The ESP32-MINI-1 is a versatile Wi-Fi + Bluetooth + Bluetooth LE MCU module with powerful features and a wide range of peripheral interfaces, suitable for various IoT application scenarios such as smart homes, smart buildings, consumer electronics, and industrial control. The module is designed to be compact and small in size, making it especially ideal for applications with limited space, such as light bulbs, switches, and sockets.
The module comes in two variants:
- 85°C version
- 105°C version
Both variants feature a PCB onboard antenna and are equipped with a 4MB SPI flash. The information provided in this document applies to both types of modules.
Features
MCU
- Built-in ESP32-U4WDH chip, Xtensa single-core 32-bit LX6 microprocessor, supporting clock frequencies up to 160 MHz
- 448 KB ROM
- 520 KB SRAM
- 16 KB RTC SRAM
Wi-Fi
- Supports 802.11b/g/n
- 802.11n data rate up to 150 Mbps
- Supports A-MPDU and A-MSDU aggregation
- Supports 0.4μs guard interval
- Operating channel center frequency range: 2412~2484 MHz
Bluetooth
- Bluetooth® V4.2 BR/EDR and Bluetooth® LE standards
- Class-1, Class-2, and Class-3 transmitters
- CVSD and SBC
- AFH
Hardware
- Module interfaces: SD card, UART, SPI, SDIO, I2C, LED PWM, motor PWM, I2S, IR, pulse counter, GPIO, capacitive touch sensor, ADC, DAC, Two-Wire Automotive Interface (TWAI™, ISO11898-1 compliant)
- 40 MHz crystal oscillator
- 4 MB SPI flash
- Operating voltage/power supply voltage: 3.0~3.6V
- Recommended operating temperature range:
- 85°C version: -40~85°C
- 105°C version: -40~105°C
- Module dimensions: (13.2 x 19.0 x 2.4) mm
Certifications
- Environmental certifications: REACH/RoHS
ESP32-MINI-1/1U Module Comparison
| Module | Order Model Number | Internal Chip | Flash | PSRAM | Antenna | Dimensions (mm) |
|---|---|---|---|---|---|---|
| ESP32-MINI-1 (85°C version) | ESP32-MINI-1-N4 | ESP32-U4WDH | 4 MB | — | PCB onboard antenna | 13.2 × 19.0 × 2.4 |
| ESP32-MINI-1 (105°C version) | ESP32-MINI-1-H4 | ESP32-U4WDH | 4 MB | — | PCB onboard antenna | 13.2 × 19.0 × 2.4 |
| ESP32-MINI-1U (85°C version) | ESP32-MINI-1U-N4 | ESP32-U4WDH | 4 MB | — | IPEX external antenna connector | 13.2 × 13.5 × 2.4 |
| ESP32-MINI-1U (105°C version) | ESP32-MINI-1U-H4 | ESP32-U4WDH | 4 MB | — | IPEX external antenna connector | 13.2 × 13.5 × 2.4 |
Applications
- General low-power IoT sensor hub
- Smart buildings
- General low-power IoT data logger
- Industrial automation
- Camera video streaming
- Smart agriculture
- OTT TV Box/set-top box devices
- Audio equipment
- Voice recognition
- Health/medical/caregiving
- Image recognition
- Wi-Fi toys
- Mesh networks
- Wearable electronics
- Home automation
- Retail & Catering