Waveshare AVR Programmer USB AVRISP XPII Compatible with ATMEL at AVR ISP mk2 mkII in-System Programmer Supports AVR Studio 4/5/6/7 Or Higher Version

100% MkII compatible, works perfectly with AS7 out of the box, comes with every cable you could ask for.This programmer is 100% compatible with the original MkII - so much so that AS7 offers to automatically update the firmware on connection.It supports the "read target voltage" function which can save lots of time when troubleshooting programming problems. If you check the voltage and it is not what you were expecting, you immediately know to check the connection and target power supply.Also supports TPI protocol programming, which is needed for the new XMEGA and ATTINY chips. TPI programming is FAST compared to old skool 6-pin ISP, and only needs 4 pins total.You can also get this unit to work with Arduino on windows using the Zadig usb driver replacement trick (Google "Arduino MkII Zadig").Quality-wise, I have bought 10+ of these units and never had a problem. Some have been used daily for over a year.If you are working with AVR8 chips in Atmel Studio, then I think this is the best programmer out there - including the expressive and hard-to-use STK's. I have both STK500 and STK600, but end up using the MkII every time unless I need to do some exotic high voltage programming.If you have to work in both Arduino and AS7, then this programmer is even better since you can switch back and forth and everything just works (only limitation: you can no leave the "device programming" tool open in AS when you program from Arduino).Don't waste time with the slightly cheaper MkII clones - is full featured, has the connectors you expect, and works out of the box.

I tried for days to get a new Pickit-4 to program my ATMEGA328P-AN in-circuit device to no avail. Microchip support was helpful, but there was apparently an obscure setting that prevented my successful device programming.This new AVR ISP MKII arrived today, and I was soon able to get my progress going again. I have never used one of these before, but operation went well and things are looking good.The enclosed cables with the unit were essential to customize this programmer to my custom PCB.Using the latest Microchip Studio 7, I can't find anything wrong, anywhere with this device.Do yourself a favor and just get it.

This programmer does not work and fails when trying to program more than 64 KB Flash as with the ATxmega128A1U via PDI. The following error occurs after getting through most but not all of the programming:03 40 53 416: An error occured while executing command with ID 0x04. An error occured while executing command with ID 0x50. The USB device has been disconnectedI contacted the seller/manufacturer and after a week they have still not responded so their customer service is terrible.

Works great just need the updated studio.

My ISP programmer on the STK500 development board quit working. When I plugged this unit into my Windows Vista computer, it found the usb driver in the studio4 software and displayed it as AVRISP mkII in the device manager. This device will plug into the stk500 board and function as the programmer using studio4 software. It will also program standalone devices with an external power supply. If the programmer wiring is wrong, the unit displays a red led. When it is communicating with the chip, it turns green. I've programmed the ATmega328/p and ATmega1284p, and so far it's been working good.

The programmer works exactly as the original AVRISP MKII i connected it to my machine and it was instantly recognized as such, and i could read and write AVR chips. I also had bought other programmers (essentially did a shotgun trial here) but those other 2 were only working with Arduino/AVRdude not atmel/microchip studio.

Unit works as described.

Unlike some other programmers I tried this one worked flawlessly. I was able to do in 5 minutes what I had previously spent literally hours trying to sort out. Lesson learned: spend the money.