// ATtiny85 Blink!

#define LED_PIN PB0

void setup() {
  pinMode(LED_PIN, OUTPUT);
}

void loop() {
  digitalWrite(LED_PIN, HIGH);
  delay(1000);
  digitalWrite(LED_PIN, LOW);
  delay(1000);
}
ATTINY8520PU
tiny:PB5
tiny:PB3
tiny:PB4
tiny:GND
tiny:PB0
tiny:PB1
tiny:PB2
tiny:VCC
r1:1
r1:2
led:A
led:C