TinyEncoder

Microchip AN2434 explains how you can use an ATTiny to build a 2.5MHz quadrature encoder counter. This is a demo board for that.

Sina Roughani

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Description

This is a glorified and hardened breakout board for the ATTiny1616 (QFN-20 3x3mm). The breadboard friendliness should make it attractive for cheap and simple signal reading from incremental encoders, but at the same time, it's a fully fledged Arduino. I structured the pins so you can even use resolvers with it! Resolvers are for super harsh environments and are priced accordingly. No need for an expensive chip though! You can do this board for $1. Its pins are protected for harsh transients with diodes and resistors.

Details

Usage rights- royalty free for all uses, except war machines, and my name must be retained on the board (mostly for feedback and reporting of failures).

Files

atTinyEncoder.kicad_pcb The pretty PCB with organic traces kicad_pcb - 187.71 kB - 01/16/2021 at 18:03		Download
attiny 4.zip The Gerber files needed for fabrication Zip Archive - 50.77 kB - 01/16/2021 at 18:03		Download
atTinyEncoder.pro The KiCAD project file pro - 3.66 kB - 01/16/2021 at 18:03		Download
atTinyEncoder.sch The attractiveness impaired schematic with messiness sch - 14.51 kB - 01/16/2021 at 17:56		Download

Components

1 × ATTiny1616-MNR QFN-16 https://www.digikey.com/en/products/detail/microchip-technology/ATTINY1616-MNR/7354618
12 × TVS Diodes-5V 0402 Sorry, 0603's would be easier to solder, but you're gonna want tweezers
12 × Protective Resistors-47Ohm to 330Ohm 0402 You can use any value you want, just assume someone's gonna pour coffee on your machine and it'll need to handle that.
1 × UDPI Resistor 4.7k 0402 The proprietary UDPI programming interface simply needs a 4.7kOhm resistor in series.

Discussions

Simon Merrett wrote 01/16/2021 at 18:29

Brilliant! What a response time!

Are you sure? yes | no

Sina Roughani wrote 01/16/2021 at 18:38

Making PCB's is really fun!

Are you sure? yes | no

Simon Merrett wrote 01/16/2021 at 19:53

Ikr? I sometimes don't mind if I never get round to populating some of them. Just enjoy the process of getting familiar with new parts, circuits etc and then layout.

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If only you could disconnect that one pin...

TinyEncoder

Description

Details

Files

atTinyEncoder.kicad_pcb

attiny 4.zip

atTinyEncoder.pro

atTinyEncoder.sch

Components

Discussions

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TinyEncoder

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Just one more thing

Description

Details

Files

atTinyEncoder.kicad_pcb

attiny 4.zip

atTinyEncoder.pro

atTinyEncoder.sch

Components

Enjoy this project?

Discussions

Become a Hackaday.io Member

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MegaDebug interposer board

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crabpi

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