5pcs Electronic DIY LED Dimming Lights Series and Parallel Circuit Technology Small Production Kit
$16.60
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
5 x DIY LED Dimming Lights Technology Small Production Kit
Weight | 0.135 kg |
---|
Customers Also Viewed
10pcs DC 12V 6A 3 String Battery Protection Board Panels Solar Street Lights
$29.51Other Module BoardAdd to cartDescriptionSize:56x45x3mmContinuous working current:Within 6ACharge current:Within 6ABalance charging:YesShort circuit protection:YesFunction:Prevent overcharge, overplay, circuit protectionSuitable assembly:Nominal 3.7V electric core / three stringsPackage Included10 x 12V Battery Protection Board
10Pcs Green LED Power Symbol Momentary Latching Switch LED Light Push Button SPST
$20.86Electronic Accessories & SuppliesAdd to cart10Pcs Green LED Power Symbol Momentary Latching Switch LED Light Push Button SPSTDecriptionLatching type:Push it– on, push it again — offLED color:GreenSize(H*D):1.4 x 1cm / 0.55inch x 0.39inch (approx)Quantity:10 pcsFunction:MomentaryLED light voltage:3.2VSwitch voltage:12VMaximum operating current:20mAWith led light, with power symbol, light touch switchEasy to use and installNote1. Please check the picture and part number carefully …
10Pcs Green LED Power Symbol Momentary Latching Switch LED Light Push Button SPSTRead More
XH-M572 High-power Digital Power Amplifier Board TPA3116D2 Chassis Dedicated to Plug-in 5-28V Output 120W
$12.31Amplifier BoardAdd to cartProduct parametersProduct name:digital power amplifier boardProduct model:XR-M572Chip model:TPA3116Input voltage:DC 8-28V (24V recommended)Output resistance group:4-8┯Appearance size:83*60*25MMProduct weight:65 gramsPackage includes1 x digital power amplifier board
YouLoop Magnetic Antenna Portable Passive Magnetic Loop Antenna for HF and VHF
$39.35Other Module BoardAdd to cartSpecificationHF Response:10kHz to 30 MHzVHF Response:up to 300 MHzMaximum Power:250 mWWeight:230gFeedline Length:6m (SMA male to male)Features-Passive design-No tuning required-Low-loss wide-band BALUN with 0.28 dB loss typ.Package Included-1 x T-shaped BALUN-1 x Phase Inverter-2 x 1m RG402 Coax Loop Cable-1 x 6m RG174 Coax FeedlineNoteThis antenna is not waterproof. If it is used outdoors, please do …
YouLoop Magnetic Antenna Portable Passive Magnetic Loop Antenna for HF and VHFRead More
M5Stack ATOM Matrix PICO ESP32 Development Board Kit IMU Sensor Python
$37.17Motherboard & Development BoardAdd to cartDescriptionATOM Matrix is the most compact development board in the M5Stack development kit series yet with a size of only 24 * 24mm. It provides more GPIO pins and is very suitable for handy and miniature embedded device development. The main control adopts the ESP32-PICO-D4 chip, which comes integrated with Wi-Fi and Bluetooth technologies and …
M5Stack ATOM Matrix PICO ESP32 Development Board Kit IMU Sensor PythonRead More
5Pcs DC-DC Buck Module 6-24V 12V/24V to 5V 3A USB Step Down Power Supply Charger Efficiency 97.5%
$17.46Boost & Buck ModuleAdd to cartFeaturesThe max output current 3A, long time use 2.1A, enough useNew design, 3 solid state ceramic capacitors(MCC), more safe and low rippleSynchronous rectification, High efficiency, 6.5V to 5V 0.7A can up to 97.5%, 12V to 5V 1A can up to 94%Flat copper inductor, improve conversion efficiencyWith output overvoltage protection. There is 1.5A fuse, output 5V …
6V 180L/H Solar Power Floating Fountain Garden Landscape Water Pump 55-75cm Lifting
$36.44Electrical Pump & ValveAdd to cartSpecificationSolar panels:6V/1.4W Voltage:3.7-12 v Maximum flow rate:180L/HLift:55-75cmMaterial:monocrystalline siliconSize of the solar panel:160mmApplication scenario:outdoor, courtyardFeatures– This pump can be connected to a variety of different shapes of nozzles to spray different water types.-Uses high-efficiency solar panels and the new brushless water pump, which has the advantages of fast start-up, high efficiency and strong stability.-Can work as …
6V 180L/H Solar Power Floating Fountain Garden Landscape Water Pump 55-75cm LiftingRead More
Reviews
There are no reviews yet.