Remixed sej7278's tray to work with my multi-type ICSP programming breakout board. Loved the snap-in concept and just had to adjust the board dimensions to fit.

The board has a 20-pin ZIF socket and can program any thru-hole AVR chip of 20 pins or less. Separate 6-pin ICSP headers are used to select the chip type and additional jumpers are provided for similar chips with minor differences. There are also socket pins provided for 3-pin ceramic resonators to accommodate chips that were already programmed for an external resonator.

Eagle schematic and board files are provided. You can order ready-made unpopulated PC boards 3 at a time from here: https://oshpark.com/shared_projects/C6x84QJX

Monoprice

Mini Delta

No

Doesn't Matter

0.14

99%

If your printer has sizing issues you may have to adjust the scale before printing. The board is an exact fit to the bumper.