How to make arduino attiny programmer shield
Arduino shields are additional functional boards which can be quickly plugged on top of Arduino boards. An ATtiny programming shield is used to upload the Arduino programs to an ATtiny chip, using an Arduino board as an ISP programmer.
ATtiny programming Shield circuit for ATtiny25/V / ATtiny45/V / ATtiny85/V
Pin connection between Arduino and ATtiny
| Pin name | Arduino Uno pin number | ATtiny pin number |
| SLAVE RESET | 10 | 1 |
| MOSI | 11 | 5 |
| MISO | 12 | 6 |
| SCK | 13 | 7 |
Pins 8 Vcc and 4 GND are connected to the 5V and GND on the Arduino board. A 10uF Electrolytic Capacitor is connected between the Reset and Ground of the Arduino.
To indicate the programmer status, additional LEDs can be added to the Arduino pins listed below.
Arduino Pin 9: Heartbeat – shows the programmer is running
Arduino Pin 8: Error – Lights up if something goes wrong
Arduino Pin 7: Programming – In communication with the slave
Connect LEDs with a resistor to Arduino pins.
LED pin configurations are as per ISP sketch” ArduinoISP version 04m3″.
Nice solution.