HiLetgo Data Logger Module Logging Shield Data Recorder Shield for Arduino UNO w/SD Card

This HiLetgo module is an inexpensive option for logging data on UNOs and compatibles. It requires a CR1220 coin cell battery, not included, to store date and time when not under power. The real time clock (RTC) requires a software library, but these libraries are widely available online and can be installed from any recent version of the Arduino Integrated Development Environment (IDE). The software library for the SD card is part of an IDE installation. There might be concerns about quality control at this low price, but I have used many of these modules without problems. The RTC will gain or lose time slowly over weeks or months (depending on temperature), but this is a property of the clock oscillator and not this particular device. In conclusion... highly recommended if you need data logging with UNOs!

I bought this for the rtc on a shield. Might use sd logging at some point. I don't like that I had to connect sda to a4 and sdl to a5 myself. I used superglue to attach a wires. The whole point of a shield is to get rid of some of the wire mess. In any case works well. The day of the week did not work for me, but I did not need it. I used this to turn an arduino and a doorbell into a kind of grandfather clock.

This is a good product, I have 5 now and have not seen any problems . They ship with a white stiff closed cell foam to protect the pins. I believe on all 5 boards some of the pins get bent but not bad, but you will need to straight up the pin to they will aline with the Arudino Uno board. All 5 worked fine and I have two logging data now just fine. I was able to find everthing I needed on line to get this card working for me so I did not reley on support but it is nice HiLetgo offers it. The only reason for not giving 5 stars was no battery included and bent pins on all boards.

Used to record my air condition going on and off. Worked great for my use case. Was a lot of fun writing the code and easy to use

These little boards are in excellent condition when taken out of the box. Remember to buy a button cell battery and an sd card. Pins are all straight and all solder joints are visually excellent. I have yet to test the functionality but it appears to be very professionally manufactured.

This shield works well with older Adafruit libraries. Note that the SDA/SCL pins (next to the reset button) are not connected. If you use a board other than R3, you need to connect the A4/A5 pins to proper SDA/SCL pins manually. I would prefer the new Adafruit shield, but this was less than 1/2 price.

Great product but did work little well on my project

Problematic. Not good in practice. I’m not saying it’s poor quality, but it ain’t great either…