Sooner or later, everyone bitten by Arduino bug would want to make his own extension. At the beginning Proto Shield may be sufficient. When we have a working prototype, we might want to convert it into a series model, so PCB board will be needed. On Arduino Forum there is a link to a very […]
Category Archives: For beginners
Galvanic isolation: optocouplers
For sure, you have heard the term galvanic isolation many times. In brief, it’s about separating the source of signal from the microcontroler in order to prevent it from unwanted and dangerous voltage spikes, while allowing to read the signal. Such a separation is provided by optocouplers. The optocoupler contains in common package both infrared […]
Tilt sensor
Nettigo offers tilt sensors with 30° and 60° (exactly from -30° to +30°) operating range. Tilt sensor is a kind of switch. The difference between it and regular switches is that the current starts to flow through it when it’s tilted. Such a sensors are commonly user in car alarm system They are monitoring car’s […]
Pin header soldering
During meetings with readers I found out that many of them like the Arduino project, but the greatest barrier is soldering. Some are literally scared of this – their hands are trembling. In this article I would like to make soldering more familiar. Some of electronic parts available as printed circuit boards with ready-to-use devices […]
Temperature and LCD
In Nettigo recently appeared LCD kit for Arduino – it is 2×16 alphanumeric LCD with soldered connector fitting to a breadboard and 10 kΩ linear potentiometer for contrast regulation. The LCD module has HD44780-compatible controler, what means LiquidCrystal library will be able to handle it. How to connect it? Let’s begin from the code: #include […]
Arduino’s eye, or about a photoresistor, not Tolkien’s mythology
Arduino’s eye – sounds like a quote from J.R.R. Tolkien, while it’s about connecting photoresistor to Arduino. With this article I would to begin short course dealing with basics of electronics. Photoresistor is a element whose resistance is dependent of amount of light falling on it. What only remains is to measure this resistance. In […]
LED diodes – how to flash and light
Recently there was silence on Starter Kit, because before holidays I was preparing to Bootstrap 9.4, what took most of my free time. Now, taking advantage of free day I’m making up for it. Previously, we were dealing with reading from external sensor (photoresistor). Now we will try to show this reading. We will use […]
Arduino – play!
A long silence on the blog is just broken! During the last few months I was strongly engaged in projects not connected with Arduino, whole time was absorbed by keeping the Arduino shields shop, servicing customers, searching for new suppliers, etc. Now I have a bit time which I can spend by documenting experiments with […]
How to measure temperature with Arduino and MCP9700
One of the sensors included in Arduino Starter Kit is a temperature sensor. It’s analog device which doesn’t need any additional elements to work (it’s exactly MCP9700-E/TO). So, briefly speaking, after connecting ground and power supply we are already able to measure temperature. On the sensor’s page in Nettigo shop there is PDF datasheet in […]
Let’s play, daddy – Family Feud
I was inspired by a simple DIY game seen on the web (I can’t find the link now) and despite the fact that original version was based on greatly simpler PIC I decided to build it with Arduino Starter Kit. The rules are simple – the one, who will press his button faster after a […]