Building Consecutive Flashing LED Circuits

It's relatively simple to create a row of LEDs expensive in sequence using simple digital electronics. You shouldn't be scared through the word "digital": this project does not require any programming, just a set of common logic chips that cost pennies. You will employ a nick known as an "inverter" to produce a simple oscillator, and employ the oscillator they are driving a nick known as a "counter" which will light the LEDs successively. Just like anything in electronics, you will find different ways to do this, but this can be a quite simple solution that utilizes no less than parts.|NON-Waterproof LED Module

        1

        Place both ICs in to the breadboard. A breadboard is really a gadget that causes it to be simple to build prototype circuits. It is a power grid of pinholes on the copper base. All of the pinholes in each column are connected electric, and also the posts are isolated from one another. Each and every finish from the breadboard you will find two rows of pinholes which are outside of the posts. Common practice is by using among the rows for that positive supply current, and also the other row for ground. This way, everything that must connect with energy or ground can you need to be attached to the appropriate row. A line lower the middle of the breadboard divides it into two sections. Connect the ICs towards the breadboard by fitting the middle type of each IC within the center type of the breadboard. Being careful to not bend any hooks, push the chips firmly in to the breadboard to ensure that the hooks squeeze into the pinholes. By doing this, each pin on each nick features its own column of pinholes.

        2

        Connect the provision current and ground hooks around the inverter nick towards the energy supply and ground rows around the breadboard, correspondingly. Consult the inverter's data sheet because of its pin diagram. The diagram will highlight which hooks are for energy and ground, and which hooks would be the input and output for every inverter section.|Super Flux LED Module

        3

        Turn among the inverter sections into an oscillator by hooking up the input to ground via a capacitor after which hooking up the output towards the input via a resistor. The inverter IC really includes several inverters, each using its own input and output pin. An inverter requires a digital input and flicks it: when the input is low, the output is high, and the other way around. The resistor and capacitor interact to help keep the inverter flipping backwards and forwards, creating an oscillator. Connect an element to some pin around the IC by inserting among the component's leads right into a pinhole around the breadboard on a single column because the pin.

        4

        Make the right energy and ground connections for that counter nick. Again, consult the information sheet for that pin diagram and outline.

        5

        Connect the output in the inverter oscillator towards the input from the counter.

        6

        Connect each creation of the counter towards the anode of the LED. Once the counter fires a pulse from an output, the LED attached to that output will illuminate.

        7

        Calculate the resistor value you'll need for the LEDs using Ohm's law. Try looking in your LED's data sheet because of its forward current and current. Take away the LED's forward current in the circuit supply current to find the current drop over the resistor. If you are utilizing a nine volt battery, the provision current is nine volts. Divide that through the LED current (in amplifiers, not milliamps) to find the minimum resistor value in ohms. Resistors are available in standard values, so make use of the next greatest value available for you. Without having the LED's documentation available, 2 Volts and .02 Amplifiers (20 mA) is a great guideline. If you are uncertain, any resistor between about 400 and 1000 ohms should have the desired effect. Using lower values can make the LEDs glow more vibrantly, but when the resistance is not high enough the LEDs will burn up.

        8

        Connect the cathode of every LED to ground via a resistor using the value you calculated in the earlier step.|SMD5050 RGB 3 LEDs waterproof module

        9

        Connect battery clip towards the breadboard. Battery clip must have two wires adhering from it, red-colored and black. Red-colored is positive current and black is ground. Connect the red-colored wire towards the row around the breadboard you need to use for that supply current, and fasten the black wire towards the row you're using for ground. Plug battery in to the clip, watching the LEDs blink.