Where are the good wireless transceiver module manufacturers?

The wireless transceiver module is mainly a combination of wireless transmitter module and wireless receiving module, the common wireless transceiver module has 315m wireless transceiver module and 433m wireless transceiver module, there are many manufacturers who cannot transceiver module, but it is not easy to find a suitable one, Ling Chengxin's wireless transceiver module is very good, and it can be considered according to the following three aspects.

1. It should be analyzed from the functional requirements: what kind of performance should the product achieve? What are the feature requirements? Are the electrical parameters matched? Whether the distance of the wireless transceiver module is suitable, etc.

2. It is also necessary to consider whether the appearance, size and IO input and output control functions of the product are suitable.

3. It is necessary to consider whether the product is cost-effective with the current supporting products, so as to be able to purchase in bulk.

When choosing a LoRa module, many people will be confused, which LoRa module is better? Let's take a look at the selection of LoRa modules with you.

When it comes to LoRa modules, in fact, many people don't know about it, what is LoRa modules? It is a kind of LPWAN communication technology, with the characteristics of long distance and low power consumption, which realizes longer communication distance and low power consumption to the greatest extent, and saves costs, and becomes an option in wireless data transmission.

The advantages of LoRa module are also obvious, such as super anti-interference performance, low power consumption, long distance, low cost and other advantages, which play an important role in smart meter reading, smart industry, environmental monitoring, smart community and other fields. So which is the best LoRa module?

At present, foreign countries have been using LoRa modules on a large scale, which is still relatively unpopular compared to China, but there are still manufacturers who have put it into practical application and achieved good results. The LoRa module IoT-L2S-B is a general communication and interactive device designed and manufactured based on LoRa RF chips, which integrates two industrial standard RS485 channels and supports a variety of protocols to realize data transmission between wired devices and wireless devices, which can be widely used in the Internet of Things, centralized meter reading, industrial control and other directions.

It is not the key to choose a reliable manufacturer to have a good pre-sales and after-sales guarantee, and choose the application of LoRa module according to the needs of the project to achieve the best use effect.

The tongue has no bones, but it can break bones.

It depends on whether the wireless transceiver module itself is sensitive.

Durable, stable, waterproof, drop-resistant, abrasion-resistant, etc.

It can be close to the high-power transceiver module, and the cost performance is quite high.

It can transmit information if it is used to transmit or receive electromagnetic waves.

Function.

2. It is used for wireless multi-channel (parallel) control. For example, complex remote-controlled robots, etc., some places require multi-channel (parallel) control. One method is to use the receiving module to directly connect with the decoder, and then connect with the relay and other electronic components to drive the subsequent controlled object; Another method is to connect the receiving module with the single-chip microcomputer, and after the data is processed, the single-chip microcomputer is used to connect the relay and other electronic components to drive the subsequent controlled object.

Usually a pair of transmitting and receiving modules can achieve up to six parallel wireless control, if the number of channels required is greater than six, multiple pairs of transmitting and receiving modules can be used, and work at the same time to meet the actual needs.

Function. 3. Used for universal serial port (RS232 wireless data transmission. Usually many control instruments and devices use serial ports, and communication with these devices must meet serial port requirements. Certain extraordinary places, industrial control sites.

When wireless transmission is necessary, the transmit and receive modules mentioned in this article are a natural choice. But it must be explained here that to adopt this communication mode, it is necessary to compile the corresponding software at the transmitting end and the receiving end respectively to realize the conversion of file format, in order to achieve the purpose of wireless communication, if the communication system is full-duplex, two pairs of radiation and receiving modules can be adopted, and work simultaneously to realize.

There are a lot of wifi module manufacturers, our company's products use skylab's wifi module, performance stability, cost performance and delivery time are not bad, and they have fae engineers to assist in the selection and program rectification.

There are many wifi manufacturers, and our company has **Taiwan AMPAK Zhengji's wifi module, **affordable, free samples are available, and technical support can be provided.

Operating frequency band: 850 930 MHz

The transmit power is 22 dBm, the high power (about 160mW), and the receiver sensitivity is -147 dBm

Air velocity -

The measured distance is 7000 meters.

Size size 20 * 14 mm

Antenna form IPEX stamp hole.

Communication interface SPI

Encapsulation Patch.

Supply voltage v

Communication level V transmit current 114 119 124 mA 22dBm (160mW).

Receive current mA

Sleep current 150 185 200 naOperating temperature -40 20 +85 Operating humidity 10 60 90 % Storage temperature -40 20 +125

Industrial remote control, telemetry.

Wireless monitoring of oil drilling tension.

Short-range wireless data transmission.

Wireless monitoring of security equipment.

Wireless RS485, wireless PLC

Pressure and temperature monitoring of urban pipe network.

Power line wireless alarm.

Application example: The first concern of users is the transmission distance, and the distance is not a problem. In the near future, the 433MHz band wireless data terminal DTD433 is used, and the GPRS transparent transmission data terminal DTP S09F is used in the distance.

The so-called "near" means that most factories and mines can be covered within 3 kilometers; The so-called "far" refers to the communication distance of more than 3 kilometers, and even across different regions and different countries, but fortunately, China's mobile network has covered the whole world, so distance is not a problem. The combination of DTP S09F and DTD433 can meet most of the requirements of wireless measurement and control.

Wireless Zheng Zhekai communication solution between multiple PLCs.

Design instructions for wireless MODBUS communication between multiple Siemens S7 200s, with design instructions and programs for PLC master and slave.

The wireless N:N communication design between multiple Mitsubishi PLCs is the same as that of Inovance PLC and Mitsubishi PLC.

Modbus wireless communication routines, program sources** and design instructions between two Delta PLCs. The connection application of wireless PLC data terminal and wireless MODBUS measurement and control terminal.

The PLC communicates wirelessly with the 4DI 4DO wireless switching terminal DTD433H and the 4AI 4AO wireless analog terminal DTD433F within 3 kilometers to realize wireless MODBUS transmission. Touch screen and PLC wireless communication solution.

Siemens 200PLC and wireless PLC data terminal wireless communication with Shenzhen Buke touch screen;

Wireless PPI communication between Weilun touch screen and S7-200;

Wireless communication between MCGS and PLC of Kunlun Tongtai touch screen;

Wireless MODBUS communication between Autoface touch screen and Siemens PLC;

Display and control touch screen wireless communication example;

Run the touch screen configuration calling program, which can use Modbus protocol, Siemens PPI protocol, Mitsubishi N:N protocol, Yonghong PLC protocol, Delta PLC protocol, etc. Wireless communication solution between configuration software and PLC.

Wireless PPI and Modbus communication between Configurator software and Siemens PLC;

Wireless communication between the force control configuration software and Siemens PLC.

Wireless data transmission is widely used in vehicle monitoring, remote control, telemetry, small wireless networks, wireless meter reading, access control systems, cell paging, industrial data acquisition systems, wireless tags, identity recognition, non-contact RF smart cards, small wireless data terminals, security and fire protection systems, wireless remote control systems, biological signal acquisition, hydrometeorological monitoring, robot control, wireless 232 data communication, wireless 485 422 data communication, digital audio, digital image transmission and other fields.

Data cable. Data cable is a necessary accessory for mobile phones and computers to exchange data, through the data cable, use mobile phones as wireless modem to log in to the Internet anytime and anywhere, and use computers to manage your mobile phone information.

Earphone. The mobile phone headset mentioned here mainly refers to the Bluetooth headset, which is light and compact, and there is no need to connect the phone to the phone. Beautiful and elegant, the size of the dress is moderate, comfortable to wear, excellent sound quality, flexible and convenient, and has better compatibility, with all the Bluetooth mobile phones on the market.

External camera.

With the development of mobile phones, mobile phones with cameras to shoot are also the objects of competition among manufacturers. The camera is divided into built-in and external cameras, and the external camera is mainly connected to the camera through the camera interface on the mobile phone to realize the function of taking pictures. Generally speaking, a model of camera may correspond to several cameras of the same brand and series, but it is impossible to be compatible with products of different brands.