Key Features

Specifications

• AI7688 Wi-Fi Module
  • Operation system: GNU/Linux based OpenWrt
  • Wi-Fi Network: Support Legacy 802.11b/g and HT 802.11n modes
  • Expansion: Two expansion headers for I2C, GPIO and USB 2.0 host
  • Interfaces: Built-in 3.5mm AUX port, Micro USB and SD card slot
• ATMega32U4 Coprocessor
  • USB CDC virtual serial port for linux console
  • 12 programmable RGB LED indicators
  • 8 on board touch sensors
• Codec WM8960
  • DAC SNR 98dB (‘A’ weighted), THD -84dB at 48kHz, 3.3V
  • ADC SNR 94dB (‘A’ weighted), THD -82dB at 48kHz, 3.3V
  • Stereo Class D Speaker Driver with 87% efficiency (1W output)
  • On-chip Headphone Driver
  • 40mW output power into 16Ω at 3.3V
  • THD -75dB at 20mW, SNR 90dB with 16Ω load
  • On-chip PLL provides flexible clocking scheme
  • Sample rates: 8, 11.025, 12, 16, 22.05, 24, 32, 44.1, 48 kHz
• Power Supply: 5V DC
• Dimensions: 70mm diameter
• Weight: 17g