I already have detailed tutorials how to build and how the transmitter and the receiver work, so you can check them out for more details. Here I will explain the circuit diagram and the working principle of this Arduino RC airplane and how everything needs to be connected. You can get the...
The commonly measured physical quantities by a piezoelectric sensor are Acceleration and Pressure. Both pressure and acceleration sensors work on the same principle of piezoelectricity but the main difference between them is the way force is applied to their sensing element. In the pressure sensor, a...
The digital o/p is permanent and the analog o/p threshold can be changed. The working principle of soil moisture sensor is open & short circuit concept. Here the LED gives an indication when the output is high or low. Soil Moisture Sensor When the condition of the soil is dried up, th...
The basis working principle of a hovercraft is that the craft is lifted by a cushion of air. The central propeller blows air into underneath the craft, which inflates a skirt made out of soft material. When the air pressure in the skirt is high enough, the craft gets lifted. The constan...
In principle the heartbeat sensor is based on the principle of photoplethysmography, whereby the heart rate is measured by sensing the changes in blood flow through the index finger. The flow of blood volume is decided by the rate of heart pulses and since light is absorbed by the blo...
The ACS712 current sensor is based on the Hall Effect principle, where a magnetic field perpendicular to the current flow generates a voltage proportional to the current passing through the sensor. Hall Effect (source) This voltage can then be converted into a current measurement by reading the ...
The following figure is the working principle block diagram of the sensor module, the tiny signal received by the sensor is amplified, and then the signal is converted into square wave signal through the comparison circuit, and the output 0 and 1 digital signal is output, which is convenient ...
Note that an interrupt, as the name implies, is something that interrupts the normal flow of execution of the code. So, as far as I’m aware (sometimes there are some tricky exceptions hidden in the IDF framework), when an interrupt occurs, the running task halts, the interrupt service ...
Working of Hall Effect Sensor Module This Hall Effect sensor works on the principle of the Hall effect, which states that whenever a magnetic field is applied in a perpendicular direction to the flow of the current, a potential difference is induced. In other words, the Hall Effect is the ...
when you have one piece of material that has more electrons, and one piece that has less electrons, the electrons in the negative piece will be attracted to the positive piece. If there's a conductor in between these pieces, these electrons will 'flow' to the positive part: This is elect...