Today’s example will involve an Arduino Uno board with a HC-SR94 Ultrasonic Sensor. In this section, I will show you how we can use CoolTerm to easily monitor some sensor data in real time. How to use CoolTerm to Monitor Arduino DataĪrduino is a popular microcontroller platform that utilises serial port communication. In this case, we have to make use of a serial terminal like CoolTerm to perform tests on data transmitting and receiving. This will help us to ensure that everything is working as expected. Compared to parallel communication (4, 8 or 64-bit), serial communication is popular in embedded systems due to low cost and effective long-distance transmission.įor makers and engineers, we sometimes need to monitor the data that is transmitted between our devices and computer. Serial communication continues to be used all around us today. If you are unfamiliar with serial communication and want to know more, please visit our detailed beginner’s guide – RS232 vs TTL: Beginner Guide to Serial Communication. In contrast, parallel communication sends several bits as a whole, through a few parallel channels. What makes serial communication distinct is that data is sent sequentially one bit at a time through a single channel. What is Serial Communication?Īs you might have guessed, serial communication is used to send and receive data to peripheral devices. This makes CoolTerm a popular and affordable option for users who need a convenient and effective serial terminal software solution. I am thinking that the device might be called The Earth Doctor.CoolTerm is a user-friendly terminal for serial communication with hardware that has been connected to your computer via serial ports.ĬoolTerm is freeware/donationware developed by Roger Meier, and is available for Windows / Mac / Linux devices. Note: I am slowly collecting source code libraries for the arduino smart garden using Github.Īlso, I just bought a domain name for a website (and I am now debating what website platform to use to display the data. Wordpress, or Squarespace? I have an intern from the MIS department at Temple who is going to help build the website. This program can hold huge data sets mainly for “Big Data” business analytics. I also experimented with importing the data into a software called JMP, which is a professional statistical program with a free trial download. csv (comma separated values) format, it can be imported into Excel and visualized. The charts were created by turning the arduino data from the serial monitor into a text file using a program called CoolTerm. One can see that the shape is a positive linear regression and generally mimics the shape in the first graph, the sample size is just smaller. Since the arduino captures the data in milliseconds, it is cleaner to see the data in averages. The second graph shows the average temperature per second. It picked up my body heat and the temperature rose. I created variation in the reading by putting my hand near the sensor. The chart below is the result of a test on the arduino using a temperature sensor to measure the degrees in Fahrenheit in the room for 1 minute. I have done several tests with the arduino before setting out to build my own smart garden device. The growerbot I had ordered online is not going to ship until January 2016, so it is time to start from scratch and design my own instead. In my last posts ( 1 and 2), I proposed a question (If A Garden Could Talk, What Would It Say?) and set out to learn how to program arduino micro-controllers to speak the language of the garden through data visualization. These tools include: arduinos, raspberry pis, 3D scanners and 3D printers. Here at the Digital Scholarship Center, there is a large focus on software, data visualization, mapping, virtual reality and textual analysis, but there are also several physical computing tools that put this center into the makerspace category. These people are hobbiests and entrepreneurs programmers and designers. This has created a producer rather than consumer subculture that is more interested in building things themselves, than buying the latest name brand product. Dale Dougherty, the founder of Make Magazine (2005), (Also: the concept of a Makerspace and the largest Do It Yourself (DIY) Festival in the world called Maker Faire), has been the catalyst for a huge movement inspiring many Americans to tinker with electronics and traditional building tools.
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