Essmart Hackathon

Peter Burkimsher and Sreechand Tavva

What to expect

• A basic introduction to electricity• How to read a circuit diagram• Common electrical components• Series and parallel circuits• What not to do• Advice for best practice• Build your own multi-brightness LED!

Electricity - 1

V+ GND

Electricity - 2

V+ GND

Electricity - 3

V+ GND

Voltage - 1

5 V

V+ GND

Voltage - 2

2.5 V

V+ GND

Voltage - 3

0 V

V+ GND

Current - 1

0.001 AV+ GND

Current - 2

1 mAV+ GND

Current - 3

500 mAV+ GND

Shorting out

500 mA

5 V

V+ GND

Circuits

500 mA

5 V

V+ GND

Resistor

20 mA

5 V

V+ GND

4.7 kΩ100 Ω

Diode

5 V

V+ GND

V+ GND

Diode warning

500 mA

5 V

V+ GND

LED

5 V

V+ GND

V+ GND

Practical 1 – Series LED

Practical 2 - Switch

Switches

0 mA

5 V

V+ GND

Practical 3 – Series Resistors

Practical 4 – Parallel Resistors

Variable Resistor

5 V

V+ GND

Practical 5 – Variable Resistor

Practical 6 – Parallel switch

Thank you for your participation!

Practical 8 – Everything

• Let’s use everything we learned to build a full circuit with all the features we want!

• The switch activates maximum brightness• The variable resistor controls brightness

Practical 5 – Voltage Divider

• A voltage divider places the LED in parallel with the second resistor.

• This should be half as bright as when the LED was in series with only the 100Ω resistor.

Changeover Switch

• Changeover switches let you choose 2 inputs.• If one pipe is empty, a changeover switch is

the same as a normal on/off switch. • Our switches have 3 connectors for this. – We will leave one disconnected.

• Electronic symbol:

0 mA

5 V

V+ GND