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Data Logger Shield - Arduino Pro Mini

An inexpensive, easy-to-assemble, low power consumption Arduino Pro Mini data logger

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Description

Imagine if a citizen science data logger solution was so inexpensive and easy-to-assemble that you could build five of them for under $180 and in less than 3 hours. What if it was so accessible and flexible that a child could use it for their first Arduino project and a citizen scientists could also deploy it underwater for over a year to monitor temperature changes?

This Arduino Pro Mini data logger shield uses a DS3231 RTC module and a micro SD card reader module. 6 analog and 7 digital pins of the Arduino Pro Mini are available for input/output customization. This data logger shield is heavily influenced by the data logger builds shared freely by others online.

This shield is my first PCB build so I am actively looking for feedback.

Files

ArduinoProMini_DataLogger_v1.0_Schematic_20230503.pdf Arduino Pro Mini Data Logger v1.0 schematic diagram Adobe Portable Document Format - 32.53 kB - 05/03/2023 at 22:01		Preview

ArduinoProMini_DataLogger_v1.0_Gerbers_20230503.zip Arduino Pro Mini Data Logger v1.0 Gerber files x-zip-compressed - 41.61 kB - 05/03/2023 at 22:00		Download
ArduinoProMini_DataLogger_v1.0_20230503.zip Arduino Pro Mini Data Logger Shield v1.0 KiCad project x-zip-compressed - 317.96 kB - 05/03/2023 at 21:59		Download
DataLoggerShield_ArduinoProMini_BOM_02-14-2021.xlsx Arduino Pro Mini Data Logger v1.0 bill of materials sheet - 12.71 kB - 02/14/2021 at 18:42		Download

Project Logs

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Datalogger v1.0 Board Assembled and Working
John Opsahl • 02/27/2021 at 17:56 • 0 comments
I received the Datalogger v1.0 boards from OSH Park last night. Soldering took less than 30 minutes for this first board. Everything is operational. This is very encouraging for my first PCB design.

The data logging script sequence:
1. Arduino goes to sleep to minimize power consumption
2. RTC module wakes Arduino up after a user specified amount of time
3. Arduino logs a timestamp and whatever other sensor information is being collected to a .csv file on the SD card
4. Go back to step 1
Then the user can pull the .csv data file from the SD card as needed and plot the data.
PCB and Components are on order
John Opsahl • 02/14/2021 at 18:47 • 0 comments

I ordered qty 3 of the first revision of the data logger shield from OSH Park last night. PCBs should arrive in the next couple of weeks.

Header components are on order from Digi-Key.
Looking like the total material cost will be around $35 per shield.

View all 2 project logs

Discussions

B wrote 05/02/2023 at 19:56

May I get the gerber files for this PCB? I am doing a datalogger to record when clouds form in huge underground cave rooms in China.

Thanks!

Are you sure? yes | no

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