Dual Band Wi-Fi Board 2.4/5.8 GHz – RTL8720DN

RTLDUINO is a board built around the RTL8720DN (BW16) module. It provides 13 GPIOs, an RGB LED for general use, two buttons for programming and reset (Burn and RST), and a micro USB connector for programming and power. The RTL8720DN module has dual band Wi-Fi (2.4 GHz and 5.8 GHz) and Bluetooth Low Energy 5.0. It is built around a high-performance MCU called KM4 running at 200 MHz and a low-power MCU called KM0 running at 20 MHz. It offers UART, GPIO, ADC, PWM, I²C, SPI and SWD. It can be used in a wide range of applications such as wearable devices, low-power sensor networks, audio headsets, smart sockets, home automation, mesh networks, industrial wireless control, wearable electronics and so on.

• CPU and memory
  – Wireless SoC – Realtek RTK8720DN MCU with Arm Cortex-M4 KM4 core at 200 MHz and Arm Cortex-M0 KM0 core at 20 MHz
• Wi-Fi
  – 802.11 a/b/g/n WiFi 4
  – Data Rates:
  802.11a: 6,9,12,18,24,36,48,54Mbps
  802.11b: 1,2,5.5,11Mbps
  802.11g: 6,9,12,18,24,36,48,54Mbps
  802.11n: MCS0–MCS7 @ HT20/HT40 2.4 GHz and 5.8 GHz bands

• Bluetooth
  – Standard 5.0 BLE
  – Antenna – IPEX connector or PCB Antenna
• 2×15 connectors with: 13 GPIOs (ADC, UART, I²C, SPI, PWM, SWD), VIN, 3V3, GND, EN

• Datasheet RTL8720DN
• GitHub