Nowadays, there’s a big number of choices when it comes to connectivity in the fields of IoT systems development and even day to day life.
The integration of IoT in daily life is spread throughout various industries where it has many purposes including manufacturing, automotive, transportation, security systems, communication and much more. While there are more than a few options and alternatives available, we’ll be talking about the top 5 standard IoT protocols that you must know about.
Bluetooth is without a doubt one of the most popular wireless data sharing technologies that have been around for quite a while now. It’s a short-range communication technology that’s widely found in almost every modern smartphone and mobile device which makes it a great choice for connecting to wireless devices especially wearable and portable ones.
The Bluetooth protocol among IoT protocols is BLE or Bluetooth Low-Energy protocol that offers the same range as conventional Bluetooth but consumes less power which makes it a popular choice for smart devices. The latest version of Bluetooth is 5.0 that compared to the version 4.2 offers 4 times the range, 2 times the speed, 8 times the broadcast message capacity and consumes even less power making it ideal for continuously transmitting small blocks of data while keeping power consumption low.
As far as IoT based solutions go, Wi-Fi is in the lead thanks to its ability to transfer large files quickly. Wi-Fi offers fast data transfer rates that can download gigabytes of data in a matter of seconds as well as being the primary way the majority access the internet.
Wi-Fi has a high level of familiarity with consumers and compared to many other IoT protocols. It can offer data transfer speeds up to 600 Mbps making it a logical choice for both residential and commercial use. Wifi signals operate at 2.4GHz and 5GHz bands.
ZigBee is a lot like Bluetooth but focused more towards industrial operations rather than the general public which is why you’ve never heard of it before today but you’ll certainly need to know more about as you progress up the industrial chain. ZigBee in most cases operates at a frequency 2.4GHz allowing you to share smaller files in a network with low power consumption.
It’s a scalable solution for most industries with high node counts to transfer data between applications that require data to be sent or received infrequently. It operates within a 100m range making it ideal for creating local networks that energy efficient and secure for low data transfers. The latest version of ZigBee is 3.0 which combines all ZigBee wireless standards into one easy to handle package.
NFC (Near Field Communication)
As far as safe and secure two way IoT Protocols are concerned, NFC has become rather popular both for industries and the general public especially in smartphones and smart devices. NFC IoT Communication Protocols allow users to access digital content on other devices, perform wireless payments and share more information with any NFC enabled device.
Due to its secure and low rate of data transfer, its become a popular choice for use in contactless payment systems, identifying documents and can even act as a keycard. It can operate within a 4m range between two devices.
Cellular technology is the basis for mobile phone networks but can also be used for a wide variety of IoT applications that need to function over long distances. Similarly to Wi-Fi, it provides wireless fast data transfer speeds allowing you send and receive large files through your mobile device by using cellular communication capabilities such as GSM, 3G, 4G, and 5G in the near future.
While cellular technology can transfer high quantities of data but it’s accompanied by a high price and power consumption. Thus, it’s widely used in mobile devices for on the go access to IoT applications. Depending on the cellular communication you’re using, cellular can offer data transfer speeds up to 12 Mbps.