D1 mini ESP32 WiFi + Bluetooth IoT Development Board (Based on ESPRESSIF ESP8266 Architecture) CP2104 chip Type-C interface

Weight 0.025 kg
Dimensions 3.42 × 2.56 cm
Supply Voltage

3.0 V ~ 3.6 V (VCC), 3.0V – 5.0V (USB and 5V)

Operating Voltage

3.3V (GPIO pins)

Power Consumption

30mA – 80mA (idle)

100mA – 240mA (WiFi/Bluetooth RX/TX)

10µA – 150µA (Deep Sleep)

5µA (RTC Timer Only)

Peripheral Interfaces

UART, SPI, I2C, LED PWM, Motor PWM, I2S, IR, pulse counter, GPIO, capacitive touch sensor, ADC, DAC

WiFi

802.11 b/g/n (802.11n up to 150 Mbps) @2.4 GHz ~ 2.5 GHz

Bluetooth

Bluetooth v4.2 BR/EDR and BLE specification

Operating Temperature

–40 °C ~ +85 °C

GPIO Pins

40 Available

Product Description

Designed with ultra-low power technology, it offers the full range of performance and features of the ESP32 chip. The pin arrangement provides compatibility with the modules developed for the D1 Mini Type-C ESP8266 while also offering fast WLAN, enhanced GPIO, Bluetooth functionality, and with its higher performance, a wider range of applications.

  • D1 Mini NodeMCU Type-C ESP32 ESP-WROOM-32 WLAN WiFi Bluetooth IoT Development Board 5V Compatible for Arduino
  • Designed with ultra-low power technology, it offers the full range of performance and features of the ESP32 chip. The pin arrangement provides compatibility with the modules developed for the D1 Mini ESP8266 while also offering fast WLAN, enhanced GPIO, Bluetooth functionality, and with its higher performance, a wider range of applications.
  • 100% compatible with Arudino IDE, Lua and Micropython, it shows robustness, versatility, and reliability in a wide variety of applications and power scenarios.
  • All I/O pins have interrupt, PWM, I2C and one-wire capability, except the pin DO.
  • Designed with ultra-low power technology, it offers the full range of performance and features of the ESP32 chip. The pin arrangement provides compatibility with the modules developed for the D1 Mini ESP8266 while also offering fast WLAN, enhanced GPIO, Bluetooth functionality, and with its higher performance, a wider range of applications.

Technical Details

RAM ‎LPDDR
Wireless Type ‎Bluetooth
Brand ‎ACEIRMC
Series ‎D1 Mini Type-C
Operating System ‎FreeRTOS
Item Weight ‎1.13 ounces
Package Dimensions ‎3.35 x 2.68 x 1.1 inches
Color ‎3pcs Type-C
Processor Brand ‎Espressif
Number of Processors ‎2
Manufacturer ‎ACEIRMC
ASIN ‎B0D1V336DL

Other Technical Details

Wi-fi 802.11 b/g/n/e/i
802.11 n (2.4 GHz), up to 150 Mbps
802.11 e: QoS for wireless multimedia technology
WMM-PS, UAPSD
A-MPDU and A-MSDU aggregation
Block ACK
Fragmentation and defragmentation
Automatic Beacon monitoring/scanning
802.11 i security features: pre-authentication and TSN
Wi-Fi Protected Access (WPA)/WPA2/WPA2-Enterprise/Wi-Fi Protected Setup (WPS)
Infrastructure BSS Station mode/SoftAP mode
Wi-Fi Direct (P2P), P2P Discovery, P2P Group Owner mode and P2P Power Management
UMA compliant and certified
Antenna diversity and selection
Compliant with Bluetooth v4.2 BR/EDR and BLE specification
Bluetooth Class-1, class-2 and class-3 transmitter without external power amplifier
Enhanced power control
+10 dBm transmitting power
NZIF receiver with -98 dBm sensitivity
Adaptive Frequency Hopping (AFH)
Standard HCI based on SDIO/SPI/UART
High speed UART HCI, up to 4 Mbps
BT 4.2 controller and host stack
Service Discover Protocol (SDP)
General Access Profile (GAP)
Security Manage Protocol (SMP)
Bluetooth Low Energy (BLE)
ATT/GATT
HID
All GATT-based profile supported
SPP-Like GATT-based profile
BLE Beacon
A2DP/AVRCP/SPP, HSP/HFP, RFCOMM
CVSD and SBC for audio codec
Bluetooth Piconet and Scatternet

 

The WEMOS D1 mini ESP32 squeezes Espressif’s dual-core ESP32-WROOM-32 module into the familiar 34 × 25 mm D1-mini footprint-so it drops straight into the huge ecosystem of D1-mini shields. Despite its tiny size it brings full-featured Wi-Fi 802.11 b/g/n and Bluetooth 4.2 (BLE + BR/EDR) connectivity to your IoT projects. 📡

A reliable CH340C USB-to-UART interface (auto-reset capable) lets you plug in via Micro-USB, flash code, and get serial logs with zero extra hardware. 🔌

Power is flexible: feed the board from 5 V on USB/VIN or directly from the regulated 3V3 pin. An on-board LDO and protective circuitry keep the ESP32 happy. ⚡️

The board sports a tiny PCB antenna for solid RF performance, plus RST and BOOT (IO0) push-buttons to simplify firmware flashing and recovery. 🚀

All GPIOs support PWM, many provide ADC, DAC, I²C, SPI, UART, and ten pads double as capacitive-touch sensors. Stack it beneath sensor, relay, or display shields and you’ve got a compact yet powerful connected gadget in minutes.

WEMOS D1 MINI ESP32 Dimensions

WEMOS D1 MINI ESP32 dimensions - height, width

The WEMOS D1 mini ESP32 pinout exposes 26 ESP32 GPIOs on the familiar D label headers-making it shield-compatible while retaining the ESP32’s rich peripherals.

Power rails include 5 V/VIN (USB or external), a regulated 3V3 output, and multiple GND pins. Current draw is typically 80 mA active but can drop to <10 µA in deep-sleep.

Default serial lines U0_TX (GPIO1) and U0_RX (GPIO3) connect to the CH340C for programming and logging. Need another UART? Use U2_TX (GPIO17) and U2_RX (GPIO16).

I²C defaults to SDA (GPIO21) and SCL (GPIO22)-changeable in software-and breaks out on the D2/D1 shield pins.

SPI: the primary VSPI bus maps to MOSI GPIO23MISO GPIO19SCK GPIO18, and CS GPIO5. An alternate HSPI bus lives on GPIO12–15 when a second SPI device is needed.

Analog: Eight ADC1 channels on GPIO32–GPIO39 remain usable while Wi-Fi is active. Extra ADC2 channels (e.g., GPIO0, 2, 4, 12–15, 25–27) share hardware with Wi-Fi. Dual 8-bit DAC outputs are on GPIO25 and GPIO26.

Capacitive-touch sensing is available on GPIO0, 2, 4, 12–15, 27, 32, 33, perfect for touch-buttons or gesture pads.

Every GPIO can generate PWM up to 40 kHz for LEDs, motors, or buzzers. Watch the boot-strap pinsGPIO0GPIO2, and GPIO15-which must be at the correct logic level (usually HIGH) at reset to boot normally.

With breadboard-friendly headers, shield compatibility, and the full might of an ESP32 module, the WEMOS D1 mini ESP32 pinout is your compact gateway to advanced connected projects.

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