Please let us in the comment zone any suggestions that you think will improve the article! If you like the article click the follow button from social media to stay in touch with us! Like in the previous posts we start with Timer 2, mentioning that it is a 8 bit timer, so it can count up to 255,…
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Please let us in the comment zone any suggestions that you think will improve the article! If you like the article click the follow button from social media to stay in touch with us! The main difference between Timer 1 and Timer 0 or Timer 2 is that it is a 16 bits timer(instead 8 bits the others) so…
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Please let us in the comment zone any suggestions that you think will improve the article! If you like the article click the follow button from social media to stay in touch with us! The default frequency of arduino PWM pins is around 490Hz for 9, 10, 3,11 and around 980 HZ for 5, 6, but for many applications we…
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Please let us in the comment zone any suggestions that you think will improve the article! If you like the article click the follow button from social media to stay in touch with us! We all know what digitalWrite and digitalRead do but these are slow. If we have an application which need some very short times what can…
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How many time do you want to control a dc motor in both directions with control of the rotation speed. It can be done with a H bridge, but a couple of times we haven’t controlled very well the input signals and we have burned the bridge. So in this project we will use two relays and…
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Did you know you can make your own security/surveillance system for your house??? In this project we have made such a system consisting of temperature/humidity sensor(from air), gas/ smoke sensor, movement sensor, humidity(flooding) sensor, buzzer for noise alarm, a keypad to enable/disable some sensors when you are home and a gsm module for moments when you are…
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In some application we need to introduce some data(like some number values, PIN etc), so for that in this example we will connect a keypad 4×4(16 digits) to an arduino uno. In this projects first we will understand how a keypad work and after, we have uploaded a small program with an 20×4 LCD and a control…
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First of all here you have sim800 hardware design and here the AT commands. SIM800L is a quad-band GSM/GPRS module that works on frequencies GSM 850MHz, EGSM900MHz, DCS1800MHz and PCS1900MHz. SIM800L features GPRS multi-slot class12/ class 10(optional) and supports the GPRS coding schemes CS-1, CS-2, CS-2, CS-3 and CS-4. The power supply for 800L is between 3.4V…
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In this project we will measure the temprature and humidity with the DHT 11 temperature and humidity sensor with an arduino and a 20×4 LCD display. Some characteristics of this sensor are: 1 Can detect the environmental humidity and temperature 2 Humidity measurement range: 20% 95% humidity 3 Humidity error +-5% 4 Temperature measurement range:0-50 °C 5…
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Almost all of you have at least a plant, or a garden and how many times did you forget to wet them. With this sensor you can observe when the soil is dry, or with a buzzer or a LED arduino can “tell” you this situation. This sensor is very easy to connect to arduino. It can…
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