ATtiny85-20PU IC Circuit

Description

Tutorial: How to Use ATtiny85-20PU IC Integrated Circuits

The ATtiny85-20PU is a small, low-power microcontroller ideal for Arduino projects and electronic prototypes. It is suitable for both beginners and experts looking for an economical solution.

What you need

• Arduino Uno or Compatible
• USB A-MicroB Cable
• Arduino IDE Software

Steps

1. Install the Arduino IDE if it is not already installed.
2. Open the menu ‘Tools > Boards > AttinyCore’
3. Select ‘Attiny > ATtiny85 1MHz (internal oscillator, reset enabled)’
4. Upload the ‘ArduinoISP’ sketch to Arduino Uno or compatible
5. Connect the pins of the ATtiny85 microcontroller to the breadboard following the connection diagram
6. Insert the chip programming instructions in the ‘Tools > Board Options’ menu
7. Select the sketch to upload and send it to the ATtiny85 via Arduino Uno as programmer

Example code

void setup() { Serial.begin(9600); } void loop() { Serial.println("Hello, World!"); delay(1000); }

Mini project

Create a small digital clock that displays the hour and minute on two 7-segment LEDs. Use the ATtiny85 to manage the timing counters.

Common mistakes

• Physical connection error between Arduino Uno and ATtiny85
• Incorrect frequency settings during chip fusion
• Wrong serial port selection during chip fusion

Recommended accessories

• Breadboard
• Variable resistors
• 7-segment LEDs
• Miniature relay

Frequently asked questions

How can I verify if my ATtiny85 has been loaded correctly?
Check the connection and retry the ‘ArduinoISP’ sketch. Also, check the fusion settings in the ‘Tools > Board Options’ menu.

What additional components are needed to create a project with the ATtiny85?
For small projects, you will need a breadboard, resistors, and LEDs. For more advanced features, you might need sensors or relays.