Additional information and document update here on my site: ATtyny Article.

ATtiny programmer board (ArduinoUNO as ISP)

ATtiny13/ATtiny13a/ATtiny25/ATtiny45/ATtiny85

I really like the ATtiny, and for programmaer It, so I build a simple board to use ArduinoUNO as ISP in a faster way.

For Original ArduinoUNO there is a little variant because compatible one have another 5v VCC over RESET pin,
Arduino uno have IOREF instead.

(In project you can find fritzing file, the simple examples and schema).

ATtiny13a variant

I buy ATtiny13a very low cost IC (less than 0.5€), with 4 analog pin and 2 PWM/TIMER PIN.

How to program an ATtiny:

Prepare ArduinoUNO to use it as ISP

1. In Arduino IDE select ArduinoUNO board (Tool --> Board --> ArduinoUNO - Strumenti --> Scheda --> ArduinoUNO);
2. Than open ArduinoISP example file (File --> Examples/Esempi --> 11.ArduinoISP --> ArduinoISP);
3. Upload Arduino (Sketch --> Upload/Carica);
4. Close IDE.

Add support for ATtiny:

ATtiny13/ATtiny13a (GitHub ATtiny13 support):

1. Open the Arduino IDE;
2. Open the File > Preferences menu item;
3. Enter the following URL in Additional Boards Manager URLs: https://mcudude.github.io/MicroCore/package_MCUdude_MicroCore_index.json ;
4. Open the Tools > Board > Boards Manager... menu item;
5. Wait for the platform indexes to finish downloading;
6. Scroll down until you see the MicroCore entry and click on it;
7. Click Install;
8. After installation is complete close the Boards Manager window.

ATtiny25/ATtiny45/ATtiny85 (GitHub other ATtiny support)

1. Open the Arduino IDE;
2. Open the File > Preferences menu item;
3. Enter the following URL in Additional Boards Manager URLs: https://raw.githubusercontent.com/damellis/attiny/ide-1.6.x-boards-manager/package_damellis_attiny_index.json ;
4. Open the Tools > Board > Boards Manager... menu item;
5. Wait for the platform indexes to finish downloading;
6. Scroll down until you see the MicroCore entry and click on it;
7. Click Install;
8. After installation is complete close the Boards Manager window.

Upload to ATtiny

1. Attach board to ArduinoUNO;
2. Insert ATtinyXX;
3. If the board is v03 than activate test led otherwise using a breadboard and take VCC from upper right pin of attiny and GND to down left pin, than connect 0 pin (down right) to a led;
4. Select board with correct setting and PORT (Tools --> Board/Strumenti --> Scheda);
5. Select Arduino as ISP (Tools --> Programmer --> Arduino as ISP/Strumenti --> Programmatore --> Arduino as ISP); note: Arduino as ISP is different from ArduinoISP.
6. Upload program (Sketch --> Upload from programmer / Schetch --> Carica tramite un programmatore).

Sample sketch

#define PIN 0

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

void loop()
{
  digitalWrite(PIN, LOW);
  delay(500);
  digitalWrite(PIN, HIGH);
  delay(500);
}

Schema:

I use a prefored board, and to switch Voltage and to enable test led I use a smd on/off button instead pin with jumper.

The board is double side so I can attach pin and componend up and down the board.

Board v01:

Board v01 (Original ArduinoUNO):

Board v02 (power led):

Board v03 (test led):

Schema v03 (test led):

Material

Assembly List

Label	Part Type	Properties
Arduino UNO	Arduino Uno (Rev3)	tipo Arduino UNO (Rev3)
Capacitor to prevent reset	Electrolytic Capacitor	capacitance 10µF
Capacitor to stabilize	Ceramic Capacitor	capacitance 100 nF
IC Holder	ICHold	pin spacing 300mil; pins 8
Power led	Green (570nm) LED	package 3 mm [THT]; colore Green (570nm); leg yes
Test led	Yellow (595nm) LED	package 3 mm [THT]; colore Yellow (595nm); leg yes
Left arduino pin (from VIN)	Generic male header - 8 pins	package THT; form ♂ (male); hole size 1.0mm,0.508mm; pin spacing 0.1in (2.54mm); pins 8; row single
Left IC pin	Generic female header - 4 pins	package THT; form ♀ (female); hole size 1.0mm,0.508mm; pin spacing 0.1in (2.54mm); pins 4; row single
PullUp reset resistor	10kΩ Resistor	package 2512 [SMD]; resistenza 10kΩ; tolerance ±5%
R1	220Ω Resistor	bands 4; package THT; resistenza 220Ω; pin spacing 400 mil; tolerance ±5%
R2	220Ω Resistor	bands 4; package THT; resistenza 220Ω; pin spacing 400 mil; tolerance ±5%
Right arduino pin (7)	Generic male header - 1 pins	package THT; form ♂ (male); hole size 1.0mm,0.508mm; pin spacing 0.1in (2.54mm); pins 1; row single
Right arduino pin (from 8)	Generic male header - 6 pins	package THT; form ♂ (male); hole size 1.0mm,0.508mm; pin spacing 0.1in (2.54mm); pins 6; row single
Right IC pin	Generic female header - 4 pins	package THT; form ♀ (female); hole size 1.0mm,0.508mm; pin spacing 0.1in (2.54mm); pins 4; row single
Jumper voltage setting	Generic male header - 3 pins	package THT; form ♂ (male); hole size 1.0mm,0.508mm; pin spacing 0.1in (2.54mm); pins 3; row single
Enable test led on PIN0	Generic male header - 3 pins	package THT; form ♂ (male); hole size 1.0mm,0.508mm; pin spacing 0.1in (2.54mm); pins 3; row single

Shopping List

Amount	Part Type	Properties
1	Arduino Uno (Rev3)	tipo Arduino UNO (Rev3)
1	Electrolytic Capacitor	capacitance 10µF
1	Ceramic Capacitor	capacitance 100 nF
1	IC Holder	pin spacing 300mil; pins 8
1	Green (570nm) LED	package 3 mm [THT]; colore Green (570nm); leg yes
1	Yellow (595nm) LED	package 3 mm [THT]; colore Yellow (595nm); leg yes
1	10kΩ Resistor	package 2512 [SMD]; resistenza 10kΩ; tolerance ±5%
2	220Ω Resistor	bands 4; package THT; resistenza 220Ω; pin spacing 400 mil; tolerance ±5%
	Generic male header	package THT; form ♂ (male); hole size 1.0mm,0.508mm; pin spacing 0.1in (2.54mm); pins 8; row single
	Generic female header	package THT; form ♀ (female); hole size 1.0mm,0.508mm; pin spacing 0.1in (2.54mm); pins 4; row single

ATtiny13a I used this for test

Screen

Preforated board up:

Preforated board down:

Mount on Arduino:

After upload: