A PCB (either premade or from perf) that can hold the following.
We like the EMSL devboards for this use, they are available in 'xx8 and '2313 formats.
|Full dev kit|
|ZIF socket||An easy-to-open ("zero insertion force") and close socket, we prefer the ones with gold contacts - a little pricier but will last a lot longer. Make sure they are 'universal' - can take both 0.3" and 0,6" wide chips!||ZIF socket|
|Indicator LED||Use it for 'power good' or other blinky.||5mm red diffused|
|6-pin box header||With a key, its less likely to insert the cable backwards.||2x3 pin header|
|Ceramic Oscillator||16MHz is good, but really anything >4MHz is OK.||Ceramic resonator|
|Ceramic 0.1uF capacitor (104)||Nearly any capacitor will do, just to provide a little power supply smoothing.||Ceramic Capacitor|
|Rubber bumper||For protecting the PCB!||Rubber bumper|
|Programmer||We like the USBtinyISP - not just because we designed it but also because it can provide 'target power' - so you don't need a seperate power plug!||USBtinyISP|