![]() ![]() Industrial PLCs and their consumer product counterparts are key to helping makers of all levels of expertise bring their ideas and inventions to life. Not only have more affordable alternatives to traditional PLCs like Raspberry Pi and Arduino become available, there has been a rise of maker communities for novices and also a growing demand for experts in the robotics process automation market. That, however has changed as the maker movement, an offshoot of the DIY trend, has gained traction. Until recently, these digital mainstays were almost exclusively in the domain of people working directly in the service and manufacturing industries. I would use an Arduino to power my self-watering plants or track the temperature outside, or power some home automation stuff, but I would use a Raspberry Pi as a retro gaming platform or a web server.Programmable logic controllers are one of the wizards behind the curtain of industrial automation. It does not even have a network (I’m talking about the Uno) out of the box.Ī Raspberry Pi is more like a small computer without a screen, which you program using more traditional tools. You don’t have to worry about anything as there is nothing else than your program running on the Arduino. In my opinion Arduino is best when you want to compile a program for it, attach a battery or a power connector and put it somewhere to run, and play around with sensors and other nice stuff that interfaces with the real world. ![]() There are similar tools for other languages, like pyserial and Gobot. If you can live with the constraints of having the Arduino attached to the USB port of the computer, you can run Node.js code on it using the Johnny Five project, which is pretty cool. What about programming?Īrduino is best to be programmed using C++ and its “Arduino language” which is just C++ with some convenience features that make it easy for beginners to start with. You can program a Raspberry Pi in pretty much any programming language you want, as if you run Linux there is a vast choice for you. I researched those numbers, but I haven’t measured them myself yet. Individual I/O pins in Arduino can drive 40mA while Raspberry Pi GPIO pins can each drive a maximum of 16mA. Right? Wrong.Īrduino consumes much less power ( ~50 mA idle) than an a Raspberry Pi ( 700+ mA)Īrduino has 20 I/O pins. Given those differences you might think a Raspberry Pi is so much more powerful and capable than Arduino, so you should use that. It’s a mini computer, while Arduino is much more simple. Raspberry Pi runs an operating system, which is usually Linux. It can only run programs that were compiled for the Arduino platform, which mostly means programs written in C++. Lots of things.Īrduino has no operating system. In terms of I/O, Arduino has an USB-B port that can be used by a computer to transfer new programs to run, a power input and a set of I/O pins.Ī Raspberry Pi is much more sophisticated in this regard, having a Video output, an HDMI port, an SD card port, an Audio jack, CSI camera port, DSI display port, 4 USB 2.0 ports which you can use to attach USB devices, a Gigabit Ethernet jack, Wireless LAN, Bluetooth 4.2 and I/O pins (GPIO) as well. ![]() The Raspberry Pi comes with a 64-bit microprocessor. Arduino comes with an 8-bit microcontroller. Turns out, they are very, very different. They look pretty similar, at a first look. Here is Arduino Uno, the board we’ll take as an example, although Arduino offers many different boards. There are many, many others, but those are the two most popular and in this article I want to explain the difference between those 2. Two of the most popular platforms for such a thing are Arduino and Raspberry Pi. ![]() When I got the idea of playing around with electronics after 15+ years of not touching a single resistor, I recall I spent some time searching which device was best for what I wanted to do. A comparison of two of the most popular platforms to tinker with ![]()
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