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ESP32MINI1 ESP32MINI1U
Datasheet
2.4 GHz WiFi + Bluetooth® + Bluetooth LE module Built around ESP32 series of SoC, Xtensa® dualcore 32bit LX6 microprocessor 4 MB flash 28 GPIOs, rich set of peripherals Onboard PCB antenna or external antenna connector
ESP32MINI1
ESP32MINI1U
www.espressif.com
Version 1.1 Espressif Systems Copyright © 2021
1 Module Overview
1 Module Overview
Note: Check the link or the QR code to make sure that you use the latest version of this document: https://espressif.com/sites/default/files/documentation/esp32-mini-1_datasheet_en.pdf
1.1 Features
CPU and OnChip Memory • ESP32-U4WDH embedded, Xtensa dual-core 32-bit LX6 microprocessor, up to 240 MHz • 448 KB ROM • 520 KB SRAM • 16 KB SRAM in RTC • 4 MB SPI flash
WiFi • 802.11b/g/n • Bit rate: 802.11n up to 150 Mbps • A-MPDU and A-MSDU aggregation • 0.4 µs guard interval support • Center frequency range of operating channel: 2412 ~ 2484 MHz
Bluetooth • Bluetooth v4.2 BR/EDR and Bluetooth LE specification • Class-1, class-2, and class-3 transmitter • AFH • CVSD and SBC
Peripherals • SD card, UART, SPI, SDIO, I2C, LED PWM, motor PWM, I2S, infrared remote controller, pulse counter, GPIO, touch sensor, ADC, DAC, Ethernet, TWAI® (compatible with ISO 11898-1, i.e. CAN Specification 2.0)
Integrated Components on Module • 40 MHz crystal oscillator
Antenna Options • ESP32-MINI-1: On-board PCB antenna • ESP32-MINI-1U: external antenna via a connector
Operating Conditions • Operating voltage/Power supply: 3.0 ~ 3.6 V • Operating ambient temperature: – 85 °C version module: –40 ~ 85 °C – 105 °C version module: –40 ~ 105 °C
Certification • RF certification: CE/FCC/IC/SRRC • Green certification: REACH/RoHS
Test • Reliability: HTOL/HTSL/uHAST/TCT/ESD
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ESP32-MINI-1 & MINI-1U Datasheet v1.1
1 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 Module dimensions (mm)
ESP32-MINI-1 (85 °C version) ESP32-MINI-1 (105 °C version)
ESP32-MINI-1-N4 ESP32-MINI-1-H4
ESP32-U4WDH ESP32-U4WDH
13.2 × 19.0 × 2.4
ESP32-MINI-1U (85 °C version) ESP32-MINI-1U-N4 ESP32-U4WDH ESP32-MINI-1U (105 °C version) ESP32-MINI-1U-H4 ESP32-U4WDH
13.2 × 13.5 × 2.4
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, Hall 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 • Image Recognition • Mesh Network • Home Automation
• Smart Building • Industrial Automation • Smart Agriculture • Audio Applications • Health Care Applications • Wi-Fi-enabled Toys • Wearable Electronics • Retail & Catering Applications
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ESP32-MINI-1 & MINI-1U Datasheet v1.1
Contents
Contents
1 Module Overview
2
1.1 Features
2
1.2 Description
3
1.3 Applications
3
2 Block Diagram
8
3 Pin Definitions
9
3.1 Pin Layout
9
3.2 Pin Description
10
3.3 Strapping Pins
12
4 Electrical Characteristics
14
4.1 Absolute Maximum Ratings
14
4.2 Recommended Operating Conditions
14
4.3 DC Characteristics (3.3 V, 25 °C)
14
4.4 Current Consumption Characteristics
15
4.5 Wi-Fi RF Characteristics
16
4.5.1 Wi-Fi RF Standards
16
4.5.2 Transmitter Characteristics
16
4.5.3 Receiver Characteristics
17
4.6 Bluetooth Radio
18
4.6.1 Receiver – Basic Data Rate
18
4.6.2 Transmitter – Basic Data Rate
19
4.6.3 Receiver – Enhanced Data R.