Espressif ESP32 Module ESP32-C3-WROOM-02U-N4 4MB SPI Flash Multiprotocol Module

Product Specification

Espressif ESP32 Module ESP32-C3-WROOM-02U-N4 4MB SPI Flash, IPEX Antenna, -40 C +85 C

> Description

ESP32-C3-WROOM-02 and ESP32-C3-WROOM-02U are two general-purpose Wi-Fi and Bluetooth LE module. The rich set of peripherals and high performance make the two modules an ideal choice for smart homes, industrial automation, health care, consumer electronics, etc.

ESP32-C3-WROOM-02 and ESP32-C3-WROOM-02U both feature a 4 MB external SPI flash.

ESP32-C3-WROOM-02 comes with a on-board PCB antenna. ESP32-C3-WROOM-02U comes with a connector for an external antenna. ESP32-C3-WROOM-02 and ESP32-C3-WROOM-02U have two variants:

• 85 °C version operating at –40 ~ 85 °C

• 105 °C version operating at –40 ~ 105 °C

The two variants only differ in ambient operating temperature. In this datasheet unless otherwise stated, ESP32-C3-WROOM-02 refers to the ESP32-C3-WROOM-02 module in 85 °C and 105 °C versions, and ESP32-C3-WROOM-02U refers to the ESP32-C3-WROOM-02U module in 85 °C and 105 °C versions.

> Applications

• Smart Home

– Light contro

l – Smart button

– Smart plug

– Indoor positioning

• Industrial Automation

– Industrial robot

– Mesh network

– Human machine interface (HMI)

– Industrial field bus

• Health Care

– Health monitor

– Baby monitor

• Consumer Electronics

– Smart watch and bracelet

– Over-the-top (OTT) devices

– Wi-Fi and bluetooth speaker

– Logger toys and proximity sensing toys

• Smart Agriculture

– Smart greenhouse

– Smart irrigation

– Agriculture robot

• Retail and Catering

– POS machines

– Service robot

• Audio Device

– Internet music players

– Live streaming devices

– Internet radio players

• Generic Low-power IoT Sensor Hubs

• Generic Low-power IoT Data Loggers

> Features

CPU and On­Chip Memory

• ESP32-C3 embedded, 32-bit RISC-V single-core processor, up to 160 MHz

• 384 KB ROM

• 400 KB SRAM (16 KB for cache)

• 8 KB SRAM in RTC Wi­Fi

• IEEE 802.11 b/g/n-compliant

• Center frequency range of operating channel: 2412 ~ 2484 MHz

• Supports 20 MHz, 40 MHz bandwidth in 2.4 GHz band

• 1T1R mode with data rate up to 150 Mbps

• Wi-Fi Multimedia (WMM)

• TX/RX A-MPDU, TX/RX A-MSDU

• Immediate Block ACK

• Fragmentation and defragmentation

• Transmit opportunity (TXOP)

• Automatic Beacon monitoring (hardware TSF)

• 4 × virtual Wi-Fi interfaces

• Simultaneous support for Infrastructure BSS in Station mode, SoftAP mode, Station + SoftAP mode, and promiscuous mode Note that when ESP32-C3 series scans in Station mode, the SoftAP channel will change along with the Station channel

• Antenna diversity

Bluetooth®

• Bluetooth LE: Bluetooth 5, Bluetooth mesh

• Speed: 125 Kbps, 500 Kbps, 1 Mbps, 2 Mbps

• Advertising extensions

• Multiple advertisement sets

• Channel selection algorithm #2 Peripherals

• GPIO, SPI, UART, I2C, I2S, remote control peripheral, LED PWM controller, general DMA controller, TWAI® controller (compatible with ISO 11898-1, i.e. CAN Specification 2.0), USB Serial/JTAG controller, temperature sensor, SAR ADC Integrated Components on Module

• 40 MHz crystal oscillator

• 4 MB SPI flash Antenna Options

• On-board PCB antenna (ESP32-C3-WROOM-02)

• External antenna via a connector (ESP32-C3-WROOM-02U) Operating Conditions

• Operating voltage/Power supply: 3.0 ~ 3.6 V

• Operating ambient temperature

> Specifications  

> Trading Guide

Shipping:

---Delivery period: For in-stock parts, orders are estimated to ship out in 3 days,Once shipped, estimated

   delivery time depends on the below carriers you chose:

» DHL Express, 3-7 business days.
» DHL eCommerce,12-22 business days.
» FedEx International Priority, 3-7 business days
» EMS, 10-15 business days.
» Registered Air Mail, 15-30 business days.

---Shipping rates: After confirming the order, we will evaluate the shipping cost based on the weight of the

    goods.

---Shipping option: We provide DHL, FedEx, EMS, SF Express, and Registered Air Mail international shipping.

---Shipping tracking: We will notify you by email with tracking number once order is shipped.

Returning warranty:

---Returning: Returns are normally accepted when completed within 30 days from date of shipment.Parts

    should be unused and in original packaging. Customer has to take charge for the shipping.

Warranty:

---All Retechip purchases come with a 30day money back return policyThis warranty shall not apply to any

   item where defects have been caused by improper customer assembly, failure by customer to follow

   instructions,product modification, negligent or improper operation.

Ordering:

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