20pcs Electronic DIY LED Dimming Lights Series and Parallel Circuit Technology Small Production Kit
$54.99
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
20 x DIY LED Dimming Lights Technology Small Production Kit
Weight | 0.54 kg |
---|
Customers Also Viewed
60V 17S 45A Li-ion Lithium Battery Protection Board BMS PCB System
$45.75Battery Protection ModuleAdd to cartNote:The protective plate cannot be used in parallel.SpecificationsContinuous discharging current:45AInstantaneous diacharge current:100ACharging voltage:67.2VCharging current:45AOver-charge detect:4.28±0.05VProtect delay:100msOver-charge release:4.08±0.05VBalanceDetect voltage:4.2±0.025VRelease voltage:4.2±0.05VBalance current:60±5mAOver-discharge:2.55±0.08VOver-discharge detect delay:50mSRelease voltage:2.9±0.1VDetect voltage:150mVDetect delay:15mSCurrent detect:130±10AResistance:≤15mΩWorking current:≤60uASleep current (when over-discharge):≤10uAWorking temperature:-30~80→Size:120 x 60 x 9mm:Details:Specification:Unit:RemarkCharge:Charging voltage:71.4:VRecharging current:45 (max):ADischarge:Continuous discharge current:45 (max):AInstantaneous discharge current:150 (max):AOvercharge protection:Overcharge detection voltage:4. 25 ±0.025:V:Single coreOvercharge protection delay:100:mSOvercharge release voltage:4. 05 …
60V 17S 45A Li-ion Lithium Battery Protection Board BMS PCB SystemRead More
25W 5V Foldable Solar Panel Solar Power Bank Pack with Dual USB Port for Backpack Camping Hiking
$78.68Smart Robot & Solar PanelAdd to cartFeatures∵ High-Efficiency Ponocrystalline Cell, up to 19%.∵ Eco-friendly & durable material.∵ Applied in charging 5V device as a power bank.∵ Portable, foldable and lightweight, with buckle to be fold firmly.∵ Produce continuous stable output even in cloudy day.∵ Suitable for outdoor activities, outdoor working or emergency.ParametersPmax:25WUSB Output Voltage:5VUSB1 Output Current:2000mA USB2 Output Current:1200mAQuantity of Single …
3Pcs Original Hiland DIY Multifunction Transistor Tester Kit for LCR ESR PWM Generator M328
$66.77DIY Electronic KitsAdd to cart3Pcs DIY Multifunction Transistor Tester Kit For LCR ESR Transistor PWM Signal Generator M328FeatureA key measurement operation , auto power off delay . Shutdown current is only 20nA, support battery operation.Automatic detection PNP and NPN type bipolar transistors , N, P -channel MOSFET, JFET FET , diodes , two diodes, thyristors , resistors , capacitors …
3Pcs Original Hiland DIY Multifunction Transistor Tester Kit for LCR ESR PWM Generator M328Read More
5pcs 2 Slots AAA Battery Box Battery Holder Board with Switch for2xAAA Batteries DIY kit Case
$9.36Other Module BoardAdd to cartSpecificationsSupport Model:AAA BatteryShell material:ABS Cable:1007 (150mm)Metal spring:carbon steel nickel plating by NCAA salt spray test, stainless steel spring.Size:53*24*13 mmPackage Included5 x 2 Slots AAA Battery Holder Plastic Case Storage Box
10pcs Low 3.5ohm PCA9306 Dual Bidirectional Voltage-Level Conversion Module Converter
$86.01Sensor & Detector ModuleAdd to cartDescriptionThis is a conversion board for the PCA9306 dual bidirectional voltage-level translator. Because different parts sometimes use different voltage levels to communicate, voltage level translators can be the key to making different parts play nice.The PCA9306 is a dual bidirectional I2C-bus and SMBus voltage-level translator that’s operational on the low side from 1.0 V to …
10pcs Low 3.5ohm PCA9306 Dual Bidirectional Voltage-Level Conversion Module ConverterRead More
5pcs Delay Timer Switch Adjustable 0-10sec with NE555 Electrical input 12V 10A
$18.51Relay ModuleAdd to cartDescriptionTiming from Microseconds to HOURSSimple CircuitryPrecision Pulse Generation / Timing,FMAX = 500 KHzUse a single 4 to 16 VDC supplyExcellent temperature stability 0.005% / °CAdjustable Duty CycleCountless Application and Information SourcesChip (NE555) CharacteristicWhen unconnected with the supply power, the state of the module is inchNOinch [ normal open ], CB and COM are conductive. CK …
5pcs Delay Timer Switch Adjustable 0-10sec with NE555 Electrical input 12V 10ARead More
Reviews
There are no reviews yet.