WayinTop Real Time Clock Kit with Tutorial for Arduino, DS3231 AT24C32 Clock Module + Micro SD Card Driver + Nano V3.0 Development Board + OLED 128X64 Display + Buzzer + Breadboard Jumper Wires

Looks like there are a lot of negative reviews just because instructions didn't ship with the module. I figure at some point the seller added a link to the instructions on this page, so there you go. I've been using this board and it works fine, just as advertised. If you have zero experienced with Arduino, I suggest you watch some tutorials and try some simple projects like the LED blink before you try to assemble something more complex like this kit.I must say the OLED display is very nice, super sharp and amazing contrast.

I learned more from this than anything else I've ever done with Arduino... How to use a real time module, how to user an OLED screen, how to communicate with (such as the aforementioned) over serial connections, SPI/I2C, plus it's my first nano board. Mine even came with an SD-card breakout board not used in the tutorial, now I can play around with that too, as well as a couple of extra buttons, lots of extra dupont wires.The code in the instructions is a great starting point for tinkering. I changed the date format and switched the temperature to display in Fahrenheit instead of Celsius. Next, I'll put a few of those buttons to use and make it more user friendly to set the time... Perhaps add a calibration offset for the temperature. Etc etc.NOTE:The instructions are right here on the store page under "Technical Specifications", attached as a .pdf file. Download the .pdf, take a look, and if it looks like fun I say go for it!

I did assemble and get this kit working and did enjoy making some modifications to the software to reformat the text display to be bigger for my old eyes. However, there was no battery included in the kit as stated. After contacting the seller they did issue a credit of an amount almost sufficient to pay for one...and they did it quickly (given time difference to working hours in Shenzhen). Also note the documentation says to use an A123 battery which will obviously not fit here. This uses a CR2032 battery. As per other reviews, the parts did not really fit on the breadboard that was included so I had to realign to get it to fit and that was successful. Unfortunately, however, the breadboard was slightly warped and, therefore, it was very, very hard to get the nano into the sockets and even the wiring was difficult to insert into the board. I had to use a needle-nose pliers to get them in. Eventually I did that. The buzzer is very, very weak and almost sounds like a cat in distress (although at low volume). I removed the code for the buzzer as it was too annoying. The worst part of the project, however, was the OLED failed after a couple of days. I had another kit with a different brand OLED and swapped them out and it was clear the part from this kit was at fault. It did not work in this setup or in the other whereas the one I had from the another vendor worked fine in both places. That was strike three for me. I think the quality of the parts they were using was poor. Not too surprising, actually, for these things but I had great hopes that once assembled into a difficult breadboard, eliminating the buzzer and ordering a battery, I would be done. But when the display fails all you really have is a bunch of spare parts. Thanks to Amazon fulfillment services, however, I was able to get a refund so I can try again, albiet probably not getting anything from this vendor, sadly.

The kit came on time and had all the components as advertised. The instructions were not very clear. The breadboard was low quality and didn't seem to fit many of the connections very well. I was able to get the clock to work by finding other programs/instructions using the same components on the web.

As others have mentioned, the tutorial is basically one actual page, the software is buggy, the battery doesn't match the holder, the breadboard is hopeless. WOST OF ALL, the SD card adapter is NOT MENTIONED in the documentation. Look at the photos. It's not even shown in the completed circuit. Too much debugging and research.

First Kit I got the OLED did not function. I worked on it for several days trying to make the software function, which is "included" in the tutorial. With the second kit, I have been able to at least get something on the OLED display. The tutorial is next to useless in explaining much about the sketch and there is no Direct cut and past of the sketch so you have to piece it all together leaving room for errors and missed lines. I was under the impression that this was a simple project, but it is far from that.

I just started learning about Arduino and found this kit to be a great first project involving an OLED display. The kit showed up in a nice box with everything included except the tutorial. I emailed the seller as mentioned in the product description. However, I did not want to wait and started on my own with sketched from different sources. Learned a lot and got some to work with the OLED connected to an Arduino Mega, see pictures analog and digital clock. Could not get the Arduino Nano from the kit to communicate.The very detailed tutorial arrived the next day and it was easy to follow them step by step. Now I got my first Arduino Nano running with no problem. Great kit to learn.Update: learning and having fun....connected a cheap $10.00 USB Logic Analyzer to the SDA and SCL of the Real Time Clock and now I can actually see how serial signals are coded and transmitted. Awesome.

I got the Manual from Seller. If you copy and paste the code from manual to IDE, retype this part of the code:charTime[] =" : : ";char Calendar[] = " / /20 ";char temperature[] = " 00.00";Othervise display will show some strange readings.