Fire can cause damage to lives and financial loss. The first indication of fire is smoke and fire, or gases too. This paper presents the application of a fire detection system. This fire system will use Arduino Nano as a microcontroller and the wireless nRF24L01 as communication data. this ...
For that a zero crossing detector is necessary. This is a circuit that tells the Arduino (or another micro controller) when the sinus-wave goes through zero and therefore gives a defined point on that sinus wave. Opening the Triac after a number of microseconds delay starting from the zero ...
Not only that but they already pack a battery connector (would need to find out the connector current rating though), battery charger, voltage level detector and many more. On top of that they can alternatively be programmed using Microcpython (ESP), Circuitpython (nRF52840) and others, thus...
(the cold CO2 coming off the dry ice will keep the acetone from catching fire. You could probably throw a lit match into it and have it go out, especially if it wasn't very windy (you'd be doing this outside for hopefully obvious reasons). I wonder how high I could get the main...
A custom duty or localized taxes may be applicable on the shipment and would be charged by the recipient country outside of the EU27 which should be paid by the customer and these duties are not included in the shipping charges been charged on the order. ...
Now turn of the lights and check it out. The HC-SR501 should now work, triggering whenever it spots some human or animal activity in the room. You’ve just constructed a light-sensitive motion detector, perfect for illuminating those dark corners at night. It also makes an excellent emergen...
a fire sensor that could detect fires within 1 m was used to prevent fires. The measured value could be checked through a liquid crystal display (LCD), and an alarm could be triggered through a buzzer. The fire could be extinguished using a motor and fan, but the effectiveness of this ...
The DHT11 measures temperature with a surface mountedNTC temperature sensor(thermistor) built into the unit. To learn more about how thermistors work and how to use them on the Arduino, check out ourArduino Thermistor Temperature Sensor Tutorial. ...
The Fat Electrons built a detector to study the muons as a proof of Einstein’s theory of relativity. Most Professional Team: Team LatSat from Latvia LatSat obtained and analysed visual data to count objects in the area with potential applications including land surveying, animal population tracki...
(the cold CO2 coming off the dry ice will keep the acetone from catching fire. You could probably throw a lit match into it and have it go out, especially if it wasn't very windy (you'd be doing this outside for hopefully obvious reasons). I wonder how high I could get the main...