Arduino Compatible 4 Digit 7 Segment Display Counter (0000-9999)

3132彩票网站4 digit arduino based counter is simple project using 4-digit 7 segment common cathode display, atmega328 chip on board and 2 tactile switches. projects works with 5v dc. onboard connector helps to program the arduino code and boot-loader. other details, schematic, pcb layout available here download arduino code download pdf schematic arduino pin configuration display digit1>d10,digit2>d11, digit3>d12, digit4>d13 segments a>d2, b>d3,

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Arduino 4 Digit 7 Segment Multiplexed Display Board Using ATmega328 Chip

tiny 4 digit 7 segment arduino compatible display module  to create  display related projects like, counter, timer, thermometer, games, voltmeter, current meter, light meter,  and other projects required 4 digit display,   on board connector provided to program the arduino boot-loader and arduino code using arduino ide. circuit works with 5v dc. features supply 5v dc 4 digit 7 segment

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EMI filter circuit using common mode inductors and capacitors

3132彩票网站circuit published here is a dual stage emi filter. emi filters are widely used in applications such as appliances, military systems, aerospace systems , smps, vfd drives, ac servo drives,  energy management systems, computers, factory automation equipment, industrial equipment, medical equipment, automotive battery charger. the emi circuit normally consists of passive components, including capacitors and common mode inductors, connected together

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metronome using 555 timer

a metronome is a simple circuit produces audible click sound at a regular interval. trimmer potentiometer provided to set the bpm, typically in beats per minute (bpm). musicians use the device to practice playing to a regular pulse. features supply 5v-9v dc download pdf document

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Arduino 4 channel on-off (toggle) switch

arduino based 4 channel toggle switch using 4 relays, 4 tactile switches, an arduino nano, the circuit required 12v dc, the relay can handle load up to 7amps 230v dc or 7amps/30v dc. download arduino code download pdf schematic download code>>>> github   arduino code //buttons int switch1 = a3; int switch2 = a4; int switch3 = a5; int switch4

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