20pcs diy voice

FAST AFFORDABLE COURIER SHIPPING TO SOUTH AFRICA Description: 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 limiting resistor on LED, usually tens of euro to 100 euro). Circuit principle: Sound-controlled LED melody lamp circuit consists of power supply circuit, microphone amplification circuit, LED luminous indicator circuit, power supply by JP input, C1 filter power supply circuit. MIC converts sound signals into electrical signals, which are coupled by C2 to Q2 amplification. The amplified signals are sent to Q1 base. Q1 drives LED to emit light. The louder the sound, the brighter the LED. Package Included: 20 x DIY Voice Controlled Melody LED Flash Kit 20pcs DIY Voice Controlled Melody Light 5MM Highlight DIY LED Flash Electronic Training Kit 20pcs DIY Voice Controlled Melody Light 5MM Highlight DIY LED Flash Electronic Training Kit 20pcs DIY Voice Controlled Melody Light 5MM Highlight DIY LED Flash Electronic Training Kit

20pcs DIY LM386 Ultra Mini Mini Power Amplifier Board Kit Low Power Consumption 3~12V Package contains 1 X item of the smallest listed variant.

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20pcs 5MM LED Flashlight Convenient Light Kit Simple LED Boost Drive DIY Electronic Kit Feature:ￂ Shell size: 55 x 35 x 15mmPCB board size: 5 x 2 x 1mmOperating voltage: 1.5V (AAA battery)Kit weight: 17 gramsNote: This is a DIY kit, you need to assemble it.ￂ ￂ Package includes:ￂ 20 x Plastic housing20 x PCB board20 x 8*8 self-locking switch20 x 7mm self-locking switch cap20 x Single wire 5CM20 x 8550 transistor20 x 8050 triode20 x 5MM Straw Hat LED20 x 330UH inductor20 x 102 ceramic capacitor20 x 510 ohm resistor20 x 20K resistance20 x Battery positive piece20 x Battery negative piece

DIY Hand-cranked Music Box with 20Pcs 15 Tone Blank Paper Tape&Hole Puncher

DIY Electronic LED Spectrum Display Training Kit Voice Control Description: Board size: long 11CM, wide 1.8CM, plate thickness 1.6MMPlease allow 2mm toleranceA: 5V Red LED Spectrum KitB: 5V Blue LED Spectrum KitC: 5V Green LED Spectrum KitD: 12V Red LED Spectrum KitE: 12V Blue LED Spectrum KitF: 12V Green LED Spectrum Kit Function introduction: 1, Through the microphone to collect the external sound, according to the sound intensity, the LED will jump.2, Keys can be set to 3 modes, after setting the mode,it will be saved when power down. A, column mode B, column floating point mode C, single floating point mode3, Precision adjustable resistance adjust sensitivity, compared to the quality of the adjustable resistance is much better.4, Input voltage 5V or 12V, 12V version is more sensitive.Package included:1 x DIY Electronic LED Spectrum Display Training Kit Voice Control