Electronic Education Kits Introduction to Electronics and Breadboarding Circuits This project is sponsored by INSGC. 1. Add photos of the circuits 2. Show more clearly how energy flows through breadboard 3. Explain connectivity and wires 4. Show the wiring of the breadboards 5. Parts, and wires need to share the same row 6. Explain the LED before wiring, do an LED to battery. Maybe, burn it out to show the problem of no resistor. 7. Explanation of polarity in regards to troubleshooting and debugging. 8. Show in diagrams the part in holes more clearly.

What we're going to learn today: What is an electronic circuit? What kind of power is needed for these projects? What are the fundamental principles of electronics? What are the basic electronic components used in DC analog circuits? How do these principles combine to make interesting things?   We're going to make some of those things.

About parts Symmetric vs Asymmetric Polarized Physics and chemistry in a tiny package Explain Data Sheets

What is electricity? What kinds are there? What can it do? What are the dangers?

Battery as a power source A battery converts chemical energy into electrical energy. Some batteries are rechargeable and can do the reverse as well.

Batteries as a power source

Power source Can you name other power sources?

What is a circuit? Combination of electronic parts, wires connected between power sources. It's like a physical program. It's also like setting up dominoes in sequence. A circuit is a closed-loop. Show example of LED circuit with only wires.

What is a breadboard? What are they good for? Creatings, organizing, and prototyping a circuit. Literally started out as a bread board with nails. Find a interactive example. Also, show an old fashioned breadboard example.

Electronic Parts Polarized vs non-polarized Physics and chemistry in a tiny package Data sheets On-line tutorials from sparkfun at https://learn.sparkfun.com/tutorials/tags/c oncepts

What are LEDs? Light Emitting Diodes Diode Symbol + Arrows for light Points to ground Explain Anode, and Cathode.

Hello World for a Circuit Light and LED Parts: Battery Resistor LED Why: Power Source An LED will light up when enough voltage is supplied but can also burn out if too much is allowed to pass through. The resistor will limit the voltage to prevent damage. Do: Connect Battery, Resistor, LED

LED Circuit 1 LED Plus resistor Why have a resistor? Current, limiting.

Series circuit example

Parallel Circuit example

Fundamental Parts Resistor Capacitor Wire Diodes Light Emitting Diodes (LED) Battery Transistors Motors They each have a physical property that interacts with electricity. When put in combination various actions occur.

What are resistors? Resistors provide a specific amount of resistance to a path in a circuit or wire. Ohm's law is used to calculate the properties related to resistance. Ohm's Law: I = V/R I = Current measured in Amps V = Voltage measured in Volts R = Resistance measured in Ohms Resistors are color coded.

Resistor Color Code Resistor Color Code Wheel Calculator

Find out the resistor value: Assuming that from the datasheet, the max current of the LED is 25mA, and the forward voltage is 2.0V. For max current 25mA, R = (9-2)/25mA = 280 ohm Let’s pick R=330 ohm, I = (9-2)/330 = 21.1mA

Variable Resistor - Potentiometer The variable resistor is simply a control and this is required in many electric circuits. The variable resistor can be used as a light dimmer, volume control, and in many other circuits when you are wanting to change resistance easily and quickly.

RGB LED Try resistors out in various combination to make different colors. Experiment by adding potentiometers to the leads.

LED and Photoresistor Photoresistors change their resistance by the amount of light detected.

Switch You know what a switch is you use switches every day. When you slide (or flip) to the proper position, the circuit will be completed, allowing current to ow through. In the other position a break is made, causing the circuit to be off. The switch that we will be using is a double-pole, double throw switch.

Seven-Segment LED Display 1. Add photos of the circuits 2. Show more clearly how energy flows through breadboard 3. Explain connectivity and wires 4. Show the wiring of the breadboards 5. Parts, and wires need to share the same row 6. Explain the LED before wiring, do an LED to battery. Maybe, burn it out to show the problem of no resistor. 7. Explanation of polarity in regards to troubleshooting and debugging. 8. Show in diagrams the part in holes more clearly.

Seven-Segment LED 7-segment digit display 10-pin package There is one LED inside for each segment One LED is for decimal point (DP)

Seven-Segment LED – Common Anode All anodes of seven LEDs are connected together.

Seven-Segment LED – Common Cathode All cathodes of seven LEDs are connected together.

Seven-Segment LED – How it works By controlling the on/off of 7 LEDs, the 7-segment LED can display the digits of 0 – 9.

How to Read Datasheet Brief description

Dimension and Pin Layout

Absolute Max Ratings

Electronic Characteristic

7-Segment Connections With R=330 ohm, I = (9-2)/330 = 21.2mA What digit are we displaying?

Project 04: Month/Date of today using 7-segment LEDs Parts provided: 7-segment common-cathode LED x 4 9V battery and battery holder x1 330 ohms resistor x many Breadboard Please build a circuit to display the month/date of today. First draw a schematic Build and test your circuit