Seems a popular choice and able to program larger devices such as the Mega2560

There’s a jumper to select 3V3 or 5V – make sure you use it!!!

USBasp main page: https://www.fischl.de/usbasp/

Installing Windows Driver

On windows you need to install a driver for it.

Windows driver page: https://zadig.akeo.ie/

Its a run the exe program, no need to install.

Plug the USBasp into the PC and it will appear in the Zadig drop down of devices. Select “Install Driver”

Connections

To program the AT/ATtiny you have to connect:

  • The 3 SPI port connections: SCK, MISO, MOSI
  • The reset pin
  • VCC and GND

Programming Using USBasp & Arduino IDE

Menu > Tools > Board: Whatever you are using,. e.g. Mega2560
Menu > Tools > Processor: Select the processor you are using
Menu > Tools > Programmer: USBasp

First time programming

Use “Burn Bootloader” to burn the device config fuses (even if you won’t use the bootloader afterwards and will overwrite it by programming using the programmer).

Programming use programmer (Not via serial port)

Then to program your Arduino with your current sketch click the upload button as normal, but whilst doing so hold down the shift key. This causes it to use the programmer (you can hover over the button with the shift key held and it will confirm ‘Upload using programmer’, there is also a menu option to do this in Sketch > Upload Using Programmer).

Burning the bootloader

Note that when uploading sketches using the programmer only the sketch will be uploaded, not the bootloader. If at any point you need to reprogram the bootloader back into your Arduino then use Tools->burn bootloader making sure you have the correct board type set.

USEFUL?
We benefit hugely from resources on the web so we decided we should try and give back some of our knowledge and resources to the community by opening up many of our company’s internal notes and libraries through mini sites like this. We hope you find the site helpful.
Please feel free to comment if you can add help to this page or point out issues and solutions you have found, but please note that we do not provide support on this site. If you need help with a problem please use one of the many online forums.

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