- ESP32-U4WDH
- Basic variant
- 4MB flash
- High temperature variant
- 4MB flash
- N4: Standard 4MB flash variant, perfect for most compact IoT applications where space and cost matter most.
- H4: High-temperature 4MB flash variant, designed for industrial and outdoor projects where reliability in extreme heat is a must.
- Small size: 13.2 x 19 x 2.4 mm
- 2.4 GHz Wi-Fi and Bluetooth Classic/LE
- Rich set of peripherals
- Wide operating temperature range: -40°C ~ 85°C
- Integrated PCB antenna
- Perfect for smart home, building, and industrial control

ESP32-MINI-1
ESP32-MINI-1 is a highly-integrated, small-sized Wi-Fi+Bluetooth®+Bluetooth® LE MCU module that has a rich set of peripherals. This module is an ideal choice 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 Module Variants
ESP32-MINI-1-N4
ESP32-MINI-1-H4
The ESP32-MINI-1 series packs the power of Espressif’s ESP32 into an ultra-compact form factor, making it perfect for designs where every millimeter counts. Despite its small size, it offers dual-core processing, Wi-Fi, and Bluetooth connectivity-ideal for wearables, portable electronics, and space-constrained IoT devices.
Compared to larger ESP32 modules like the WROOM or WROVER series, the MINI-1 is designed for minimal footprint and lower power consumption, without sacrificing wireless performance. If you need something that can hide inside a slim enclosure or battery-powered gadget, this is your go-to choice.
The lineup is simple:
In short-ESP32-MINI-1 delivers full ESP32 performance in a tiny package. Choose the standard version for everyday IoT designs, or the high-temp model for rugged, heat-tolerant deployments.
Note: Variants may have different features, flash sizes, and PSRAM configurations. Check the individual module pages for detailed specifications.
About ESP32-MINI-1
ESP32-MINI-1 is a compact Wi-Fi + Bluetooth + Bluetooth LE module based on the ESP32-U4WDH chip, ideal for space-constrained IoT applications.