Tiny Ruler

Description

This device is a simple Ruler with an Atmel ISP programmer (USBtinyISP) or a simple development/experimentation platform using the micronucleous Bootloader.
I developed it as a single-layer board with the least possible components so it can be made in any pcb lab and doesn't cost too much.

At the Moment I havn't made a prototype but I will make one soon :)

Components

1 × Attiny45 (or 85 - maybe better for experimenting) Microprocessors, Microcontrollers, DSPs / ARM, RISC-Based Microcontrollers

2 × 68Ohm Resistor 1206 Package

2 × 3.6V Zener diode in sod80 package Later I will make one for sot23 package (I have thousands of those...)

1 × 330Ohm Resistor 1206 Package

1 × 1.5k Resistor 1206 Package

Project Logs

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Made a Prototype :)
XDjackieXD • 05/11/2014 at 20:01 • 0 comments

I finally etched the board and soldered everything I had at home (the micro usb socket and the attiny are on their way ;D )
Also I managed to fit the sot23 version of the zener diodes on normal 1206 pads (I had 3000 of them at home...)
After etching:
After cleaning & silver-plating:
And finally after cutting and populating:
The pinheader is glued to the board using super-glue.
Touch it!
XDjackieXD • 04/29/2014 at 19:41 • 0 comments

I made a version of the board with a touch sensor and a programmable led on board to make it a bit more useful as a little development board :)

View all 2 project logs

Build Instructions

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Step 1

Etch the pcb (maybe use black FR4 and silver plate the traces? would probably look very cool ;) )

Step 2

Drill a Hole in the Center of the OpenHardware-logo using a 3mm drill bit

Step 3

solder the components to the pcb starting with the smd components (there are very good how-tos on smd soldering)

Discussions

davedarko wrote 05/01/2014 at 09:04

I just read you comment on the schematics pic with the footprint of the attinys... i can totally relate to that, made me laugh and give you a skull ;)

Are you sure? yes | no

Eric Evenchick wrote 04/30/2014 at 05:17

Does the AVR relate to the ruler at all, or is it a ruler/dev board? Seems like a good way to give away useful boards, even if they don't get built.

Are you sure? yes | no

XDjackieXD wrote 04/30/2014 at 07:09

I combined the ruler with the dev board because I wanted something to play with at school in boring computer/programming classes.
And I also wanted it to be useful without a PC and have it replace something in my pencil case because it's really full all the time :D

Are you sure? yes | no

Tiny Ruler

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Made a Prototype :)

Touch it!

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