Introduction: AVR ISP Target Board

The two main microcontrollers I program with are the 8-pin ATtiny85's and 13's and the ATMega328. To make things very simple for myself I made a target board with seperate IC holders for both of them (yes I know you can put them into one, but I always mess up which direction to put it in, even though its not that hard). There are lots of target board models to choose from, here is another to add to the lot. One benefit that this one has compared to others I have made is that it has the slots to insert an optional resonator or crystal oscillator. It also has easily accesibly / pluggable 5V and GND posts showing. It works with a 10-pin ISP plug from a programmer. So this isn't the most useful target board, but it fits all of my needs so I'm sharing it :)

Step 1: Materials

Parts needed:
  • small experimenters board
  • 3-hole header
  • 10-pin ISP header
  • 28-pin IC socket
  • 8-pin IC socket
You don't need to include any parts you dont want to use. The only mandatory parts are the 10-pin ISP header and one of the IC sockets (and the board I guess).

Step 2: Schematic

The schematic is pretty simple, but it takes a small amount of thought to place all the wires without making it bulky. You want to ensure the IC sockets are easily accessible. 

The schematic is messy I know. The black lines are on the top surface of the board and the red lines are on the bottom of the board (reverse side).

The picture of my soldering job is of the back of the board and is only for reference if you really need it. I can never find any use out of staring at pictures of soldering jobs unless I am 100% lost on the circuit... but its there anyways.

Solder away!

Step 3: Finished

You can now plug any AVR microcontroller into the sockets (that fit right) and use your programmer that way. This is handy when you don't want to build the ISP header into the other circuit you are designing or if you want to burn multiple chips with the same code.

Comments

author
umursengul (author)2012-12-18

Thanks for the instructable, but I wanna know where did you get the programmer?

author
Onyx Ibex (author)umursengul2012-12-19

I like the one I got here best: http://adafruit.com/products/46

o
r you can look on eBay and get one like this. Just search for "avr isp programmer". They will most likely all be from china so you will have to wait a month for shipping. But they area a lot cheaper. 

I would go with the adafruit one purely for the reliance that it will work no problems. I always feel like I'm gambling for parts when they come from China.

author
umursengul (author)Onyx Ibex2012-12-24

Thanks for the info! :) Yup gonna buy from Adafruit, when I buy from China, I feel like gambling either...