Realtek RTL8720DN is a WiFi and Bluetooth module that has dual bands for WiFi communication. It is worth saying that this little module can support WiFi 5G and Bluetooth Low Energy 5.0 as well. This WiFi and Bluetooth module is a highly integrated WiFi and Bluetooth module with the main chip RTL8720DN, it can be regarded as an SoC for the WiFi and Bluetooth application with typical SBCs. 

• 1 common ADC interface
• 2 log UART with standard baud rate support
• 1 I2C interfaces are shared with the PWM interfaces
• 1 SPI interfaces are shared with the PWM interfaces
• 4 PWM interfaces
• All of the above interfaces can be used as GPIO

• BLE beacon
• Industrial wireless control
• Bluetooth gateway
• Wearable electronic devices
• Security ID tags
• Smart home

Pinout:

Specifications:

• Model: BW16
• Antenna Type: IPEX connect or PCB Antenna
• Major Chipset: RTL8720DN
• Power Supply: 3.3±5% V
• Dimension: 24 .0 x 16.0 x 3.0mm (LxWxH) ±0.2mm

• Wireless Standards: IEEE 802.11 a/b/g/n
• Frequency Range: 2.412-2.484GHz & 5.180-5.825GHz
• 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 
• Data Rates: 802.11n : MCS0--MCS7 @ HT20 /2.4GHz and 5GHz band
• Data Rates: 802.11n:  MCS0--MCS7 @ HT40 /2.4GHz and 5GHz band  
• Modulation Technique: DSSS (DBPSK, DQPSK, CCK) / OFDM (BPSK, QPSK, 16-QAM, 64-QAM)
• Work Mode: AP, Station, AP/Client

Others:

• Operating Temperature: -20℃~85℃
• Storage Temperature: -40℃~125℃
• Operating Humidity: 10%~90% (non-condensing)
• Storage Humidity: 5%~90% (non-condensing )
• Certification: RoHS compliance, FCC, CE, SRRC

• Wireless Standards: Bluetooth5.0 BLE
• Frequency Range: 2.402GHz -2.480GHz
• Receiver Sensitivity: -92dBm
• Transmit Power: 7±2dBm

• 1 x Realtek RTL8720DN 2.4G/5G Dual Bands Wireless and BLE5.0 Combo Module