From the budding to the rapid development of the Internet of Things, wireless communication technology has played a linking role, bringing hope to equipment manufacturers. Among them, the WiFi module has also attracted extensive attention from engineers due to its advantages such as fast transmission speed and long transmission distance. With the performance optimization of various applications of the Internet of Things, engineers have to face again, how to solve the problem of power consumption. In this article, SKYLAB will introduce a WiFi module WG219 with small size and low power consumption that supports serial port transparent transmission.
WG219
In the advanced process of the Internet of Things, the significance of WiFi connection is not only a change in the connection method, but also a change in the thinking mode. The connection becomes a physical communication method, and the Internet becomes a spiritual support. The serial port transparent transmission of the WiFi module is specifically "input is output (for example, the characters input from the serial port of the WiFi module will be transparently transmitted to the server)", the data does not change, and the conversion between different protocols (such as serial port to WiFi, Bluetooth, etc. ) is done by the module.
About WG219
WG219 is a low-power and small-size WiFi module based on ESP8266 chip integration. It conforms to the 802.11b/g/n wireless module standard and is often used in serial UART data transmission applications.
WG219 parameter characteristics
The WG219 is optimized for enterprise, smart grid, home automation and control client applications and in specific cases for low data send and receive control. The WiFi module WG219 also supports rapid programming applications for ultra-low power devices with SW on-chip complete applications. This makes the WG219 an excellent choice for highly integrated, low power automation and sensor solutions.
WG219 has a built-in PCB antenna, and an IPEX socket for external antenna, serial port and GPIO port.
Power consumption values of WG219 in different states:
condition |
describe |
Current (Typ) @ 3.3V |
Deep sleeping |
RTC power only |
10uA |
light sleep |
receive beacon packets |
0.9mA |
modem sleep |
CPU power |
15mA |
Active RX (RF working) |
RX and monitor |
50-60mA |
Active TX (RF operation) |
WiFi TX 13-18dBm |
120～180mA |
Product application of WG219:
It can be widely used in IoT, consumer devices, metering, smart home gateways, smart lighting, smart sockets and lights, baby monitors, mesh networks, sensor networks, industrial control and other fields that require serial port transparent transmission.
For more low-power, serial port transparent transmission WiFi module selection applications, you can directly visit the SKYLAB website or Alibaba store.