5 Pieces I2C Display Module 0.91 Inch I2C OLED Display Module Blue I2C OLED Screen Driver DC 3.3V~5V(Blue Display Color)

These things are quite nice, especially for the price. As you can see in the pictures, I created a snap-on bezel for mine to make for a cleaner prototyping experience (file available at thingiverse, search for thing 4768895). The AdaFruit SSD1306 Arduino driver works great for these modules. You can also control with any I2C device, if you read the datasheet for the SSD1306, available on the internet. Make sure the copy down the specs from the description (or print) and keep with the parts for future reference. You can power and control this from 3V3 or 5V due to the integrated regulator... quite nice.

Would have give 5 but one of them was cracked.

This will work nicely if I stack my pis in a cluster, since the height is about what Id have between pis anyway. Took a bit of fiddling to get the adafruit library to install, and as you can see in the image some extra control characters display from the example, but when I use it Ill make sure the text is more relevant to what I want. I had to turn down the contract on the picture because its a bright little thing, and was washing out the picture otherwise. I didnt mind not having the headers installed. While headers are nice at this breadboard stage, the other three I may solder wires to, and just have them end in plugs I can attach to the i2c bus. I think it makes sense for a bulk seller like this to omit the headers. Finding the address was trivial, but I couldnt find the manual referenced in the description. Turned out a few minutes on google got me the right instructions for a Pi though. Thats the great thing about the pi is the community support. Id be happy to buy them again if I found a need for more than 5 (cluster expansion maybe?).

there are no headers soldered to the boards. i had to go out in the rain to get headers for $12 to solder them myself which adds about 80% costs to the item. there is also no manual for this product. the product is supposed to support 3.3v to 5v as claimed in title, but in fact it only supports 5v. i wasted a couple hours to find this out. the product works but it is very inconvenient to make it work.

Good displays - all set to 0x3C i2c address. Came without pin headers soldered, which was perfect since I needed a locking connector, not header pins. The headers are in the bag so if you want them just need to solder them on. I hope more white displays are in stock soon!

There is no documentation at all for these devices. It turns out that the Adafruit libraries work just fine IF you know that the IC2 address is 0x3C and change it in the examples. The brightness is just fine and they are quite cheap, but they are incredibly small.

I received these two days ago. The order was filled very quickly and the packaging was very good. There was no visible damage to the box and the displays were wrapped in bubble wrap. Unfortunately only two of the five displays worked. The first display I tried would not work and I tried another and it worked. I contacted Amazon after I completed the testing and explained the problem. The agent I chatted (Crystal) with was very professional and agreed to send out a replacement of another 5 displays. The replacements arrived the next day. Unfortunately only two of the five replacements worked. I now have 10 displays but only four are functional. Very disappointing. The service from Amazon was outstanding. The product is very disappointing and I would not recommend.

ill admit i didnt pay attention to the size in the description, they looked much larger in the photos especially for what they were displaying on the example. however they are about the size of a fingernail. not much use i can get out of them but ill keep them since they were cheap

Bright. All worked out of the box. ssd1306

This I2C Display Module work with no problems for the Arduino project I was working on. I personally like the Blue color LED it was easier for myself to read in any of the lighted conditions I was using this module in. There is plenty of online help and libraries for this unit just make sure you have the correct numbers for this display module when searching.