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 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.

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?).

No surprise. Work and perform without issue.

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.

These are nice displays but easily broken. There is no easy way to mount them and the glass is easily broken.

After some experimenting I came up with the following to use this with the Seeeduino XIAO in PlatformIO. Display GND --> XIAO GND Display VCC --> XIAO 3V3 (not 5V!) Display SDA --> XIAO SDA Display SCL --> XIAO SCL library used: lib_deps = olikraus/U8g2@^2.28.8 example main.cpp with some comments added: #include <Arduino.h> #include <U8x8lib.h> U8X8_SSD1306_128X32_UNIVISION_HW_I2C u8x8(/* reset=*/ U8X8_PIN_NONE); void setup(void) { u8x8.begin(); u8x8.setFlipMode(1); // set number from 1 to 3, the screen word will rotary 180 } void loop(void) { u8x8.setFont(u8x8_font_chroma48medium8_r); u8x8.setCursor(0, 0); // char row, col - not pixel u8x8.println(===============); // if string too long it wraps and flickers u8x8.println( Hello,); // println() advances to next row u8x8.println( World!); u8x8.println( ===============); u8x8.println( test test test=); // <- this will not be shown on the 4 line screen } Since all I am looking for in this display is a simple character output this library will work fine for me. I tried the Adafruit and the SeeedStudio OLED libraries and I assume I never got the device type correct for a few frustrating hours of trial and error and error. I was also able to get the graphics library to work on this using the following constructor: #include <U8g2lib.h> U8G2_SSD1306_128X32_UNIVISION_F_HW_I2C u8g2(U8G2_R0, U8X8_PIN_NONE);

I saw others wonderinf about the address, it is 0x3d. Also I run it at 3.3 V directly powered from the board. No issues.

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.

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

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.