Timchi Thoughts

Articles by Timchi

Small update on feather board, circle knit, and Etsy.

The Feather hydroponics board is nearly designed. Hopefully by the end of March a working prototype will be complete and ordered.

A quote for the circle knit laser cut parts has been sent out. That plus a small power supply are the only missing parts. Assembly should be complete in …

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By Timchi

Working on: Hydroponics and Knitting Machines.

Currently working on two main themes, hydroponics and knitting machines.

The Feather board has been coming along nicely. The only portion of the design that remains is the integration of the pH sensor. This is mostly because the work that was done with it was several months ago, so there's …

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By Timchi

Hydroponics and Knitting.

Currently working on two main themes, hydroponics and knitting machines.

Designing a Feather compatible board that will let you monitor parameters essential to hydroponics, namely EC, pH, humidity and temperature. The overall goal of this board to to get all these sensors at a BOM under $5, with a sale …

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By Timchi

Boards ordered, recipe db 'promoted', noiselib coming along.

Great news! A small EC sensor has been designed and boards have been ordered. Hopefully they'll come in soon (although the eta is the 20th). Next up is the design of a pH sensor. This will require a bit more "experimental" work, but the concepts are sound and it should …

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By Timchi

Designing inexpensive pH sensors.

Can we trade accuracy for cost?

Looking at many of the pH sensors, with their $10 (or more!) probes, along with supporting electronics, I begin to wonder if such accuracy is really needed...

Many plants have a decent pH range in which they are happy, most plants have at least …

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By Timchi

Designing sensors for hydroponics.

Additional materials purchased. Need some copper tape, for sensors, 0.1" headers to facilitate making breakout boards. Additionally, purchased pH strips and calibration fluid to help construct low cost pH sensors.

Also, required some bags that were made. Hopefully those, along with two other panels that have been made can …

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By Timchi

Finally building hydroponic sensors.

After much time gathering materials, and some planning, work has finally begun on farm automation using internet connected computers and hydroponics.

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By Timchi

Weekly highlights, recipe database.

What was accomplished for the past week.

  1. Upgraded the Recipe database to have cleaner, more ordered directions.
  2. Remove text size restrictions on many fields of the Recipe Database.

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By Timchi

Highlights of the week.

Some quick highlights of items accomplished over the week.

  1. Creation of this blog.
  2. Ingredient scripts, to clean up scripts.
  3. Implementation of new spiders.

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By Timchi