Everything about IoT Testing, Types, Challenges, Best Practices

IoT Testing

IoT Testing. What is it? IoT, or the internet of things, is one revolutionary concept. It’s one of the biggest contributors to making human life more accessible and a great application of 21st-century advanced tech.

You are ordering some servant, and he is getting the work done in just a second. 

With your order, you can get anything done with your electronic appliances. 

But there is advanced and thousands and millions of lines of code written by the coder to make this IoT thing work properly, and if there is an issue with the code, things might not go well for that proper testing is a must.

So in this article, we have discussed IoT and IoT Testing in detail. 

What is the Internet Of Things (IoT)?

The Internet of Things is billions of objects communicating via the internet. Each of these devices collects and transmits each other. The Internet of Things arose due to the availability of large network bandwidths, pervasive wireless networks, and low-cost computer chips.

The Internet of Things incorporates cutting-edge sensors and enables real-time communication between multiple devices. It also allows individuals to add a new degree of digital intelligence to gadgets, allowing them to process information on-site without delay.

IoT Testing

In short, it enables talking between different gadgets in your home like mobile, washing machine, TV, refrigerator, bulb, fan, and list never ends. In almost all electronic devices using the internet sensors or chips are present inside these gadgets.

Components of an IoT System

W need to integrate many components (big and small) are to make an IoT system work. The very major we use in the industry are as follows.

#01 Sensors/Devices 

The device connectivity layer is made up of devices and sensors. These smart sensors continuously collect data from their surroundings and relay it to the next layer.

The most recent advances in semiconductor technology can develop miniature smart sensors for various applications.

Common sensors include:

  • Thermostats and temperature sensors
  • Sensors of pressure
  • Light intensity detectors Humidity / Moisture level
  • Sensors for moisture
  • Detecting proximity
  • RFID tags

#02 Connectivity

Now we need to transfer data to the cloud, but it needs some way to get there!

We can connect sensors/devices to the cloud via various methods like satellite, cellular, Bluetooth, WiFiWiFi, low-power wide-area networks (LPWAN), connecting via a gateway/router, or connecting directly to the internet via ethernet.

Each choice involves tradeoffs in power consumption, range, and bandwidth. The optimum connectivity choice depends on the IoT application, but they all accomplish the same thing: getting data to the cloud.

#03 Data Processing 

The data has been captured and transferred to the cloud, and the software processes it.

It ranges from something as simple as ensuring that the temperature reading on devices like air conditioners or heaters is within an acceptable range. It can also be highly complex, such as employing computer vision on the video to identify items (such as burglars in your home).

However, there may be times when user input is necessary, such as when the temperature is too high or an intruder in your home. This is where the user enters the photo.

#04 User Interface

User interfaces are the visible, tangible components of an IoT system that people can access. Designers will need to provide a well-designed user interface that requires the least amount of work from users and encourages more interactions.

Modern technology allows a more interactive design to simplify complex tasks into simple touch panel controls. In many houses, multicolor touch panels have taken place of complex switches in our domestic appliances, and we can expect to continue this trend for practically all smart home gadgets.

User interface design is more critical; it frequently determines whether users choose a specific product or appliance. For example, users will have the interest in purchasing smart devices or gadgets if they are easy to use and compatible with standard wireless protocols.

#05 Analytics

The process of transforming analog data from billions of smart devices and sensors into usable insights that can be analyzed and used for deep analysis is called analytics. Smart analytics solutions are unavoidable for IoT systems to manage and improve the overall system.

One of the fantastic benefits of a successful IoT system is real-time smart analytics, enabling engineers to detect inconsistencies in collected data and respond quickly to avoid an undesirable scenario. Service providers can plan for the following stages if they collect the information reliably and on time.

IoT Testing

Real-life examples of IoT

#01 Automate your home

One of the best instances of IoT is home automation. Smart houses and IoT-based home automation solutions are becoming increasingly popular. We and many consumers can connect electronic devices such as lights, fans, air conditioners to the internet in a smart home. This link allows the user to control these gadgets from afar. 

For example, a smart home may control lighting, manage energy, expand, and provide remote access. Currently, the mass use of this IoT application does not take place because the installation cost is prohibitively expensive for many individuals. Home automation, on the other hand, has a bright future.

#02 Disaster Management

The Internet of Things aids in the forecast and management of natural disasters. For example, consider the case of forest fires. We can set various sensors around the edges of forests to avoid the confusion and destruction caused by a forest fire. These sensors are constantly monitoring the temperature and carbon content of the area. 

They deliver complete reports to a central monitoring hub regularly. Then they issue an alert is to the control center, police station, and fire department in the event of a forest fire. As a result, IoT assists in remaining prepared and responding quickly in an emergency.

#03 Biometric Security Systems

Many security agencies utilize biometric systems to track daily attendance, restrict authorized individuals’ access, and provide other services. For example, IoT features in this area include better security, data transmission, and reduced human intervention. Fingerprint, voice, eye, and Face recognition are all biometric technology. 

The dependability of IoT-based security systems is higher than that of manual or automated security systems. The devices used in biometric security systems are linked to one another and dump data to the host computer after each use. This scanned data is saved for future use, and the relevant information is accessed as needed.

IoT Testing

#04 Smart Cars

IoT can be used to connect cars to transmit information such as location, speed, and dynamics. According to estimates, there will be 24 billion connected cars in the world by 2020. We utilize IoT daily without even understanding it. 

For example, while determining the shortest route, driving semi-automatic smart automobiles, and so forth, the Internet of Things is also employed in automobile repair and maintenance. Finally, it reminds the customer of the regular servicing date and supports the consumer in repair and maintenance by offering appropriate assistance.

Benefits of IoT

Following are the topmost benefits of using IoT:

#01 Cost Reduction 

When devices are connected and networked, cost savings are expected. This machine-to-machine data mesh gives real-time data and analysis options and permits considerable overall efficiency benefits.

This is not limited to smart inventory technology but also to developing cost savings and material cost reductions. 

As a result, businesses get smarter as sensors and internet connectivity are deployed.

Information about worker movement and motion, pollution levels, and temperature, for example, can help save costs. Sensors in lights switch on only when people move through an area, saving money on power bills.

#02 Connected Ecosystem

The modest light bulb is maybe one of the most basic instances of automation and control via an IoT smart device. The popularity of so-called smart bulbs that can link to a home network has skyrocketed. They let consumers regulate when lights are switched on and off and other functions.

But it’s not just smart lights. Internet-connected devices can be found in any room of the house. Voice control via Google or Amazon devices is readily integrated with TVs and other network devices, allowing you to automate their schedules or turn them on and off with a single command.

#03 Human-Machine Collaboration

There are numerous situations when big data and IoT convergence can improve people’s lives. For example, those that focus simply on business miss the big picture and what IoT may genuinely provide. Smart technologies in medicine, for example, can truly save lives. 

For instance, smart blood pressure monitors that send back data in a real-time or smart tablet that can be taken and we can transmit back as they pass through the gastrointestinal tract are excellent examples of how network gadgets genuinely assist people.

Smart gadgets can also be used on a city-wide basis. For example, data from Internet-connected traffic lights and traffic sensors can be fed back. This results in predictive outcomes that can adjust to changing traffic flow at any time.

Smart gadgets in cars and other vehicles can wirelessly connect to toll gates, traffic signals ahead, and road safety monitors to provide real-time feedback to drivers and authorities on traffic conditions and the danger of accidents.

#04 Machine-to-Machine Communication

The Internet of Things, by definition, runs without human involvement. Regardless of whether we gather it, data is collected and logged in real-time. The actual impact is that services may be made considerably more efficient.

This machine-to-machine connection effectively increases data collecting efficiency, eliminating the need for staff workers to perform the same task. Instead, it simplifies the task of operational staff by allowing them to focus on data rather than data collecting.

The tracking of miles and routes in autos is a classic machine-to-machine scenario. For example, a corporation that owns a fleet of cars that employees use for business purposes can track the usage and miles of each vehicle using IoT sensors installed in each car.

These gadgets provide real-time data to a server for monitoring and tracking.

#05 Access Information in Real-Time

Perhaps the most significant advantage of internet-connected devices is that they deliver up-to-the-minute information.

Consider a scenario in which all of the merchandise in a huge warehouse is linked to the local network. These persistent connections give information such as tracking product movement with time and date and seeing how much and when we require a new order.

Consider the possibilities for internet-connected gadgets in a situation where real-time monitoring is essential. Temperature sensors, for example, can provide feedback to a system that controls and automates commercial and industrial refrigeration.

The Technology Used In IoT

Below are the modern technologies that are used in the Internet of Things (IoT).

#01 LPWANs

Low Power Wide Area Networks are a relatively new phenomenon in the Internet of Things (IoT). The design of this technology family helps to serve large-scale IoT networks that span vast industrial and commercial campuses by providing long-range communication on small, inexpensive batteries that last for years.

LPWANs may connect any IoT sensor, enabling a wide range of applications such as asset tracking, environmental monitoring, building management, occupancy detection, and consumables monitoring. LPWANs, on the other hand, deliver brief blocks of data at a low rate, making them better suited to use cases that do not demand vast amounts of bandwidth and are not time-critical.

Furthermore, not all LPWANs are created equal. Today, some technologies operate in both the licensed (NB-IoT, LTE-M) and unlicensed (e.g. MY THINGS, LoRa, Sigfox, etc.) spectrums, each with varying degrees of performance in essential network parameters. 

For example, although power consumption is a significant concern for cellular-based, licenced LPWANs, Quality-of-Service and scalability are important considerations when implementing unlicensed technology. Standardisation is another crucial consideration to assure long-term stability, security, and interoperability.

#02 Zigbee and Other Mesh Protocols

Zigbee is a wireless short-range, low-power protocol (IEEE 802.15.4) we often use in mesh architecture to improve coverage by transferring sensor data across several sensor nodes. Compared to LPWAN, Zigbee offers better data throughput but substantially lower power efficiency due to mesh architecture.

Zigbee and mesh protocols (e.g. Z-Wave, Thread, etc.) are best suited for medium-range IoT applications with a distribution of nodes in close vicinity due to their physical short-range (100m). Typically, Zigbee is an excellent complement to WiFi WiFi for various home automation use cases such as smart lighting, HVAC controls, security and energy management, and so on – all of which rely on home sensor networks.

Mesh networks were also used in industrial settings before the advent of LPWAN, offering various remote monitoring options. Nonetheless, they are far from optimal for many geographically distant industrial locations, and their potential scalability is frequently hampered by increasingly sophisticated network setup and maintenance.

#03 RFID

Radio Frequency Identification is a technique that sends small amounts of data from an RFID to a reader over a short distance. Until now, technological advancements have enabled considerable transformations in retail and logistics.

By attaching an RFID tag to a range of objects and equipment, businesses can track their inventory and assets in real-time, allowing for better stock and production planning as well as optimised supply chain management. In addition, use of RFID still takes in retail, it enables new IoT applications such as smart shelves, self-checkout, and smart mirrors.

Briefly, each IoT vertical and application has its own set of network needs. Therefore, choosing the optimal wireless technology for your IoT use case necessitates carefully assessing factors such as range, bandwidth, QoS, security, battery consumption, and network administration.

#04 WiFi

Given its vital function in delivering high-throughput data transfer for the workplace and household environments, there is almost no need to describe WiFiWiFi. However, the technology’s fundamental limitations in coverage, scalability, and power consumption in the IoT arena make it far less widespread.

Because of its high energy consumption, WiFiWiFi is frequently not viable for large networks of battery-powered IoT sensors, particularly in industrial IoT and innovative building applications. Instead, it is mainly concerned with connecting items easily linked to a power outlet, such as smart home gadgets and appliances, digital signage, security cameras.

Wifi 6, the most recent WiFi generation, significantly increases network bandwidth (i.e. 9.6 Gbps) to improve data throughput per user in congested circumstances. With optimised standards is positioned to improve public WiFi WiFi infrastructure and revolutionise customer experiences in the retail and mass entertainment industries through new digital mobile services. In-car networks for infotainment and onboard diagnostics are also likely to be the most game-changing WiFi 6 use.

#05 Bluetooth and BLE

Bluetooth, often known as a Wireless Personal Area Network, is a popular short-range communication technology in the consumer market. The Bluetooth Classic was created to transfer data between consumer products on a point-to-point or point-to-multipoint (up to seven slave nodes). The Bluetooth Low-Energy was then designed to address small-scale Consumer IoT applications optimised for power consumption.

Bluetooth Low Energy devices are widely used in conjunction with electronic devices, most notably smartphones, which serve as a hub for data transfer to the cloud. The Bluetooth Low Energy (BLE) is now commonly integrated into fitness and medical wearables (for example, smartwatches, glucose metres, pulse oximeters, and so on), as well as Smart Home devices (for example, door locks), allowing data to be easily downloaded to and seen on smartphones.

What is IoT Testing?

IoT testing is a sort of testing used to evaluate IoT devices. Today, a more important requirement is to provide better and faster services. There is a high need for data access, creation, use, and sharing from any device. The goal is to provide greater visibility and control over a network of networked IoT devices. As a result, an IoT testing framework is essential.

Benefits of IoT Testing

Here are the major benefit of doing IoT testing before releasing software in the market.

#01 Test Cases Can Be Scaled Easily

Because automation testing in IoT accelerates the test generation process, QA teams may grow test cases from one development cycle to the next based on product demand. In addition, QA engineers can also schedule IoT automation testing tools to test cases overnight, giving them extra time during the day to review and report on test results.

#02 Test with Different Connectivity Scenarios

IoT testing entails a thorough examination of how an IoT device handles various connectivity scenarios, many of which are time-consuming or impractical to execute manually. 

For example, an IoT test automation framework can handle all scenarios by implementing automated test cases using your IoT Testing tools, delivering reliable results before market launch.

#03 Increase test coverage

More test processes and a wide range of app versions, mobile devices, and operating systems can be supported by IoT automation testing solutions. However, defects can be found sooner in the project life cycle since automation testing in IoT can complete test cases faster. 

Furthermore, with fewer faults pushed into production, consumers can have a more seamless experience while businesses enjoy a higher ROI.

#04 Reduce Hardware Resources

IoT Testing enables testers to correctly imitate the behaviour of the actual component, removing time and access limits for dependent services and features. Furthermore, functional and performance testing simultaneously eliminates hardware requirements, a problem for resource-constrained businesses, business-critical infrastructure, and third-party systems.

Types Of IoT Testing 

#01 IoT Performance Testing

Customers are susceptible to slight faults these days, and they may discontinue the use of the IoT device app if there are any delays. This is why it is critical to assess the performance of the IoT device app using various performance metrics.

Performance measures are database performance, load tolerance, IoT device app loading speed, throughput, efficiency, uptime, and data transfer rate. This is considerably more crucial in a networked app system.

We can use performance testing to see how well an IoT device app operates regularly over a more extended period and how it handles additional load from users during peak times.

#02 IoT Security Testing

Mainly people are most concerned about the security of IoT device apps. For example, people may use IoT device apps for various purposes, including monitoring transactions, exchanging personal information, buying and selling, and much more.

This is why an IoT device app should have specialised access restrictions for users that limit access for others. For example, it is impossible to uncover underlying flaws in an IoT device app and ensure that it does not leak sensitive information to attackers without security testing.

#03 IoT Usability Testing

Usability testing determines whether an IoT device app provides an optimal user experience to the average user. As a result, usability testing examines various aspects of a user’s experience, such as the design of an IoT device app, how easy its features are to use, and whether or not the material on the IoT device app is clear.

#04 IoT Regulatory Testing

The most important use of IoT devices is in healthcare. However, this industry is subject to several regulatory restraints. For example, testing healthcare IoT apps necessitates teams passing through various regulatory/compliance criteria.

Even if an IoT app meets all functional, performance, security, compatibility, and usability criteria, it can fail if it does not meet compliance requirements. As a result, educating developers with regulatory requirements early in the development cycle is preferable.

#05 IoT Pilot Testing

Testing in a lab environment is insufficient for IoT devices since applications might fail catastrophically when exposed to real-time conditions and data. Pilot testing involves exposing the programme to a live setting with fewer users. These participants utilise the programme and provide feedback on improving it. This input type is critical for making the app solid and ready for production deployment.

#06 IoT Compatibility Testing

Compatibility testing is used to ensure that an IoT device app is compatible with various devices, apps, and operating systems. Compatibility testing is in charge of determining whether the IoT device app is responsive and runs appropriately across all platforms and browsers.

Furthermore, if your IoT device app enables printing pages, compatibility testing can assist you in determining whether the IoT device app supports font, alignment, and page graphics for printing devices.

Challenges of IoT testing

#01 Hardware-Software Mesh

IoT is an architecture in which multiple hardware and software components are inextricably linked. The system comprises software programmes and hardware components such as sensors, communication gateways, and so on.

Only functionality testing is insufficient for fully validating the system. However, there is always a reliance on one another in terms of the environment, data transport, etc. As a result, it becomes a time-consuming task compared to evaluating a generic system [single software/hardware component].

#02 Device Interaction Module

Because this is an architecture involving multiple sets of hardware and software, they must communicate in real-time/near real-time. When they both integrate, factors like security, backward compatibility, and upgrade difficulties pose a difficulty for the testing team.

#03 Real-Time Data Testing

As we previously explained, pilot testing/regulatory testing is required for a system like this, but obtaining such data becomes extremely difficult.

It is pretty challenging to be a part of a testing team, obtain regulatory checkpoints, or have the system deployed in a pilot. For example, if the system is for healthcare, the step becomes significantly more difficult. As a result, it remains a significant difficulty for the testing crew.

#04 UI

The Internet of Things is present in devices from every platform [iOS, Android, Windows, and Linux]. Now, while testing on devices is doable, testing on all potential devices is nearly impossible.

We cannot rule out the prospect of UI being accessed from a device we don’t own or can’t emulate. That is a difficult hurdle to conquer.

#05. Network availability

Because IoT is all about exchanging data at ever-increasing speeds, network connectivity is critical. As a result, we must test IoT architecture in various network connectivity/speeds.

We commonly use virtual network simulators to test this by varying network load, connection, and stability, among other things. However, real-time data/network is always a new circumstance, and the testing team has no idea where the bottleneck would arise in the long run.

Best Practises For Effective IoT Software Testing

  • We must use Grey Box testing in conjunction with IoT testing since it enables the creation of practical test cases. This allows you to learn about the operating system, architecture, third-party hardware, new connectivity, and hardware device limitations.
  • Real-time operating systems are critical for delivering the scalability, adaptability, connectivity, and security required for IoT.
  • We should automate our IoT testing efforts.

IoT Testing with Testgrid.io


  • Wearable/Fitness tracker Automation
  • Smart Home Sensor Kit Automation
  • Payment device Automation
  • Touch Screen Automation
  • Smart Meter Automation

Benefits of IoT Testing

  • 90 – 100% elimination of manual effort/dependencies in hardware testing
  • Up to 60 % reduction in regression test efforts
  • Enables End to End automation
  • Eliminates the necessity of shipping devices offshore and customs hassles.
  • Remote execution of device testing across the globe.
  • Cost savings through more offshore enablement, zero shipments, better utilisation of resources.


IoT is one of the best technology and provides an excellent and magical experience and convenience to the user. 

So proper IoT testing is vital to ensure that the end product works well for the user.

We need to do proper hardware and software testing; also, adequate testing of the model to ensure that we leave no flaws.

Testing to ensure that all sensors are working correctly and responding accordingly is essential to provide best in class products to your user.

IoT testing is not an easy process; doing it manually takes 90% more time as compared to IoT automation testing offered by testgrid.io

IoT automation testing with testgrid.io saves your time, money, resources and; provides better ROI and provides the best in the industry IoT automation testing.

To check out our IoT automation services, click here.