Nowadays, with the rapid development of the Internet of Things, the mainstream intelligent control solutions in smart home and smart industrial scenarios mostly rely on wifi technology and Bluetooth technology to achieve. The Bluetooth-Wifi dual-mode SOC solution, with the characteristics of low power consumption, low cost and high distribution network success rate of integrated wifi and Bluetooth technology, also has broad application prospects in the field of IoT smart home/home appliances.
For example, the intelligent control solution of SKYLAB Tiangong Measurement and Control adopts the Bluetooth-Wifi dual-mode SOC solution, equipped with the low-power WiFi+Bluetooth two-in-one module WG237, which simplifies the hardware structure design, greatly reduces the product cost, and improves the success of equipment distribution network rate, enhance the stability of networking, and help traditional equipment manufacturers realize product intelligence at low cost and quickly.
How to realize intelligent control through WiFi and Bluetooth two-in-one module-Industrial Control
WG237 is an industrial-grade embedded wireless control module developed by Shenzhen Tiangong Measurement and Control Technology Co., Ltd. (WG237), with built-in ESP32-C3 chip, RISC-V 32-bit single-core microprocessor, main frequency up to 120MHz, integrated WiFi And Bluetooth function, wifi supports IEEE 802. 11 b/g/n/ax protocol, Bluetooth supports Bluetooth 5.0, Bluetooth mesh, and the module supports remote OTA upgrade. The onboard high-performance WG237 supports 1T1R mode, the wifi data rate is up to 72Mbps, and the Bluetooth data rate supports 125 Kbps, 500 Kbps, 1Mbps, 2Mbps, providing excellent hardware support for high-end applications.
| Hardware Features/Hardware Features |
|
| Module |
WG237 |
| Antenna type/Antenna type |
PCB onboard antenna |
| Voltage/Voltage |
3.3V+/-10% |
| Dimensions/Dimensions(L×W×H) |
24.0mm*16.0mm*3.1mm |
| Others |
|
| environment |
Operating Temperature: -40℃~85℃/-40℃~105℃ (customizable) |
| Storage Temperature: -40℃~105℃ |
|
| Operating Humidity: 10%~90% non-condensing |
|
| Storage Humidity: 5%~90% non-condensing |
|
| 2.4GHz WIFI Features |
|
| Wireless standards/Wireless standards |
IEEE 802.11 b/g/n |
| Frequency range/Frequency range |
2.412-2.484GHz |
| Transmission rate/Data rates |
IEEE 802.11 b Standard Mode: 1,2,5.5,11Mbps |
| IEEE 802.11 g Standard Mode: 6,9,12,18,24,36,48,54Mbps |
|
| IEEE 802.11 n Standard Mode: 150Mbps @ HT40(MCS7) |
|
| 2.4G Receive sensitivity / 2.4G Receive sensitivity |
HT20 MCS7 : -85dBm@10% PER(MCS7) |
| OFDM 54M: -76dBm@10% PER |
|
| CCK, 11M: -73dBm@ 8% PER |
|
| Wireless security/Wireless security |
Support of WEP, WPA, WPA2, WPA3 (Personal and Enterprise modes) |
| Transmit power ±2dBm/ Wireless transmit power with ±2dBm tolerance |
IEEE 802.11b: 17dBm |
| IEEE 802.11g: 14dBm |
|
| IEEE 802.11n: 12-14dBm@HT20 MCS7 |
|
| Work mode/ Work mode |
Soft AP/ Station |
bluetooth parameters
| Parameter/Parameter |
Condition |
Min/Minimum |
Typical |
Maximum |
Unit/Unit |
| Working frequency/Working frequency |
2402 |
2480 |
MHz |
||
| Air rate/Data Rate |
2 |
Mbps |
|||
| Transmit power/Wireless transmit power |
-24 |
9 |
-21 |
dBm |
|
| Sensitivity / Sensitivity |
-97 |
-100 |
-97 |
dBm |
The smart terminal device with built-in wifi and bluetooth two-in-one module WG237 can collect sensor data through bluetooth and transmit the data to the WiFi part through the UART interface, and then upload the data to the server through the WiFi. Users view data information through mobile phones, and according to actual needs, realize intelligent control through WiFi network with the help of home or remote control mode.
Advantages of intelligent control scheme based on WiFi+Bluetooth two-in-one module
1. Simplify user-side operations
End users do not need to manually set the product distribution network mode, the device can be found when it is powered on, and devices can be added quickly, greatly improving user satisfaction.
2. Strong network adaptability
The smart device equipped with WiFi+Bluetooth two-in-one module WG237 can greatly solve the network distribution problem in the 2.4G&5G dual-band/mixed-frequency routing environment, with higher compatibility and faster speed, and the success rate of network distribution is as high as 95%.
3. The device is directly connected without fear of disconnection
When the WiFi network environment of the device fails, such as disconnection, the APP will automatically remind the user to turn on the Bluetooth of the mobile phone, use Bluetooth for local control, and directly connect the control device at a short distance without being affected by the disconnection.
4. Empower rich scenes
In the application scenario, based on the communication characteristics of the WiFi+Bluetooth two-in-one module WG237, it is especially suitable for smart home, smart home appliances, photovoltaic new energy, etc.
In terms of software, common AT commands can realize data transparent transmission, which can be applied to most IoT data interaction scenarios, and can quickly realize device network access; through MQTT commands, it can connect to major cloud platforms that support standard MQTT communication, including Amazon, Tencent Cloud, and Ali cloud, private cloud, etc. It also supports secondary development of modules in Ubuntu, Linux, and Windows environments.
Smart home, large and small home appliances, industrial automation, monitoring equipment, wireless remote control, smart wearable... all kinds of terminals can be interconnected through SKYLAB Tiangong measurement and control WiFi+Bluetooth two-in-one module series.