Minipearl400

Mini Pearl Logger

The Mini Pearl Logger is a powerful and inexpensive device for logging environmental data. It is based on an Arduino Pro Mini in combination with a real time clock and a microSD card reader. Combining these common electronic components allows logging data from multiple sensors for multiple months. Three different kits to build a Mini Pearl Logger are available at the KAPtery.

Learn more on the wiki page

Notes on mini-pearl-logger by cfastie

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Installing the water-level monitor

by cfastie 4 months ago | 0 | 206 | 5

I did not think it would take this long to get the [water-level monitor](https://publiclab.org/ta...

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Assembling a Mini Pearl Pro Logger

by cfastie 4 months ago | 0 | 192 | 2

A Mini Pearl Pro Logger Kit includes four electronic modules which must be soldered together. Wir...

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Mounting and deploying a Mini Pearl Logger

by cfastie 4 months ago | 1 | 169 | 2

A Mini Pearl Logger is built by combining several ...

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Low-power timer upgrade

by cfastie 4 months ago | 0 | 224 | 2

The Log-a-Long Timer is a home-made circuit for con...

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Real time and temperature

by cfastie 5 months ago | 2 | 282 | 2

I had some [Mini Pearl Loggers][1] outside this month and encountered three potential problems re...

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How to make a low power timer

by cfastie 5 months ago | 1 | 252 | 2

[UPDATE (III/1/18): I found an easier way to build this timer. see: https://publiclab.org/notes/...

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A DIY low power timer

by cfastie 5 months ago | 1 | 422 | 1

[UPDATE (III/1/18): I found an easier way to build this timer. see: https://publiclab.org/notes/c...

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New data loggers for long-term logging

by cfastie 5 months ago | 0 | 259 | 2

_Above: Two Mini Pearl Loggers are in yogurt containers in my woodshed. BME280 sensors extend abo...

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Log all the data with Adafruit's TPL5110 Low Power Timer

by cfastie 6 months ago | 4 | 606 | 1

Most of the data logging I did this summer and fall was to learn how to make a data logger operat...

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Longer Mini Pearl logging

by cfastie 6 months ago | 0 | 281 | 1

In mid October I started three [Mini Pearl Data Loggers](https://publiclab.org/wiki/mini-pearl-lo...

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Adafruit Feathers for datalogging

by cfastie 7 months ago | 3 | 1,341 | 2

Two years ago, Adafruit introduced a new line of Arduino compatible microcontroller boards. The...

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Mini Pearl Logger longer

by cfastie 10 months ago | 0 | 220 | 1

I made some incremental progress getting the Mini Pearl Logger to log data for more than two week...

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Mini Pearl Jam

by cfastie 12 months ago | 2 | 294 | 2

*Above: Some perfectly good resistors that I removed from some perfectly good PCBs in hopes of lo...

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The Mini Pearl Logger

by cfastie about 1 year ago | 3 | 473 | 3

This spring I did some tests with a [data logger based on an Arduino Nano](https://publiclab.org/...

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