3pcs Electronic DIY LED Dimming Lights Series and Parallel Circuit Technology Small Production Kit
$10.56
Shipping:Standard Shipping about 10-25 business days
Secure Payment:Paypal,VISA,MasterCard
Description
The purpose of the experiment
1. Understand and recognize the light-emitting diodes and illuminate the light-emitting diodes (LEDs);
2. Understand the role of understanding resistance, series and parallel resistance;
3. Understand the self-locking switch;
4. Understand and recognize adjustable resistors and use adjustable resistors;
Experimental steps
Step 1:The long leg of the light-emitting diode (LED) is the positive pole, and the short leg is the negative pole. First, the long wire of the LED is connected to the black wire (negative electrode) of the battery case, and the short leg of the LED is connected to the red wire (positive electrode) of the battery case. At this time, the light emitting diode (LED) is not lit. Then send it over again, let the long leg of the LED connect to the red line of the battery box, and the short leg of the LED is connected to the black line of the battery box. At this time, the LED lights up, indicating that the LED is in one-way operation and the single-pass characteristic of the diode .
Step 2:In the circuit of the experimental step 1, a resistor of 220 ohms is inserted in series, and the brightness of the LED lamp is lowered, and the resistance hinders the current.
Step 3:Connect a 220 ohm resistor in parallel with the resistance in the circuit of the experimental board 2. The brightness of the LED is increased, indicating that the total resistance of the resistor in the circuit is reduced after the resistors are connected in parallel.
Step 4:Change the two resistors of the experimental step 3 from parallel to series. After the series connection, the brightness of the LED lamp is the lowest. After the series connection of the resistors, the total resistance of the resistor in the circuit increases.
Step 5:Replace the original resistor with a potentiometer. The potentiometer has 3 feet, and the resistance of pins 1 and 3 is fixed. The resistance of pins 1 and 2, 2 feet and 3 feet can be changed by adjusting the potentiometer knob. When experimenting, you can pick up 2 of them. The foot has to experiment many times, adjust the potentiometer knob to observe the change of LED brightness, so that you can fully understand the potentiometer.
Step 6:Know the self-locking. Press and wait for the light to be on, then press the light to turn off.
Package included
3 x DIY LED Dimming Lights Technology Small Production Kit
Weight | 0.081 kg |
---|
Customers Also Viewed
3pcs L298N Motor Driver Module 4 Chaneel Motor Drive Smart Car Module
$41.54Driver ModuleAdd to cartDescriptionThe four channel L298N motor drive module integrates two L298N chips and can drive four DC motors to realize the control of forward and backward rotation and motor speed. The module is equipped with LM2596S step-down chip. If the motor with 7V voltage or more is driven, 5V power can be output to the control …
3pcs L298N Motor Driver Module 4 Chaneel Motor Drive Smart Car ModuleRead More
Geekcreit D1 Mini ESP32 ESP-32 WiFi+bluetooth internet of Things Development Board Based ESP8266 Module
$21.86Motherboard & Development BoardAdd to cartMore informations:https://github.com/LilyGO/ESP32-MINI-32-V2.0DescriptionThis is D1 Mini ESP32 ESP-32 WiFi+bluetooth Internet Of Things Development Board.Use exampleit can also match the next productPackage included4 x Long female pins4 x short female pins4 x Normal pins1 x mini D1 ESP32
AF1020 Dust-proof Probe Super-stable Pipe-type Current-type Temperature and Humidity Transmitter Temperature Senor Humidity Sensor
$176.16Solar CollectorsAdd to cartSpecificationModel:AF1020 Type Temperature and Humidity TransmitterTemperature measurement range:- 40 ~+80 (℃)Measurement accuracy:+-0.5 (℃)Working Voltage 15-36 (V)Humidity accuracy:+-3% RHHumidity measurement range:0-99.9% RHCurrent output:4-20 m AInstructions1. Power cord positive DC18~36V (red wire)2. Power ground wire GND (black wire)3. Humidity current output 4~20MA (yellow line)4. Temperature current output 4~20MA (white line)Installation sequence1. Connect the red, black, yellow and …
3Pcs 5M Meter thermometer Electronic Digital Display FY10 Embedded thermometer indoor and Outdoor Temperature Measurement
$20.72Test & Measuring ModuleAdd to cartFunction introductionOverall size:48*28*15mmInserted hole size:46*27mmLCD temperature display-50→ to 110→ temperature measurement, 0.1 degree resolution.C and F display versions are availableStandard 0.8m waterproof probeCable length:5 meterPackage includes3 x Thermometer
Peacefair PZEM-028 AC Digital Multifunction Meter Voltmeter Ammeter 0~100A/400V Power Factor Meter
$27.97Electronic Accessories & SuppliesAdd to cartError adjustmentThe product is 100% calibrated before leaving the factory, and the user can also manually adjust the error by himself. The method is as followsStep 1:Long press the button (about 3 seconds) until the digital digit on the screen flashes, then release the button;Step 2:Digital flashing means entering the error adjustment state, the digits …
3pcs 433MHz RF Wireless Receiver Module Transmitter kit + 2PCS RF Spring Antenna OPEN-SMART for Arduino – products that work with official for Arduino boards
$12.11Smart ModuleAdd to cartSize ConversionInchesCentimetersPlease according to your own measurements to choose your suitable size. The tags inside the items will show in our Asian (Type) size.DescriptionThe kit includes one pair of transmitter and receiver modules and one pair of spring antennas for increasing the communication distance. And the frequency is 433MHz. It is very popular for remote …
10pcs DC 3.7-6V To 400KV Boost Step Up Power Module High Voltage Generator
$55.81Power Supply ModuleAdd to cartFeatureThe high-voltage module uses the principle Tesla coil is made of high-voltage pulse output voltage current, small size, high efficiency, simple external circuit(just plug in the switch, the battery can be) discharge intensity violent.SpecificationModel:MC-105Volume:Length 65mm Diameter 24mm, Diameter of cut surface 22mmVoltage:Input DC3.7-6V, output DC200-400KVCurrent:Input 4A, output 0.5ALength:Input 10 cm or so, the output is …
10pcs DC 3.7-6V To 400KV Boost Step Up Power Module High Voltage GeneratorRead More
Reviews
There are no reviews yet.