Introduction: Turn Your Arduino Into an ISP
Learn how to turn your Arduino into an AVR In System Programmer. This will allow you to burn bootloaders onto new chips or program AVRs without a bootloader.
Step 1: Materials
To begin you will need:
* Arduino (I will be using the Uno)
* AVR Microcontroller (This tutorial will cover the ATtiny85 & ATmega644)
* Arduino IDE
* Breadboard
* Jumpers
Step 2: Setup
Before we begin programming chips we must set up the Arduino. First, make sure your Arduino IDE is up to date. Then select the File >> Examples >> ArduinoISP sketch and upload it to your Arduino. Now your Arduino is now an AVR ISP.
Attachments
Step 3: Using Your Arduino ISP: Programming AVRs Without Bootloaders
There are a few instances in which it is neccesary to program microcontrollers without a bootloader. For example, if have run out of storage on a chip you can get an additional 2KB when you program without a bootloader. Another example, the one I will show you how to do, is to program chips that have no serial capabilities and therefore cannot use a bootloader. The ATtiny85 is one of these chips.
To program the ATtiny85 using the Arduino ISP you must first add ATtiny85 support to the Arduino environment:
* Download attiny45_85.zip
* Unzip the folder
* Copy the folder to the Arduino IDE's Hardware folder
* Reopen the Arduino IDE, you should see the ATtiny85 in the Tools >> Board menu
Now connect your Arduino ISP to the ATtiny85 like the diagram below.
Open the Blink sketch, change every '13' to '0', select ATtiny85 from the Tools >> Board menu, and select the serial port that is your Arduino ISP. Now click on upload and your ATtiny will begin blinking the LED once it's done.
Step 4: Using Your Arduino ISP: Burning Bootloaders
What if you want to program your chip over USB without an ISP? Well then you can use a bootloader. The process of programming a bootloader onto a chip is called burning a bootloader. Let's look how you burn a bootloader onto an ATmega644 using your Arduino ISP.
To burn the bootloader to the ATmega644 you must first add ATmega644 support to the Arduino environment:
* Download the Sanguino hardware file
* Unzip the folder
* Copy the folder to the Arduino IDE's Hardware folder
* Open Hardware >> Sanguino >> boards.txt
* Change:
* 'sanguino.bootloader.file=ATmegaBOOT_644P.hex' to 'sanguino.bootloader.file=ATmegaBOOT_644.hex'
* 'sanguino.build.mcu=atmega644p' to 'sanguino.build.mcu=atmega644'
* Reopen the Arduino IDE, you should see Sanguino in the Tools >> Board menu
Now connect your Arduino ISP to the ATmega644 like the diagram below.
Select Sanguino from the Tools >> Board menu, and select the serial port that is your Arduino ISP. Now click on Tools >> Burn Bootloader >> w/ Arduino as ISP. If there is more than one 'w/ Arduino as ISP' just try each one until it works.
Step 5: Congratulations!
You now have am Arduino ISP and know how to use it!

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47 Comments
Question 2 years ago on Step 2
l.S.
When I uplaod the Arduino ISP, I get a Fault.
It sais: At the line #define SERIALSerial; Serial is not declared in this scope.
What do I do?
6 years ago
Hi ,
Can u please tell ne how to burn bootloader into atmega32. Can u give me the link of the files needed ..
Ie. Bootloader
Burning software
12 years ago on Introduction
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Reply 7 years ago
What!?
11 years ago on Introduction
is this means that i can program my AVR micro controller with the simple arduino code in C ?
Reply 7 years ago
Yup
11 years ago on Step 3
So do i understand correctly yu do not have to load the ArduinoISP sketch? The Arduino programs the Attiny with the sketch that is uploaded to the Arduino? Is taht correct?
Reply 7 years ago
Yes
11 years ago on Introduction
I want to use it for Controlling Home appliances through Bluetooth Mobile and please can any one send me complete code for this microcontroller and which tool will be used to assemble and depoly the code
Reply 7 years ago
Use an internet portal instead, and just buy a pre made arduino mega.
7 years ago on Introduction
There is also another good tutorial titled:
"Arduino Uno R3 as a true ISP programmer for any Attiny and Atmega AVR"
see:
8 years ago on Introduction
8 years ago on Introduction
8 years ago on Introduction
9 years ago on Introduction
What software do you use to make the diagrams?
Reply 9 years ago on Introduction
He's using Fritzing (available here)
11 years ago on Introduction
I do not have an arduino board but, have breadboarded a 328 chip. I can burn bootloader to the 328 chip but can not get the ArduinoISP sketch to load to the 328. I do get an error msg... avrdude: stk500_getsync(): not in sync: resp-0x00 . I also have some programs I want to DL to the ATTiny85 but, can not until this problem is solved. Can you help me?
Reply 10 years ago on Introduction
by ISP do you mean 'Internet Service Provider'?
Reply 9 years ago on Introduction
No, in this context ISP stands for 'In System Programmer'. Iow, it's a device which enables you to programme your AVR chip in situ, without having to remove it from the circuit. ISP programming is a fairly recent innovation in microcontroller programming.
Reply 10 years ago on Introduction
Hi.
I had the exact same problem when I was using Arduino as an ISP.
What I found is that arduino is trying to write data too fast.
You can fix it by selecting "Arduino NG or older" from the boards menu and "Arduino ISP" as a programmer. This will force ISP to write data at 19,2kbps instead of 57,6kbps. Hope it helps.