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

This is a HiLetgo knockoff, not an Adafruit product. It does not exactly match the documentation linked in the product description, but it appears to work fine and is well worth the money!br>br>Mine came with stacking headers pre-installed. All but the 2x3 headers for the ICSP pins were installed (and there were no spare headers available). It was a perfect fit for my Arduino UNO-based system. Without a hitch, a compatible board was found. With a CR1220 battery, a FAT32-formatted SD card, and the appropriate software libraries (SD. h, as well as RTClib. h) It's part of the software sketch, and it works perfectly! It makes use of the older DS1307 - Real Time Clock. Keep this in mind. br>br>Overall, it isn't the most recent version (which doesn't appear to be available even from Adafruit), but it works and is well worth the low price! I purchased two and may purchase more in the near future. br>br>Attention: br>br>Disclaimer: I'm a beginner Arduino hobbyist with a lot of enthusiasm. Any errors in this review are solely due to innocent ignorance, and I welcome any constructive educational feedback! The documentation requires some interpretation, so it's only 4 stars.

Lian Keith

| Feb 23, 2021

I know it's compatible with the mega2560 somewhere else, but that's not a very comprehensive answer. In order for the RTC to function, you must connect SDA to A4 and SCL to A5. I'm amazed at how difficult it is to locate that information on the internet! SDA and SCL are the last two pins on the board next to the reset switch, and A4 and A5 are the last two pins on the opposite corner, with convenient solder points right next to each pin. SCL and SDA are also available on pins 20 and 21. Jumpers to A4 can be used on Mega board 21. On the data logger board, A5 is a good place to start.

Melina WALLIS

| May 19, 2021

The board is functional, but I'm having trouble with it. I used "SD" to initialize the SD card. begin()" I discovered that the SPI interface was locked to a different device. Despite the lack of documentation, you can resolve this issue by running "SPI. "end()" is used to release the SPI interface. It took a week for me to figure it out - However, the issue has been resolved!.

Ernesto Osborne

| Aug 13, 2021

This shield arrived promptly and in perfect condition. br>This is an R3 version shield, but it will not work with the MEGA 2560 R3 without some modifications because it lacks an ICSP jack. Also, instead of using the Arduino SD library's default pin 4, this card uses Pin 10 for SD. The SD card will now work with the library after that is changed. br>br>A disadvantage: It will be difficult to use the Mega 2560 with this version of the shield because it lacks an ICSP jack and pins. Other shields do this as well, but none that I am aware of include the RTC. This, I realize, is exactly what the open-source movement is all about. As a result, I don't hold the shield manufacturers responsible. The clock is a plus. br>br> It performs admirably. Automatically writing a date (from the RTC) is not supported by the SD library. You must include a clock call-out. During setup, add a back function to the loop() and correctly associate it. It works very well once that is done. br>Another advantage is that it is R3 compatible, which means the SDA and SCL pins are included. They're also separated into sections, making them simple to use. It's a useful shield, and I've used it in an automatic SD temperature logging sensor project; it works well, and it, along with the clock, helped me reduce the number of shields and additional components. br>br>If the Arduino UNO R3 is used, I would use it again. br>br>Note: If you're looking for a unique way to express yourself, try using the words "creative To reiterate, I do not hold the manufacturer responsible for the negative aspects; this is precisely what the open-source community has created. They were given a source to follow, and they did so.

Landon Wolfe

| May 11, 2021

This was purchased for use with a shield and the rtc. At some point, I may use SSD logging. br>It irritates me that I had to connect sda to a4 and sdl to a5 on my own. I attached the wires with superglue. The entire purpose of a shield is to eliminate some of the wire clutter. In any case, it's a win-win situation. I didn't like the day of the week, but I didn't need it. This allowed me to create a grandfather clock out of an Arduino and a doorbell.

Theodora Goodwin

| Feb 21, 2021

It really works! The shield is quite nice. Excellent value for money! br>It's very straightforward - There's a DS1307 RTC on board, as well as an SD card reader and a small vector board area for soldering in custom sensors. br>br>RTC isn't installed by default - The SCL and SDA pins must be connected before using the github-hosted library "RTClib. " If you don't want to learn how to use I2C communications, this isn't the project for you. br>br>I didn't give it five stars because the pins are flimsy and there was no documentation included, but at this price, I'll probably buy a couple more.

Noa Baldwin

| Jan 25, 2021

This is a good product; I've purchased five so far and have had no issues. To protect the pins, they come with a piece of white stiff closed cell foam. I believe some of the pins on all 5 boards are bent, but not badly, and you will need to straighten them to align with the Arudino Uno board. All 5 worked fine, and I now have two logging data just fine. I was able to find everything I needed on the internet to get this card working for me, so I did not rely on support, but it is nice that HiLetgo provides it. The only reason I didn't give it five stars was because none of the boards came with a battery and all of the pins were bent.

Nora Ruiz

| Sep 22, 2021