Most of us use passive infrared sensors in our daily life.
- Have you ever been into a bathroom where the lights turn on automatically?
- Have you ever walked near a house entrance and the door light turned on?
- Have you ever been into a supermarket or a store where the doors opened automatically?
Continue reading Passive InfraRed (PIR) sesnors
Measuring distances from our robot to other objects, is one of the most common data we want to obtain. For example, if we are building an autonomous vehicle, we want to check it’s distance from obstacles to help it make the right decision about it’s course. There are also many more examples of robots that we want them to activate mechanisms when something or someone gets close to them.
One of the simplest, cheapest and most accurate ways to measure distances, is by using ultrasonic sensors. Their working principle is based on the fact that sound is reflected upon most objects and materials. Continue reading Measuring distance with sound
Το τελευταίο project της φετινής χρονιάς (2017-2018) με τα παιδιά του Ομίλου «Μικροί Χάκερ», ήταν ο έξυπνος κήπος. Απαιτητικό και χρονοβόρο έργο το οποίο μας πήρε αρκετές συναντήσεις και μήνες για να το ολοκληρώσουμε.
Η τελική κατασκευή μπορεί να φιλοξενήσει δυο γλάστρες και να ελέγχει την υγρασία του εδάφους τους, την θερμοκρασία του αέρα καθώς και την φωτεινότητα. Continue reading Ο έξυπνος κήπος
This is a project my students implemented during the 2017-2018 evening club Young Hackers. It is a demanding project for elementary school students and it took us many meeting to accomplish. It contains a small 5V solar panel that can rotate in two axes so as to harvest maximum power from the sun. The project is based on the Dual Axis Solar Tracker Project from OpenSourceClassroom. Continue reading Rotating solar panel
An Arduino project implemented in the Robotics club “Young Hackers” in our school (Experimental Elementary School of Florina). Continue reading Line follower with Arduino