Project image
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$452
pledged of $1,500pledged of $1,500 goal
23
backers
Funding Unsuccessful
The project's funding goal was not reached on Thu, August 7 2014 7:03 PM UTC +00:00
Last updated February 7, 2015

ATTiny TinyGrid85 (Arduino)

ATTiny board with useful prototyping area

ATTiny TinyGrid85 (Arduino)

ATTiny board with useful prototyping area

$452
pledged of $1,500pledged of $1,500 goal
23
backers
Funding Unsuccessful
The project's funding goal was not reached on Thu, August 7 2014 7:03 PM UTC +00:00
Last updated February 7, 2015

About

We love Arduinos and breadboarding but we often end up with projects which are really too small to waste an entire Arduino. We also wanted some way to breadboard our designs with an ATTiny85 part. Often times we just want one or two boards and find it hard to justify a board spin for a one-off design.

The other frustration we have with the Arduino is the lack of proper mounting holes. A board should have sufficient solid mounting holes.

So we designed the TinyGrid85.

Link to TinyGrid85 store

Features

  • ATMEL ATTiny85 Microprocessor (or compatible 8-pin part)
  • Arduino Compatible (works with Arduino bootloader and Arduino IDE)
  • Prototyping area with power/ground connections
  • Brings out all 5 I/O and reset lines to grid columns
  • Laid out like a breadboard with vertically connected traces.
  • Power and Ground horizontal connections though all columns
  • Labeled (with letters/numbers) for easy documentation
  • H1 - Install jumper to select regulator or remove for ISP +5V
  • H2 - 6-pin ISP Download Header
  • 5V Power Regulator with generous area under the regulator for heat dissipation
  • 2.1mm Connector for AC/DC adapter 7-9V input
  • (4) 4-40 or M3 screw holes for solid mounting
  • 49x49 mm board

Grid Connections

The grid is laid out as 12 columns and 10 rows. Power and Ground lines are bused horizontally on the center rows. The columns are split up as shown here above and below the Power/Ground rows.

TinyGrid85 - grid connections
TinyGrid85 - grid connections

Board Dimensions

TinyGrid85 Board Dimensions
TinyGrid85 Board Dimensions

Programming

The TinyGrid85 can be programmed from the ISP connector. Here are instructions for programming the card from an Arduino UNO.

Program your TinyGrid85 from an Arduino UNO
Program your TinyGrid85 from an Arduino UNO

Rewards

Bare Board
Bare Board
Basic Board - Assembled
Basic Board - Assembled
TinyGrid85 with GVS connectors
TinyGrid85 with GVS connectors

Example Design

Here is an example of the kind of breadboarding you can do with this card. This board is an optically coupled logic probe design. I was able to quickly prototype this board design before I committed the board to layout. Your design will be your own.

TinyGrid85 configured as TinyOptoProbe
TinyGrid85 configured as TinyOptoProbe

Risks and challenges

The ATTiny85 part has been in short supply lately so there's always the risk that this Kickstarter could go big enough to make that an issue. Other than that we have been building and using this card for a while so we don't see any serious challenges. We have a team of local board assemblers with experience in building and testing small electronic assemblies and we should be able to scale assembly as required.

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Support

  1. Select this reward

    Pledge US$ 1 or more About US$ 1

    You recognize and appreciate our idea/work. You receive our gratitude for helping.

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  2. Select this reward

    Pledge US$ 8 or more About US$ 8

    Blank PCB board. Includes shipping to US address.

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  3. Select this reward

    Pledge US$ 15 or more About US$ 15

    Assembled PCB with socketed ATTiny85 and 5V power regulator circuitry. Includes shipping to US addresses.

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  4. Select this reward

    Pledge US$ 18 or more About US$ 18

    Assembled and tested PCB with socketed ATTiny85, GVS headers and 5V power regulator circuitry. Includes shipping to US addresses.

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    Estimated delivery
    Ships to Only United States
    17 backers
    $

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Funding period

- (30 days)