Product DescriptionDescription: Working voltage: DC 9-12VSuite includes a full set of component package, PCB circuit boards.Instruction content: including the working principle of the circuit principle diagram, assembly drawing, analysis, and basic component identification and the installation method and so on. Package Included:3 x L..

Product DescriptionFeatures:Using two imported 7805 three-terminal voltage regulator chips, the error of output voltage is small, generally in the range of 4.95V-5.05V, the maximum output current is 3A, the module input voltage is 7V-35V, and the AC is 5V-24V.The smaller the voltage difference between input and output, the larger the current that c..

Product DescriptionDescription: Circuit functions: With the sound of music or other sounds, LED lights follow the rhythm of the sound (the speed of the sound) and flicker. After successful welding, you can feel the wonderful combination of sound and light.Working voltage: 3-4.5V ( if you need a higher working voltage, please add a current limi..

Product DescriptionDescription: Three-person voting device, designed with 74HC00 + 74HC10, three judges each control one of the three buttons S1, S2, S3, with the principle of minority subordinate to the majority of voting events, press agree, otherwise disagree. If the vote is passed, the LED will light up, otherwise it will not light up.Circ..

Product DescriptionOverviews: This is a 9-port USB hub to solves the problem of insufficient USB port on the Raspberry Pi, and can be well assembled with the Raspberry Pi. At the same time, it provides two ways to power the Raspberry Pi. Features: 9-port USB 2.0 High Speed hub for Raspberry PiAdopts Multiple Transaction Translator (M..

Product DescriptionDescription: Work effect: clap hands, LED light, and then clap out, so cycle, high sensitivity, about 4 meters clap hands can be controlledCircuit description: this circuit is mainly composed of audio amplification circuit and bistable trigger circuit. Q1 and Q2 constitute a two-stage audio amplifier circuit. The audio signa..

Product DescriptionFeatures: Useful communication board supporting the RS232 serial protocolControl the Raspberry Pi over RS232 or connect to external serial accessoriesConnected to the UART port on the Raspberry Pi using a MAX3232 interfaceAllowing communication with RS232 compatible devices over a DB9 serial cable or with the use of a null-m..

Product DescriptionFeatures:The appearance is compact and the shape is novel.It has high sensitivity, low noise and strong anti-interference ability.Support for global frequency band (76-108MHZ).Built in rechargeable lithium battery and charging circuit, charger can be charged with mobile phone charger.With working indicator (blue), charging indica..

Product DescriptionDescription: This is a kit parts. You should solder it by yourself.Transmitting audio signals through infrared signals.Instructions: Step 1: Complete the installation in the normal way following installation manual and schematic.(Please request separately).Step 2: Connect 2W 8ohm speaker(It does not include in package!)..

Product DescriptionIntroduction: By pressing the key to change the different inputs of the NE555 oscillation resistor, NE555 generates different signal frequencies and drives the buzzer to make different sounds through the capacitor coupling.The kit can generate 16 notes by key combination. Feature: Operating voltage: DC4-12VStandby ..

Product DescriptionDescription: The board is made of high quality FR4-A glass fiber board. Before leaving the factory, each piece of PCB board has been tested by flying needle.It is completely new and original, and the quality is worth relying on.Module size: 3.4cm x 5.2cmSupply voltage: 5VVCC: power supply positive electrodeGND: power supply ..

Product DescriptionFeatures:Great DIY calculator counter kit for electronic enthusiasts, easy to install.A great DIY toy for electronics enthusiast and DIY enthusiast.Blue LCD display with auto power off function in 30 seconds.  Specially designed to calculate all kinds of math calculation and use for electronics researcher.2 CR2030 butto..

Product DescriptionFeature: Solar charger regulator dedicated USB DIY junction boxEnergy saving, high conversion efficiencySuitable for electronic production, solar charger regulator Specifications: Product name: Plastic CaseMaterial: PlasticColor: BlackSize: Approx. 4×3.3x1cm/1.57"x1.29"x0.39"Output voltage: 5VIn..

Product DescriptionFeature:Working voltage: DC6V ~ 12VRecommend voltage: DC 9VRecommend battery: CR2032 (3V)Working current: 35mAStandby current: 1.2mANote:It is kits only. That is to say, all items are not soldered on the PCD board, buyers have to sold them on the pcb board by themselves. We gurantee all items on the following listing included.Onl..

Product DescriptionFeature: Solar charger regulator dedicated USB DIY junction boxEnergy saving, high conversion efficiencySuitable for electronic production, solar charger regulator Specifications: Product name: Plastic CaseMaterial: PlasticColor: BlackSize: Approx. 4×3.3x1cm/1.57"x1.29"x0.39"Output voltage: 5VIn..