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 am using an ESP8266 with ESPHome. This was very easy to wire up and configure. ESPHome has great documentation on their website on how to setup font sizes, and to write values/images.

The first two worked. I havent tried the remaining.

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

Not sure if the product was changed since some of the reviews, but the ones I got worked fine with IC2 and 3v3 on my Raspberry Pi. Also, mine came with headers, but I had to solder them myself. I prefer that, since it makes them a lot more flexible. Just be aware. To the person complaining about a lack of a manual - common man. Its a an electronics component, youre going to need to google your specific application. Thats true for basically every electronics component ive ever ordered.

3 were duds. 2 worked with ssd adafruit. Thanks to good comments here that led me to finding right drivers

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. .

Tested them with the Arduino sample sketches after downloading the corresponding libraries and they worked. 5 minutes from opening the package to getting something on screen.

If you need a small display for your Seeed Studios, Adafruit, or Arduino Microcontroller or Raspberry Pi / Pico, this one is bright, 3v3 compatible, and easily driven with i2c using an SSD1306 library for Arduino/C or CircuitPython. 128x32 is enough to get four small lines of text for status reports or messages. I powered these with a Seeed Studio Xiao. I used the Adafruit Library. So compact you could make a wearable name-tag or display.

Would have give 5 but one of them was cracked.

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.