Week 3 - Transistors

Reading

- Read chapter 2 of Simon Penny's Making sense

- Read chapter 2 of The Design of Everyday Things by Donald Norman

Lab 01 - PWM

Today we’re going to use PWM to fade an LED. Go here and build this circuit. Try typing the code yourself: https://www.arduino.cc/en/Tutorial/Fade Take a short video to submit of the working circuit, or put a link to your tinkercad project you’ve made public on your blog.

My tinkercard for fade：

Lab 02 - Voltage Dividers

Hook up the circuit in the slides with the light dependent resistor.

Practice from Arduino Project Book lab04

My experiment：

My coding

Lab 03 - Dark detecting Circuit

Making a dark detecting LED (From Circuit diagram to breadboard) Build this project to better understand transistors https://makezine.com/projects/dark-detecting-led/ There is one change though, verses use a battery, we're just going to power our circuit with the Arduino 3V out.

[Here's the datasheet for the phototransistor] (https://www.avnet.com/shop/emea/products/everlight/pt333-3c-3074457345634369228?&r=EMEA&CMP=AVNET-EMEA-PPC-Google-All-English-AVE14-SKU-1699305114-66248026957-042019)

Note in Tinkercad the phototransistor here is called an Ambient Light Sensor [Phototransistor]

My tinkercard for dark detecting circuit

Lab 03b - Touch Sensor (KIT ONLY)

Using the circuit in the slides, make the touch sensor. Take a short video to submit of the working circuit and put it on your blog.

Circuit:

My experiment：

My coding

Lab 04 - Feedback systems

System which feedback on themselves often feel more alive to us than static systems which only output data. Design a system, based on what we have learned so far, which feedbacks on itself. How could interaction work within a system which is continually feeding back on itself?

On tinkercard

Test the distance.