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
50Pcs 12V Female DC Power Socket Jack Plug Wire Connector Cable CCTV DC 5.5 x 2.1mm
$32.76Module ComponentsAdd to cartFeaturesDC 5.5 x 2.1mm.Wire Specification:0.15mm²Length:Approx. 27cmMax Current Rating:2AMax Power Rating:60WTransmission voltage:1V~38VUsage temperature:-50→~65→Material:Copper WireUse for:Led Driver/ Strip connector/ CCTV Camera.Package Included50 x 12V DC Connector Cables
EMC EMI Low Noise Pre-RF Amplifier 20dB 5MHz-5GHz RFamp002
$87.30RF amplifierAdd to cartParameter1. Power supply voltage:11V-15V DC2. Gain:greater than 20DB in the 30MHz-1GHz frequency band3. Input and output impedance:50┯4. Maximum output power:10dBm5. Input signal:-10DBm6. Bandwidth:30MHz to 3GHz (gain is different under different frequencies)Measured gain (prototype)F=5.0MHZ GAIN=13.15DBF=10.0MHZ GAIN=23.89DBF=30.0MHZ GAIN=27.06DBF=50.0MHZ GAIN=27.92DBF=500.0MHZ GAIN=24.84DBF=1.0GHZ GAIN=22.01DBF=1.5GHZ GAIN=20.72DBF=2.5GHZ GAIN=17.65DBF=3.5GHZ GAIN=10.06DBF=4.0GHZ GAIN=9.09DBF=5.0GHZ GAIN=8.90DB7. Noise figure NF (theoretical value)500MHz@ 0.6dB1GHz@ 0.7dB2GHz@ 0.7dB3GHz@ 1.1dB4GHz@ 1.6dB5GHz@ 2.1dBComparison …
EMC EMI Low Noise Pre-RF Amplifier 20dB 5MHz-5GHz RFamp002Read More
RX24 100W 30R 30RJ Metal Aluminum Case High Power Resistor Golden Metal Shell Case Heatsink Resistance Resistor
$6.55Electronic Accessories & SuppliesAdd to cartFeaturesIt has the characteristics of small size, high power and high precision.It is sealed by professional technology.It has the advantages of stronger heat resistance, higher temperature resistance, moisture resistance, high anti-vibration and explosion protection.Scope of application:Testing power supply, frequency converter, automobile LED lamp, automation equipment, audio, frequency divider, servo industry and other harsh industrial control …
5pcs SRX882 433/315MHz Superheterodyne Receiver Module Board for ASK Transmitter Module
$16.71Smart ModuleAdd to cartItem OverviewThe SRX882 is a super-heterodyne receiver module with a micropower and strong driving force in conjunction with the ASK transmitter module. It has high stability, anti-interference and high cost performance, and also has a strong driving force, which can pass ROHS, FCC, CE and other certifications. The data port can be directly connected to …
5pcs SRX882 433/315MHz Superheterodyne Receiver Module Board for ASK Transmitter ModuleRead More
13.5mm Adjustable Laser Pointer Module Holder Mount Clamp 3 Axis
$42.51Engraving Parts & AccessoriesAdd to cartDescriptionMaterial:stainless steelColor:blackMount Inner Diameter:13.5mmSize:40X60mm/1.57X2.36inch(L*H)Feature1. Stainless steel laser moudle holder2. Professional angle and height adjustable design3. Installed on the laser module,it can become a professional laser pointer or laser locator4. Can also used a as a heatsink for the laser module,extend the laser module life time5. Fit for 12mm diameter laser modulePackage included1X Laser Module Holder
Mask Scary Glow Mask LED Mask for Halloween Mask Party Masks Neon Maske Skeleto Halloween Party Decor
$17.17EL ProductsAdd to cartColor. Red / Color. Orange / Color. Yellow / Color. Blue / Color. Blue / Color. Purple / Color. White / Color. Pink / Color. Fluorescent Green / Color. Green / Color. Transparent Blue /
Reviews
There are no reviews yet.