EMC3380-Development Board 2.4/5GHz Dual-Mode WiFi BLE 5.0 for Arduino - lemisfix
EMC3380-Development Board 2.4/5GHz Dual-Mode WiFi BLE 5.0 for Arduino - lemisfix

EMC3380-Development Board 2.4/5GHz Dual-Mode WiFi BLE 5.0 for Arduino

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EMC3380 is a high-performance module mainly used in voice applications of the Internet of Things. It has a dual-core microcontroller with ultra-high integration, supports 2.4/5GHz dual-band Wi-Fi and BLE 5.0 wireless communication technology, and includes large capacity Flash, RAM, audio codec and audio digital coprocessor to meet various complex requirements in speech application.

Application Scenario:Smart Home Appliances

Input Voltage: 2.7V ~ 3.3V


  • Dual-core CPU with ARM v8-M architecture.
  • Performance core KM4:Cortex-M33 with main frequency up to 200MHz.
  • Energy Efficiency Core KM0:Cortex-M23 with main frequency up to 20MHz.
  • Deep Sleep、Deep Standby and Sleep mode.
  • SWD/JTAG simulation debugging interface.


  • 512K bytes SRAM for KM4 core
  • 64K bytes SRAM for KM0 core
  • 4M bytes PSRAM  
  • XIP flash memory from 2M to 16M bytes


  • 802.11 a/b/g/n 1T1R 2.4/5GHz dual frequency.
  • Processing Wi-Fi messages using independent Microcontrollers.
  • Support low power TX/RX mode in short distance applications.
  • Support narrow-band mode: 10MHz bandwidth.
  • Support Antenna diversity.
  • Support the IEEE Power Save Model

BT 5.0 Low Energy:

  • Comply with Low Power Bluetooth 5.0 Standard.
  • Support high power mode (10dbm).
  • Wi-Fi and BLE time division multiplexing and share the same PA and antenna.
  • Support Bluetooth Master-Slave Mode and BLE Mesh

Audio Codec:

  • Support 8, 16, 32, 44.1, 48 and 96 kHz sampling rates
  • 24-bit stereo DAC and DAC
  • Headphone speakers supporting 16ohm and 32ohm loads
  • Two Digital Microphone Interfaces
  • Bias Voltage of Built-in Microphone
  • Optional Voice Processor for Intelligent Noise Reduction


  • 34 x GPIO
  • 1 x USB
  • 3 x SPI
  • 1 x I2C
  • 1 x Infrared
  • 11 x PWM
  • 3 x UART:1 x Log UART、1 x LP UART、1 x HS UART
  • The baud rate is as high as 4M.
  • Up to 7 channels 12-bit ADC, 1M sampling rate, battery power detection
  • Low power RTC (32kHz)
  • Up to 5 x 5 matrix keyboard and 4 touch keys can be supported

Operating Temperature:-30℃ to +85℃

Antenna Type: On-Board PCB Antenna,or IPEX Connector

I2S Interface:

  • Output: 16/24 bit,24K-384K Sampling rate stereo.
  • Input: 16 bit,24K-96K Sampling rate dual microphone.
  • Full duplex input/output stereo audio
  • 5.1 Channel Output.


  • ARM Trust Zone-M Technology.
  • AES/SHA Hardware Accelerator, Random Number Generator
  • Security boot Safe Start
  • Anti-reading mechanism: JTAG interface protection, flash encryption technology.

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