Machine Temperature Monitor

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For Basic CPU Temperature Monitoring: Core Temp The most important temperature to measure in your computer is the processor, or CPU. Core Temp is a simple, lightweight app that runs in your system tray and monitor’s the temperature of your CPU without cluttering it up with other stuff. A temperature monitoring solution is immensely beneficial to industries where temperature plays a crucial role in defining the quality of the products. Moreover, in a cold chain, a temperature monitoring solution allow a logistic manager to monitor the temperature of the item being transported in real-time.

  1. Slot Machine Monitors
  2. Machine Temperature Monitoring System
  3. Wireless Temperature Monitor

The Internet of Things technology has been growing rapidly and has already bypassed conventional systems in terms of features and functionalities. Its applications in the field of remote monitoring and advanced analytics are revolutionizing businesses and are offering exemplary benefits to them.

One such application of IoT is temperature monitoring. A temperature monitoring solution is immensely beneficial to industries where temperature plays a crucial role in defining the quality of the products. Moreover, in a cold chain, a temperature monitoring solution allow a logistic manager to monitor the temperature of the item being transported in real-time.

In this solution, thermostats and sensors continuously measure the temperature of a closed system and share it with a centralized platform over a network. By using this platform, an individual can remotely monitor the temperature of the system and make sure that the cargo is being shipped within a temp-controlled environment.

The implementation of this solution is really helpful for goods that are climate-sensitive. It is convenient to use and help in confirming the quality of the products during warehousing and shipping processes. Here is a list of top 5 use cases of this solution:

1) Digital temperature monitoring in laboratories:

Temperature plays a crucial role in defining the chemical composition or integrity of volatile compounds and biological samples respectively. They can render useless and affect experimental conclusions or even worse, the patient's health, if not kept under a strict temperature range. It is, therefore, vital for laboratories and test clinics to maintain a controlled environment for successful testing on these samples.

With IoT’s temperature monitoring solution, a laboratory can conduct tests and store samples in a controlled environment, to determine accurate results.

2) Food Safety Compliances:

Developing and maintaining a consistent batch of food items that stands true according to the standards set by food regulatory authorities is important for the food and beverage industry. However, for fast food firms with the franchise in different corners of the world, maintaining these quality and safety standards can be a major challenge.

The food industry hence uses heater/freezer fitted chambers to develop a controllable environment for their goods. IoT temperature monitoring solution allows the food industry to monitor the temperature of these chambers allowing them to ensure that the regulatory compliances are met. They can remotely monitor the temperature of the items and confirm the quality of their products.

3) Warehouse and Inventory Management:

Some products can be sensitive to humidity & temperature. Storing them in a normal warehouse can result in their corrosion and are thus required to be stored in a temperature-controlled environment. By using heaters/freezers, the temperature and humidity of the warehouses can be maintained to ensure the quality of a specific type of product. By using IoT based temperature monitoring solution, a warehousing and inventory manager can track and remotely change the temperature of the warehouse. This reduces inspection costs and helps companies to ensure the quality of their products.

4) Goods in Transit:

Connecting manufacturers, distributors, and consumers are one of the many crucial applications of a supply chain. During the distribution phase, the quality of the products being shipped is affected adversely due to changing environmental conditions.

Hence, companies develop special containers to maintain a suitable environment for their products while they are shipped from one location to another. Using temperature monitoring sensors allows companies to track environmental parameters of a trailer en-route even from a remote location. This IoT solution along with advanced telemetry establish transparency in a cold supply chain and allow companies to maintain the quality of their products.

5) Equipment Monitoring:

Manufacturing based companies depend a lot on the quality and efficiency of their machines. Sudden equipment breakdown can result in bottlenecks that further affects the performance of the whole plant.

Machine temperature monitoring system

As rise in temperature is one of the implications of the machines’ wear and tear, temperature monitoring sensors can be used to detect issues affecting the performance of the machines. This helps the companies to reduce equipment downtime and conduct effective condition-based maintenance (CBM) on them whenever they undergo an unexpected malfunction or breakdown.

Benefits of IoT temperature monitoring:

The applications of temperature monitoring systems are quite versatile. They offer exemplary benefits in terms of keeping the environmental conditions stable and controlled as per specific requirements. Below are the top 5 benefits that this solution offers:

A. Save time with instant notifications and alerts:

An IoT system offers instant notifications in real-time. Hence, a temperature monitoring system allows a company to track the environmental parameters on a secure web/mobile-based platform. This eliminates redundant tasks like taking manual readings, thus saving time and elevating quick decision making.

B. Productivity improvement with advanced analytics:

The data gathered from the temperature sensors can be used to create statistical insights. These insights will include the time duration during which products deteriorate and details associated with the temperature readings. This will help the companies to improve the reliability of their warehouse and cold storage.


C. Maintaining regulatory compliance:

Companies must maintain the quality of their products in the entire cycle of the supply chain. The products should meet the safety and quality standards set by the authoritative regulatory bodies. Temperature monitoring allows companies to protect their products from the adverse effects of changing weather and thus meet regulatory compliance.

D. Accessibility from remote locations:

As IoT encompasses advanced telemetry capabilities, remote temperature monitoring from distant locations is also. The data gathered through temperature monitoring sensors can be accessed from faraway places on a web application or a mobile app.

E. Creating transparency in the supply chain:

With advanced telematics capabilities, a temperature monitoring system can transfer the data to multiple profiles simultaneously in real-time. This increases the visibility between the supplier and carrier enabling them to monitor the parameters through remote locations.


Wireless temperature monitor

The use of temperature monitoring sensors has enabled the monitoring of change in temperature affecting the quality of the products. Their implementation in different sectors has empowered the logistics and warehousing operations of a company. The solution these sensors offers along with IoT allows companies to monitor the temperature of their products in a cold chain. This is enabling companies to ensure the quality of their products while they are in transit.

  1. Setup 1-wire Support by adding dtoverlay=w1-gpio to /boot/config.txt. You can skip this step if it’s already present.

    Reboot to take effect.

  2. Setup apt-get to recognise the temperature-machine repository. To ensure the releases come from official, trusted sources, also add the repository key using apt-key.

  3. If your /etc/apt/sources.list file contains the following line, remove it. It was used by a previous version.

  4. If you’ve previously built from source, stop any running versions (not required for a fresh install).

    You might also want to disable any previous automatic startup (if you built from source). Check the contents of /etc/rc.local and remove the following line if it exists (you might see instead of

  5. Install.

  6. Decide if you will be running the temperature-machine as a server or client.

    If you have a single machine, you want a server. If you already have a server running and want to monitor more rooms with more machines, add each of these as clients.

    Run the following before you startup the temperature-machine for the first time.

    It will ask you to choose and create the configuration file as ~/.temperature/temperature-machine.cfg.

  7. If you created a server configuration file above, update the default hosts.

    The default configuration will list some default values for hosts, such as:

    These are the machines you will be using in your final setup. Ensure these match the host names of each machine you plan to add. The values are used to initialise the RRD database on the server. If you need to change this later, you will have to delete the ~/.temperature/temperature.rrd file, losing historic data. It’s worth adding in some spares.

    After setting up the configuration, you can either restart the service manually (run sudo systemctl restart temperature-machine) or wait about a minute and it will restart automatically.

    If you had previously built from source and modified your /etc/rc.local referencing the script. You can use the values here to populate your configuration. It would have includes the list of hosts after the command.

  8. Check the logs for activity (to check it’s all running ok)

  9. Try it out. Go to http://your_hostname:11900 from your favorite browser.


Run the apt-get update command to update your Raspberry Pi’s package lists with the latest versions of software, then upgrade temperature-machine:


Running as a Service

By default, the temperature-machine runs as a service in the background - it should be running as soon as you’ve installed it with apt-get. It will start on boot and restart if it develops a problem. We use systemd to achieve this.

Slot Machine Monitors

You can list all the services with systemctl list-unit-files and verify temperature-machine is enabled. If it’s disabled, run sudo systemctl enable temperature-machine to enable (and start) it.

Check the current status at any time with systemctl status temperature-machine.

If you want to disable it running as a service, run sudo systemctl disable temperature-machine and take a look at the section below to start manually.

If you want to stop the service temporally, use sudo systemctl stop temperature-machine.

If there is a problem, the service will attempt to restart after 60 seconds. That means, if it can't start up (for example, becuase there are no sensors attached), it will keep trying until the problem is resolved.

Running Manually

Assuming it isn’t running already (stop it with sudo systemctl stop temperature-machine), you can start it manually with the following (stopping with ctrl + c).

If you want to check the version you’re running (a good way to check it’s installed), try the following.

Machine Temperature Monitoring System

You can also run man temperature-machine to read about more options.

Wireless Temperature Monitor

The log file can be found in ~/.temperature/temperature-machine.log. The conventional /var/log/temperature-machine is currently unused.