- ARDUINO LED DIMMEN PWM HOW TO
- ARDUINO LED DIMMEN PWM SERIES
- ARDUINO LED DIMMEN PWM SIMULATOR
But the value of the total resistor (R1+R2) remains same. The value of R1 and R2 changes with respect to a change in the position of POT knob. Now, look at above equivalent schematic diagram of POT, Potentiometer will act as voltage divider circuit. Use a jumper wire to connect pin number A1 of the board and middle terminal of the potentiometer(POT), connect the first terminal of POT to the 5V (Vcc) pin of board and third terminal of POT to GND pin of the board. Here, you need to select an analog pin of Arduino. Look at the above fig.4 and start building a circuit on your breadboard/Simulator. STEP 1: Connect Potentiometer to any analog pin of Arduino Fig. Pull out all component mentioned above from your kit or from component list of the simulator. Now, let’s move on to building Light Dimmer. If you are looking for more details about Ohm’s Law refer to the link here.
ARDUINO LED DIMMEN PWM SIMULATOR
You can practically check the above observations by building a circuit as shown below in fig.3 using a simulator or you can build a physical circuit. if you increase the resistance ‘R’ of a circuit, then the current ‘I’ in a circuit will decrease proportionally and vice-versa.
If ‘V’ is constant, then ‘I’ is indirectly proportional to ‘R’. if you increase voltage ‘V’, then the current ‘I’ in the circuit will increase proportionally and vice-versa. If Resistance ‘R’ is constant, then ‘V’ is directly proportional to ‘I’ i.e. Mathematical Form of Ohm’s Law: V = I x R This law is based on the relationship between Voltage(V), Current(I) and Resistance(R). It is a very very important law in Electronics. We bought for our engineers this Arduino super-starter kit. Note: You can get these components fairly easily at many places (including online). Look at the internal structure of LED, the terminal with small kite shape is Anode (+ve) terminal. You can also identify terminals by looking at the LED from a side view as shown in above Fig. The terminal near to minus ‘-‘ shape/cut is a cathode (-ve) terminal. Observe at the outer body structure, you will see a circular body with a cut at one side of the body that looks like ‘-‘ (minus) shape as shown in above Fig. Take the LED in your hand and look at the LED from the top view. To know more about internal structure and terminals refer a link here. You can vary the resistance by rotating the knob of the potentiometer. Potentiometer (POT): It is a variable type of resistor. Components Required:īelow are the main components required for this tutorial other than Arduino Uno, Breadboard and Jumper Wires: You will also learn just enough electronics and theory to be able to understand and troubleshoot any problems you may face. You will produce something useful at the end of each tutorial. ARDUINO LED DIMMEN PWM SERIES
We have designed the series to be hands-on. This is the second installment in Arduino tutorial series.
ARDUINO LED DIMMEN PWM HOW TO
In this tutorial, you will learn about Ohm’s Law, how to build a Light Dimmer and two important basic modules/commands of Arduino i.e.
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