deep Sleep current	< 15 µA
Battery charging	Li-Ion / Li-Polymer via USB-C
GPIO	30 pins (GPIO35 reserved for battery monitoring)
ADC	18 channels (12-bit)
DAC	2 channels (8-bit)
Operating Voltage	3.3 V
Input Voltage	5 V (USB-C)

Device Technical Documentation

Download datasheets and manuals for the uPesy ESP32 Wroom Low Power DevKit

uPesy ESP32 Wroom Low Power DevKit Product page uPesy ESP32 Wroom Low Power DevKit Datasheet