Programming ATtiny13 with Arduino Uno © GPL3+

Tested with Arduino 1.8.0 on Ubuntu 17.10.

0. Turn the Arduino into a AVRISP

(AVR is a family of microcontrollers. ISP means In System Programmer)

Open Arduino IDE -> File -> Examples -> 11.ArduinoISP ->ArduinoISP and upload to Arduino

1. Install hardware package for ATtiny13

1.1 Open Arduino IDE -> File -> Preferences go to Additional Boards Manager URLs and copy this:

https://mcudude.github.io/MicroCore/package_MCUdude_MicroCore_index.json

Ok.

1.2 Open Arduino IDE -> Tools -> Board -> Boards manager. Find MicroCore and click Install.

2. Connect the hardware

• ATtiny13A leg 1 -> Arduino 10
• ATtiny13A leg 5 -> Arduino 11
• ATtiny13A leg 6 -> Arduino 12
• ATtiny13A leg 7 -> Arduino 13
• ATtiny13A leg 8 -> 5v
• ATtiny13A leg 4 -> Ground (GND)

LED and resistor is needed only for testing to see does uploaded example code works or not.

3. Arduino IDE settings

Go to Arduino IDE -> Tools and select:

• Board: ATtiny 13
• BOD: 4.3v
• Clock: 1.2 MHz internal osc.
• Compiler LTO: Enable
• Port: (Your Arduino port)
• Programmer: Arduino as ISP

4. Burn Bootloader

(You only need to do this once per chip)

Go to Arduino IDE -> Tools -> Burn Bootloader

You might see an error, but ignore it.

5. Upload sketch

Copy Blink sketch:

void setup() {
 // initialize pin 4 (ATtiny leg 3) as an output.
 pinMode(4, OUTPUT);
}
void loop() {
 digitalWrite(4, HIGH);   // turn the LED on (HIGH is the voltage level)
 delay(1000);             // wait for a second
 digitalWrite(4, LOW);    // turn the LED off by making the voltage LOW
 delay(1000);             // wait for a second
} 

Go to: Arduino IDE -> Sketch -> Upload Using Programmer

6. Demo

If all works, the LED should blink now:

7. More info

• https://github.com/MCUdude/MicroCore
• Łukasz Podkalicki blog: http://blog.podkalicki.com/100-projects-on-attiny13/