testing and experimenting with electronic circuits Breadboards testing and experimenting with electronic circuits Prototype circuits, test components and do not require any soldering

A Bread Board Way easier than doing this. Before the 70’s, electronic enthusiasts used breadboards to do this - Circuits were often constructed by wire-wrapping components onto nails driven into flat pieces of wood like breadboards.

A Bread Board

a temporary circuit board for testing and prototyping circuits. What is a breadboard? a temporary circuit board for testing and prototyping circuits. A plastic box full of metal strips, with a grid of holes on top

Inside a Breadboard Bus strips: are used primarily for power supply connections Terminals: will build your circuits on the terminal strips by inserting the leads of circuit Trench: often referred to as ICs or, simply, chips, are manufactured specifically to fit onto breadboards.

Powering a Breadboard

Powering a Breadboard Connecting the Ground (GND) pin from an Arduino to a row on a mini breadboard. Now any leg or wire connected to that row will also be connected to Ground.

Powering a Breadboard Connecting the Ground (GND) pin from an Arduino to a row on a mini breadboard. Now any leg or wire connected to that row will also be connected to Ground.

Wiring a Breadboard

Rats nest wiring techniques insure breadboarding failure! Wiring a Breadboard Rats nest wiring techniques insure breadboarding failure!

Wiring a Breadboard Always stand your components "Straight Up" if possible. "Always" lay your Jumpers "FLAT" to the Breadboard. Cut wires to the length. For large circuits, make temporary labels with masking tape for each connection. If it’s a large circuit, you can label your wires with masking tape for each connection.

Calculating the resistance Resistors Calculating the resistance

Identify the reading direction Step 1: Identify the reading direction Silver or gold band always the last band

Step 2: Refer to color coded chart Identify First significant number Second significant number Multiplier Make up a mnemonic to remember this

Write down the first and second significant numbers. (56) Step 3: Write down the first and second significant numbers. (56) Multiply this number with the multiplier (100) 56*100=5600Ohms or 5.6kohms Place the first and the second numbers beside each other and multiply by 100

The percentage by which the resistance varies from the stated value Tolerance Band The percentage by which the resistance varies from the stated value 5% of 5.6kohms 280 5320 or 5880 Ohms percentage of error that the reistor has

Find the Resistance! (activity)