Click here for a free subscription to "HDE" our site newsletter.
Email:

Led Display At Home DIY Electronics

LED Bar Graph With Transistors

LED bargraph thumbnail

How to build an LED bargraph display using transistor drivers where the number of LEDs illuminated is determined by the input voltage to the circuit. This circuit can be used to indicate temperature or water level or anything that can be converted to a voltage level.

There are a number of integrated circuits and modules available that are designed specifically for led bar graphs but if your junk box looks like mine then you probably don't have one. What if you want to build a bar graph today and don't have the right chip? I always have a small stock of transistors, diodes and resistors to hand just like most other hobbyists. So if I can build something out of these basic components then I can get the circuit working in an hour or two. Why don't you give this one a try. More...

1 of 1

Amplifier    Analogue Indicator    Arduino    Arduino Distance Sensor    Arduino Motion Detector    Arduino Pro Mini    Arduino Project    Arduino Sketch    Arduino Software    Arduino Tachometer    Arduino Timer    Arduino Uno    Astable Multivibrators    Bar Graph    Basic Electronics    Beaglebone    Breadboards    Construction Kits    Cutters    Darlington Pair    Delay    Diy Electronics    Diy Oscilloscope    Dremel    Dremel 3000    Educational Toys    Electronic Breadboards    Electronic Engineering    Electronic Projects    Electronics Course    Electronics Project    Engineering For Kids    Essential Tools    Frequency Analyzer    Ftdi    HC SR04    Helping Hands    Impedance    Interrupts    Isp    Laptop Maintenance    Led    Led Display    Led Projects    Level Converter    Magnifier Lamp    Microcomputer    Multitool    Multivibrators    Oscilloscope Software    Oscilloscopes    Pc Based Oscilloscope    Pc Oscilloscope    Pliers    Power Dissipation    Power Fail Protection    Power Supply    Poweroff    Programmer    Range Finder    Raspberry Pi    Raspbian    Reader Projects    Resistors    Reviews    Rs232    Safety Projects    Science Projects    Screwdrivers    Serial Converter    Servo Motor    Signal Generator    Simple Electronic Projects    Simple Electronics Projects    Snap Circuits    Soldering Irons    Soldering Station    Solderless Breadboards    Solderless Circuit Board    Sony Vaio    Sound Card Oscilloscope    Sound Card Oscilloscopes    Strobe    Tachometer    Test Equipment    Tool Kits    Tools    Touch Switch    Transistor Amplifier    Transistor Circuits    Ultrasonic Distance Measurement    Ultrasonic Motion Detector    Uninterruptable Power Supply    Voltage Multiplier    Voltmeter   


Now subscribe to our newsletter and don't miss a thing
 

Click here for a free subscription to "HDE" our site newsletter.