A Set AVR ISP USBtinyISP Programmer for Arduino Bootloader USB Download Interface

... be careful with the pin out. If you interpret the red stripe of the cable as pin 1, the 2x3 ICSP header on the programmer is not an exact match for arduino boards (at least not for the uno or nano). It turns out the two rows need to be reversed. The programmer has the pin/signal assignments on the bottom of the board so be sure to compare that to the board you are programming. Once I figure this out, things worked great.The pinout of the 2x3 header for the two devices is:Arduino Programmer1. MISO VCC2. VCC MISO3. SCK MOSI4. MOSI SCK5. RESET GND6. GND RESET

I bought this programmer to update the firmware on my Creality Ender-3 3D Printer. Unfortunately, the connector is too wide to fit into the ISP programmer slot so I had to take a file and carefully file away the plastic without ruining the connector. Then, I had to fiddle with driver settings for quite a while to get the driver to properly install. To be honest, I am not certain what I did for it to work. You must also change the Arduino programmer to USBTinyISP (like the product description says).Ultimately, this product is not plug-and-play if intended for the Ender-3 as you need to modify hardware and software but it will get the job done. I cannot speak to other applications but, if I could redo this, I would NOT purchase this product and instead buy a Arduino Uno and breadboard wires like many tutorials on YouTube do. An even better solution is to purchase an upgraded board with a better microcontroller that does not require an ISP programmer but I will leave that for your next Ender-3 upgrade.

Mine worked like a champ right out of the box. I use AVRdude to upload Hex files directly to my Printrboard Rev F without moving any jumpers or any of that mess. It works exceedingly well as a matter of fact. I am very glad I bought it and I intend to use it many times to upgrade the firmware on all my 3D printers. My Orballo Prusa Steel is next up to bat and then my Creality S4 that no longer seems to take uploads through the USB connection is going to get some love from this little thing. It's amazing.

I use this to burn the Arduino bootloader to unprogrammed ATMEGA328P chips. I also use it to upload programs to the 328P through the ISP header. It works great for its intended purpose. The only thing is that pin 1 on the cable I received was not marked so I had to mess with the connector to figure out the correct orientation. After that I marked it with a silver sharpie. I have had absolutely no problems and would definitely recommend it.

Was able to get it to work with no problem, just selected it as the programmer, and burned the bootloader and uploaded the program with no hiccups. Just make sure to look at your pin out first to make sure you hook it up the right way. Worth the money.

This was very hard to get to work. I googled hard on this one and im still not sure how i made it work. Error after error flash firmware burn bootloader still no go. after 3 days of mucking about my ender 3 finally gave a blank screen on boot And allowed me to flash over usb. Somhow it managed to burn a bootloader after saying failed. So after 3 days of following 2 different instructionals many times it just worked. I would not buy this again lol

I've been using this for a year now to program ATtiny chips through Arduino IDE for lots of projects. I never get errors, works consistently every time. I made a PCB for ATtiny85 and ATtiny84 so no breadboarding needed.

This works, but I get verification errors about half the time, and have to rewrite a second time.This is true even with a new processor chip, and even on the Uno board.I can't complain much at the price, and it does get the job done.