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

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

I attach them to a mkr 1010 shield between the headers and use the adafruit oled library. Photo of a well monitor attached. This has, wifi, a real time clock, a watch dog timer, an oled display and a SD card under the side of the display. It is also connected to a Blynk mobile app for monitoring and control. The oleds begin to dim after 6 months or so of use. Best practice is not to have them on all of the time. I plan on adding a small motion sensor that turns the display on or off. .

Want to push your project over the edge? These little boards were easy to setup and are really the cherry on top to a project. I used them to display the ip address of the device. But if you use size 1 font you can fit 3 rows of text, so I added two rows as basically a serial monitor to show statuses.

The first two worked. I havent tried the remaining.

Was a little nervous buying them reference the price, but took a chance. The silk screening was very nice. Nice bright blue for the board, and bright white for the lettering. Each OLED came with a header. They fit very tightly. Once I connected the headers with the board with out soldering, I was able to hold the board upside down by the headers and they did not come off. (still kind of new to this, so dont judge me), soldered at 433 soldered perfectly. No burning, warping, or discoloration on the board, the heasers did not melt (make sure you use flux, makes a world of difference. Nice bright images even in full light. Was kinda mad when I first saw the screens, they looked all messed up, but saw that there are screen protectors on them. Nice little touch for a cheep priced screen. Ill buy more just to have some laying around. I got them up and running 09/29/2021. Now lets see how long they last.

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.

Bright. All worked out of the box. ssd1306

The screen is evenly aligned, well glued. This item looks better than I was purchasing from other vendors before.

These are great value. Just be aware they are very small. Until you get one in your hand, its hard to convey how diminutive they are. Fortunately, they are very crisp and bright

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.