Public Lab Wiki documentation

Data Logging

« Back to Water Sensors

Data loggers can help to record data from a sensor over time -- often over days or weeks, or even months. There are a variety of data loggers available, both commercial and open source. Each entry from a logger -- stored on, for example, a memory card -- may have a timestamp and some data loggers can record location from a GPS as well.

Data loggers can be paired with specific sensors, and an enclosure, as part of a test.

Design constraints

What are we trying to do that existing commercial data loggers don't do, or don't do well enough? We're looking for designs that optimize:

  • low cost (i.e. <$100)
  • easy to use
  • easy to build or buy
  • weatherproof (possibly)
  • waterproof (possibly)
  • Arduino-compatible (so that they're compatible with the huge Arduino ecosystem)


Most of the below options are #arduino based, and all are open source:

Title Last edited Edits Likes
MACA 9 days ago by nanocastro 4 2
WebJack 14 days ago by warren 5 2
Mayfly about 1 month ago by warren 5 0
Log-a-Long Timer 3 months ago by cfastie 1 1
New Concepts for OSHW in Indoor Gardening 4 months ago by Aigi666 18 1
Mini Pearl Logger 4 months ago by cfastie 6 1
SkyPod GPS Logger 5 months ago by cfastie 8 2
Nano Data Logger 5 months ago by cfastie 10 3
DustDuino 5 months ago by warren 26 78
Riffle: an Open Source Water Monitoring Approach 6 months ago by warren 100 21
Fido - The Raspberry Pi based Temperature Alarm that sends text messages about 1 year ago by rjstatic 3 1
Mãe d'Água over 1 year ago by vjpixel 9 7

Title Author Updated Likes
Adafruit Feathers for datalogging @cfastie 6 months ago
Simple data logger @david_uwi about 1 year ago
Particle Electron @kinasmith over 1 year ago
DataLogger: Part 2, Hardware design @JSummers about 4 years ago
An Arduino Based UnderWater Sensor Platform @EdMallon over 4 years ago

Edit the full spreadsheet here (by @cfastie)


Title Author Updated Likes
Looking for hands-on help with a datalogger! @bronwen about 1 month ago
what data-logger will work with my portable HCHO meter? @nshapiro about 2 months ago
How simple would it be to connect the AS220 wind sensor P to the Mini Pearl Logger? @warren 3 months ago
Substitution for conductivity meter @Ag8n 3 months ago
How much of an Arduino's onboard memory would be available for datalogging? @warren 6 months ago
How similar is the code for the KnowFlow and the RIFFLE data loggers? @gretchengehrke 6 months ago
How does data from a Kestrel wind sensor compare to an Modern Device wind sensor? @warren 8 months ago
Walkthrough: What software is used to get wind data off the Kestral? @kgradow1 8 months ago
How do we get data off of different wind sensors @warren 8 months ago
Suggestions for a temperature sensor for surface (stone) measurements? @MadTinker 9 months ago
What is your favorite program to plot data from a data logger? @gretchengehrke 10 months ago
Can commercially available water sensors work with DIY data loggers? @gretchengehrke 10 months ago
What information do I need to assess if a data logger and sensor will be compatible? @gretchengehrke 10 months ago
What are ways to record ambient temperature every 5 sec and export easily? @carohowe 10 months ago
What would be a good basic activity to test out a data logging device in water? @stevie 11 months ago
Sparkfun data logging troubleshooting? @efuhrm 11 months ago
Any simple ways to measure wind direction from a data logger? @warren 12 months ago
Getting a Raspberry Pi to output data by emulating a keyboard @warren about 1 year ago
lightweight air quality sensors for a weather balloon @glenc over 1 year ago
Is it possible to log the data from a dustduino without a wifi network? @kp55 over 3 years ago
Show 10 more

Ask a question  or help answer future questions


We're hoping to collect a set of activities you could do with several different data loggers here, such as an example "field test," so please add help us by adding activities which can be performed with different data loggers:

Purpose Category Status Author Time Difficulty Replications
Build KnowFlow: automatic water moniter - - @shanlter - - 1 replications: Try it »
Measure coarse and fine air particulates with a DustDuino - - @Schroyer - - 6 replications: Try it »
DustDuino Sketches - - @Willie - - 0 replications: Try it »
Simple data logger - - @david_uwi - - 0 replications: Try it »
Sensor Collection For KnowFlow --a water-quality-testing facility - - @juncheng09 - - 0 replications: Try it »
Willow Creek Water Quality Monitoring (EC and TDS) - - @MadTinker - - 0 replications: Try it »
Knowflow组装(一)——pH和温度监测 - - @incaking - - 0 replications: Try it »
Low-power timer upgrade - - @cfastie - - 0 replications: Try it »
Mounting and deploying a Mini Pearl Logger - - @cfastie - - 0 replications: Try it »
In the heat of the pile observe - @cfastie - - 0 replications: Try it »
Compost is hot, says Riffle field-test - @cfastie - - 0 replications: Try it »
Blink a LED - Write a 'Sketch' and build a breadboard circuit for the Riffle build review-me @pdhixenbaugh 1h medium 1 replications: Try it »
Help collect environmental sensors + probes on a shared list - - @warren - - 0 replications: Try it »
Datalogger part 2a; Generating a signal, amplifying it, and displaying the data. - - @JSummers - - 0 replications: Try it »
Putting sensor data to work - - @cfastie - - 0 replications: Try it »
Mini Pearl Logger longer - - @cfastie - - 0 replications: Try it »
Riffle test 1 verify - @cfastie - - 0 replications: Try it »
Riffle campout test-limits - @cfastie - - 0 replications: Try it »
Show 8 more

Add an activity  or request an activity

Activities should include a materials list, costs and a step-by-step guide to construction with photos. Learn what makes a good activity here.


How do you keep a data logger going in the field? Solar, big batteries, even run an extension cable out? We're developing resources on powering your data-loggers here.

Power Questions

Title Author Updated Likes
How to power the KnowFlow? @rockets 10 months ago

Ask a question  or help answer future questions


Purpose Category Status Author Time Difficulty Replications
Solar Powered Air Quality Sensor - - @nicholas - - 0 replications: Try it »
Low-power timer upgrade - - @cfastie - - 0 replications: Try it »

Add an activity  or request an activity

Activities should include a materials list, costs and a step-by-step guide to construction with photos. Learn what makes a good activity here.

Waterproof enclosures

The #riffle project -- and others -- have explored a lot of ways to make cheap waterproof enclosures for data loggers, but where wires and sensors can still stick out. Here are a some notes and prototypes under the tag #data-logger-enclosures. You can also visit the page on sensor enclosures here

Title Author Updated Likes
Nalgene submarine @cfastie about 2 years ago
Riffle conductivity caps and other housing ideas @mathew over 2 years ago
buoy for water sensor @DavidMack over 2 years ago
Rubba Stoppaz @donblair over 2 years ago
sensors in soda bottles @mathew about 3 years ago
sketching a waterproof pop bottle sensor system @mathew over 3 years ago

arduino tool riffle data-logging method oil-and-gas nano-data-logger datalogging data-logger-enclosures