Breadboard header for ATTiny 25/45/85

Vassilis Papanikolaou   vpapanik@gmail.com     
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This handy breadboard header for ATTiny 25/45/85 microcontroller is a new design based on the original idea from Tinkerlog. Maybe the most useful feature is that it can provide power to the vertical breadboard strips while connecting all six port pins to the horizontal strips. Other features are :

 

  • 6-pin ISP connector (works great with USBtinyISP programmer)

  • easily accessible reset button

  • header for optional ceramic resonator

  • power led indicator

  • smoothing caps

Measuring approx. 4 x 2.5 cm (1½ x 1 in) is a great addition to your breadboard projects saving lots of extra connections.

Schematic

Schematic

Bill of materials

R1                       10kΩ

R2                       330Ω

C1                       100nF

C2                       100uF/16V

LED1                  Green 3 mm

Button                  Omron type button

Headers               1×2, 1×3, 1×6, 2×3

IC Socket            8 pin

MCU                   ATTiny 25/45/85 PDIP

Don’t forget to solder the wire link under the IC socket (red line) !

Silk

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Photo of PCB – parts side

Photos

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Photo of PCB – copper side

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PCB

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