Category: Logging

Debian NSLU2 for Garden Webcam

Update 2011-09-05: I have created a new blog about electronics only – check it out here: Electronic measurements, NSLU2 and soil moisture sensor I’m setting up my NSLU2 computer again because it can help me in the garden as a monitor and control device. You can attach a webcam or monitor things like air temperature,

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Category: Logging

Dusting Off My Plant Moisture Sensor System

This is an update on my garden temperature and moisture logging system that I installed in my previous garden. It was up and running for about a year before I took it down when we were going to move. Some of the weather data it collected can be found here. I used ordinary network cable

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Category: Logging

How to Grow King-Size Red Beets

It pays to watch the soil moisture closely if you want large vegetables. I’ve had good results this year using my garden logging system. Actually my vegetables have gotten a little out of hand. I think the cat is a bit scared too 😉 : I’ve been kind of obsessed with soil moisture now that

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Category: Logging

Soil Moisture Sensor Circuit Explained

Update 2011-09-05: I have created a new blog about electronics only – check it out here: Electronic measurements, NSLU2 and soil moisture sensor The 1-wire soil moisture sensor circuit I use in my garden is designed by Eric Vickery from http://www.hobby-boards.com. (c) 2006 Hobby Boards  Designed by Eric Vickery Title: Moisture Meter 3 Rev: 3

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Category: Logging

Soil Moisture Sensor Update

Update 2011-09-05: I have created a new blog about electronics only – check it out here: Electronic measurements, NSLU2 and soil moisture sensor My Watermark soil moisture sensor and additional circuit has been running 24/7 for about 4 months now, and it really is a stable system. Here are the data collected so far: On

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Category: Logging

Category: Logging

Soil Moisture Sensor

Update 2011-09-05: I have created a new blog about electronics only – check it out here: Electronic measurements, NSLU2 and soil moisture sensor In the middle of the picture you can see the moisture meter board from hobby-boards.com and on the right the Watermark soil moisture sensor. When the moisture sensor gets wet its electrical

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Category: Logging

Temperature Logging System Overview

Here’s an overview of the garden temperature logging system as it is at the moment: Here are links to blog posts with more information on the different blocks: NSLU2: Small Computer As Garden Control Center Soil Temperature Logging How To Automatically Update Your Temperature Graphs Soil temperature sensor: Soil Temperature Sensor Air temperature sensor: Garden

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Category: Logging

How To Automatically Update Your Temperature Graphs

Here’s a bit more explanation on how to run the temperature logging system I described earlier. The system automatically stores the value of its sensors every five minutes using the crontab function in Linux. crontab is a schedule of recurring things to be done in the form of commands to be run on the system.

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Category: Logging

Soil Temperature Logging

The soil temperature sensor is now in the ground and measurements have been coming in for days now. I have placed the NSLU2 computer in the windowsill and laid an Ethernet cable out to the raised beds. The scripts for this logging functionality are available here: make_temps_2.sh update_temp_2.sh owfs is used as interface to the

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