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
18v 15w 410mm*200mm*3mm Semi-flexible Solar Panel with Cable for off-road Vehicle Outdoor Working
$62.25Smart Robot & Solar PanelAdd to cartFeatures– Durable with PET backsheet, no glass.– Unique frameless design includes 4metal reinforced mounting holes for easy installation– Light weight,easy carrying,easy shipment,easy installation.– Thin:the thickness is only 3mm, easy joint to your yacht or RV roof , boat etc.– Solar energy conversion rate up to 19.6-20%– Rounding corners to prevent from being scratched.Hardening process surface …
RX HF 1-50MHz Durable Portable Antenna Splitter Radio Communication BNC Connectors Home Professional Metal
$29.96Other Module BoardAdd to cartFeaturesHF Antenna RX splitter has one antenna port and two receivers ports.Frequency range:100kHz-50 Mhz. Impedance (I/O)-50 Ohm.SpecificationsMaterial:Metal, PlasticColor:As ShownTypes:Finished ProductFrequency range:100kHz-50 MhzImpedance (I/O)-50 OhmAverage port to port isolation measured-36 dBAverage signal attenuation(loss)-3.2 dBConnectors type-BNCSize:(Approx) 150*150*50mmPackage Included1 x Antenna Splitter RX HF 1-50 MHz
3Pcs DIY LED Lamp Kit LED Flash Set Electronic Production Kit
$30.16DIY Electronic KitsAdd to cartFeatureKit Model:LSD-73Dimensions:100 * 80mmWorking voltage:DC4-5VPackage weight:55 gramsNote:This is a DIY kit, you need to assemble it, to get the installation document.Package includes3 x DIY LED Lamp KitSoldered PCB, for reference only!
12V 300W Portable Diesel Fuel Oil Transfer Pump Self Priming Oil Pump 50L/Min
$200.46Electrical Pump & ValveAdd to cart12V Portable Fuel Diesel Pump Oil Transfer Pump Self Priming 50L/Min 300WSpecificationsMaterial:Pure copper motor + cast ironQuantity:1 setLift distance:15mAbsorbing distance:5mRotate Speed:5000R/minFlow Rate:50L/minVoltage:12VPower:300WProduct dimension:20cm x 14cm x 10cm (Approx.)Package size:30 x 16 x 17cm(Approx.)Used for pumping, oil, kerosene and diesel oil.Not suitable for petrol.Features-Self priming.-Low working noise.-Powerful 12Volt 300W motor.-With handle so it is easy to …
12V 300W Portable Diesel Fuel Oil Transfer Pump Self Priming Oil Pump 50L/MinRead More
5Pcs Geekcreit 36 Value Electronic Components Storage Assortment Box
$84.81Electronic Accessories & SuppliesAdd to cartDescriptionFormat size of this electronic components assortment box can be assembled arbitrary, varies of intervals designed to facilitate access to small parts and store, pick parts very easy.Specification36 value:27.0 x 17.5 x 4.5cmPackage included5 x Electronic components assortment box
5Pcs GPIO Pin Reference Board for Raspberry Pi 2 Model B & Raspberry Pi B+
$17.24Raspberry Pi & Orange PiAdd to cart5Pcs GPIO Pin Reference Board For Raspberry Pi 2 Model B & Raspberry Pi B+FeatureCompatible with Raspberry Pi 2 Model B & Raspberry Pi B+Material:PCBWith marked you can easily distinguish all leads of GPIODimensions:5.3 cm x 1 cm x 0.1 cmPackage included5 x GPIO Pin Reference Board
Plantower PMS7003 G7 PM2.5 Sensor Laser Particle Sensor Detector Air Quality Tester
$56.85Sensor & Detector ModuleAdd to cartFeatureParameter:Index:UnitParticulate matter measurement range:0.3 ~ 1.0; 1.0 ~ 2.5; 2.5 ~ 10:Micrometer (um)Particle counting efficiency:50% @ 0,3 microns 98% @> = 0.5 micronsEffective range of particulate matter concentration (PM2.5 standard value):0-500:Μg / m3Particulate matter concentration resolution:1:Μg / m3Particulate matter concentration consistency (PM2.5 standard value) *:± 10% @ 100 ~ 500μg / m3± 10 μg / …
Plantower PMS7003 G7 PM2.5 Sensor Laser Particle Sensor Detector Air Quality TesterRead More
Reviews
There are no reviews yet.