Welcome to EnviroDIY, a community for do-it-yourself environmental science and monitoring. EnviroDIY is part of WikiWatershed, an initiative of Stroud Water Research Center designed to help people advance knowledge and stewardship of fresh water.
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Blog

Introducing the new Mayfly Logger

It has a combination of features and capabilities that make it one of the most powerful and flexible logger platforms available.

Trigger Teledyne Isco Sampler by Campbell Logger

Hello! Anyone has experience with triggering a Teledyne Isco Water Sampler external by a Campbell Logger? It seems to be a small challenge and we are happy for any information!

Arduino DataLogger Board

Wanted to share my most recent attempt at a customized Arduino based (Mega2560) data logger board.  I’ve used a Silicon Labs CP2104 USB interface and also contains: -DS3231 RTC with Battery B/U -uSD Card -4MB MRAM (SPI interface) – 3 Serial Port Headers (3.3V/5V) **I left Serial dedicated to the USB, but Serial1, 2, and 3 are avail. -3.3V/5V I2C headers -3.3V/5V SPI headers All digital...[Read More]

Precision Sensor Board

I recently designed a board that incorporates digital pressure, temperature, and dewpoint sensors I’ve called the PTU board. I deal with weather balloon tracking systems and the information sent back from the radiosondes is usually called PTU data (Pressure, Temperature, and Humidity). I’ve written 2 new Arduino libraries for the pressure and temp and reused an existing library for the...[Read More]

16-channel data acquisition system

A few months ago I was asked by a researcher here at the Stroud Water Research Center to come up with an automated way to measure the voltage of 8 fuel cells.  The cells need to be electrically isolated from each other, so that requires differential measurements instead of the more common method of using a common ground for everything and then just doing single-ended measurements.  I looked into c...[Read More]

Side scan sonar: Towards a low cost benthic mapping tool

I originally learned of using side scan sonar/side imaging/fish sonar from a kayak fisherman tinkering around with a Side Scan Sonar/fish sonar device. I found more academic literature as I dived deeper: Assessment of Deadhead Logs and large Woody Debris using Side Scan Sonar and Field Surveys A Novel Approach to Surveying Sturgeon Using Side-Scan Sonar and Occupancy Modeling in Marine and Coastal...[Read More]