20pcs ka2284 led

Buy 20Pcs KA2284 LED Level Indicator Module Audio Level Indicator Kit Electronic Pr for R540.47

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

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Note: This is a DIY kit, you need to assembly it, supply schematic diagram only. Feature: Constant current output Wide operating voltage: 3.5V - 12V ALC circuits do not need to connect diodes or transistors The brightness level can be adjusted The circuit board adopts military grade 1.6MM FR4 sheet PCB dimensions: 40mm x 19mm Package includes: 1 x PCB board 2 x XH2.54-2P curved seat 2 x XH2.54-2P line 1 x 100 ohm resistance 1 x 10K resistance 1 x 2.2UF electrolytic capacitor 1 x 10UF electrolytic capacitor 1 x 103 blue and white potentiometer 1 x KA2284 chip 5 x 5MM green to green LED 1 x 5MM red to red LED

20Pcs NE555 Pulse Frequency Duty Cycle Adjustable Module Square Wave Signal Generator Features: 1. As a square wave signal generator,generates a square wave signal used for experimental development. 2. Used to drive a stepper motor for generating a square wave drive signal. 3. Generate adjustable pulse for MCU. 4. Generate adjustable pulse,to control circuitry associated. 5. Size: 31mm x 22mm 6. Main chip: NE555 7. Input Voltage: 5V-15V DC. When power supply is 5 V, the output current can be 15 MA around; when 12V power supply, the output current can 35 MA around 8. Input current: >=100 MA 9. Output amplitude: 4.2V V-PP to 11.4V V-PP. (Different input voltage, the output amplitude will be different) 10. Maximum output current: >=15MA (5V power supply, V-PP greater than 50%), >=35MA (12V power supply, V-PP greater than 50%) 11. Output with LED indication(low level,LED will on; high level,LED will off;low frequency, the LED flashes) 12. The output frequency range is selectable: LF file: 1Hz ~ 50Hz                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                        &nbs

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

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Buy 20pcs 3.3V 5V 8 Bit Blue Common Cathode LED Indicator Display Module DIY Kit for R458.00