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Module Overview
1.2 Description
ESP32-MINI-1 and ESP32-MINI-1U are highly-integrated, small-sized Wi-Fi + Bluetooth + Bluetooth LE MCU
modules that have a rich set of peripherals. The modules are ideal choices for a wide variety of IoT applications,
ranging from home automation, smart building, consumer electronics to industrial control, especially suitable for
applications within a compact space, such as bulbs, switches and sockets.
ESP32-MINI-1 comes with a on-board PCB antenna, and ESP32-MINI-1U with a connector for external antenna.
Both ESP32-MINI-1 and ESP32-MINI-1U have two variants:
• 85 °C version: integrating the ESP32-U4WDH chip
• 105 °C version: integrating the ESP32-U4WDH chip
In this datasheet unless otherwise stated, ESP32-MINI-1 refers to both ESP32-MINI-1-N4 and
ESP32-MINI-1-H4, whereas ESP32-MINI-1U refers to both ESP32-MINI-1U-N4 and ESP32-MINI-1U-H4.
The ordering information for ESP32-MINI-1 and ESP32-MINI-1U is listed as follows:
Table 1: Ordering Information
Module
Ordering code
Chip embedded
ESP32-U4WDH
ESP32-U4WDH
Module dimensions (mm)
ESP32-MINI-1 (85 °C version)
ESP32-MINI-1 (105 °C version)
ESP32-MINI-1U (85 °C version)
ESP32-MINI-1-N4
ESP32-MINI-1-H4
13.2 × 19.0 × 2.4
ESP32-MINI-1U-N4 ESP32-U4WDH
13.2 × 13.5 × 2.4
ESP32-MINI-1U (105 °C version) ESP32-MINI-1U-H4 ESP32-U4WDH
At the core of this module is ESP32-U4WDH*, an Xtensa 32-bit LX6 CPU that operates at up to 240 MHz. The
user can power off the CPU and make use of the low-power co-processor to constantly monitor the peripherals
for changes or exceeding of thresholds.
This ESP32 chip integrates a rich set of peripherals, ranging from capacitive touch sensor, SD card interface,
Ethernet, high-speed SPI, UART, I2S, I2C, etc.
For more information on ESP32 chips, please refer to ESP32 Series Datasheet.
1.3 Applications
• Generic Low-power IoT Sensor Hub
• Generic Low-power IoT Data Loggers
• Cameras for Video Streaming
• Over-the-top (OTT) Devices
• Speech Recognition
• Smart Building
• Industrial Automation
• Smart Agriculture
• Audio Applications
• Health Care Applications
• Wi-Fi-enabled Toys
• Wearable Electronics
• Retail & Catering Applications
• Image Recognition
• Mesh Network
• Home Automation
Espressif Systems
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ESP32-MINI-1 & MINI-1U Datasheet v1.2
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