hello everyone
Today, this is my first time post here, rather than replies. I am very happy to come to this forum to learn more knowledge of electronics.
I share a project I've ever done, an AVR/51 ISP programmer, Maybe it is simple, I think there must be someone who need it. PCB and schematic is easy to understand, people who use it can also do some improvements needed. A few years ago, I made some when I learned AVR.
Recently, a project need it, I have to make some.
PCB picture below, it is actually more like a single layer board, bottom layer only has one line.

I just sent my gerber files to Smart-prototyping who is in China to produce my PCB. and I will buy ATmega and the other components from Digikey. I will solder them by myself.
After assembling the board, download the firmware program to AVR ISP programmer. You need an additional downloader to download to the programmer. I buy it from sparkfun(https://www.sparkfun.com/products/11801). In addition, the computer needs to install the driver.

Thanks
dreamtale

 

You could have bought USBASP for less than 5$ which would do the same job as that 20$ programmer.SparkFun is really over priced on some stuff...

 

Yeah,many products in sparkfun,seeed studio or other Market Will be a little expensive.Some enthusiasts often make it by themselves.But I hope this project may help more people in need.

 

Its nice project,but it really sucks that you need to have a programmer to make another programmer.Would been nice if AVR and PIC made MCU's with firmware already on the chip but then nobody would buy their programmers...

 

Its nice project,but it really sucks that you need to have a programmer to make another programmer.Would been nice if AVR and PIC made MCU's with firmware already on the chip but then nobody would buy their programmers...

Yep. I saw another programmer that uses ATmega8. But you need a programmer to program the ATmega8. So you need programmer to build a programmer. Nuts!

 

When you need a certain mass-produced products, a download is not enough. Use a download can produce more downloader. Also, when you want to download integrated on your PCB, You can refer to this project.