More details about RTL8720DN WiSoC Block Diagram – Click to Enlarge It exposes more I/Os than the B&T module so unsurprisingly it’s a bit more expensive at 40 RMB ($5.8) for a single unit, but the price drops to 30 RMB per piece for orders over 10k. You’ll find more details about the module including a datasheet on the product page.
I/O – 36x castellated holes with GPIO, UART, SPI, I2C, USB.TCP, UDP, HTTP, HTTPS, and MQTT protocol.Wireless SoC – Realtek RTK8720DN MCU with KM4 Arm Cortex-M4 core 200 MHz and KM0 Arm Cortex-M0 core 20 MHz.The module is sold on Seeed Studio for $3.90, but you’ll also find it for 24 RMB on Taobao ($3.50) Feasycom FSC-BW236 ModuleĪnother option comes for Feasycom with its FSC-BW236 IoT WiFi module. Relative Humidity – 10%~90% (non-condensing).Temperature Range – Operating: -20☌ to 85☌ storage: -40☌ to 125☌.I/O – 16x castellated holes with GPIO, 2x UART (AT commands + serial), ADC, I2C, SPI, 4x PWM, 3.3V, GND.Antenna – IPEX connector or PCB Antenna.
Wireless SoC – Realtek RTL8720DN MCU with KM4 Arm Cortex-M4 core 200 MHz and KM0 Arm Cortex-M0 core 20 MHz.Some others add Bluetooth 4.2/5.0 such as Espressif Systems ESP32, but it’s much harder to find solutions with dual-band WiFi especially if you have a tight budget for your project or product.īut Realtek RTL8720DN – part of AmebaD family – offers just that with the Arm Cortex-M4/M0 wireless MCU supporting dual-band (2.4/5.0GHz) 802.11 b/g/n WiFi and Bluetooth 5.0 connectivity, and found in modules currently selling for as low as $3.90 or 24 RMB in single units. There are plenty of 2.4 GHz WiFi modules for IoT project based on processors ranging from Espressif Systems ESP8266 to TI CC3200, or Realtek RTL8710.