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

I have been trying to make this work without luck. Seems device is detected (in 0x3C address) but no text/backlight on screen. Tested the 5, same result ....... maybe I am missing something (Will update in case this works). ———————————————- UPDATE: I used Adafruit library and all screens work flawesly, really happy with results

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 use these with TinyPico boards using MicroPython, and they work great. The screen is bright, very responsive, and perfectly readable. It’s easy to display animations on it without it lagging. You can write text or control it per pixel, draw lines or rectangles, fill areas, and scroll. Im using these with the MicroPython library found at stlehmann/micropython-ssd1306 on GitHub. Theres also an Arduino library named ssd1306. Im glad to have found these at such a low price! A similar screen is available at Adafruit with the same dimensions, same SSD1306 driver chip, but with SPI communication instead of the more convenient I2C. They sell it at $17.50 for just one screen, more money than for *five* of them here. Im going to add those to most of my projects now, this is a much better way to display whats going on than using blinking LEDs.

Worked well. The example code in Arduino IDE for the Adafruit SSD1306 Library worked and provided a start.

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.

If you have been working with the other 0.91 square OLED modules, it is reasonable that these advertised 0.91 OLEDs would be at least the same size. WRONG, they are HALF size. False advertising and a real rip-off. I suggest you dont buy these.

Would have give 5 but one of them was cracked.

These screens are very easy to use. Can not give full 5 stars since the I2C address is not configurable. Otherwise, these are a great addition to a project.

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

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.