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

An exact replacement for one that was DOA in a meter that I received.

After some experimenting I came up with the following to use this with the Seeeduino XIAO in PlatformIO.Display GND --> XIAO GNDDisplay VCC --> XIAO 3V3 (not 5V!)Display SDA --> XIAO SDADisplay SCL --> XIAO SCLlibrary used:lib_deps = olikraus/U8g2@^2.28.8example 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);

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.

This will work nicely if I stack my pi's in a cluster, since the height is about what I'd have between pi's 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 I'll make sure the text is more relevant to what I want.I had to turn down the contract on the picture because it's a bright little thing, and was washing out the picture otherwise.I didn't 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 couldn't find the manual referenced in the description. Turned out a few minutes on google got me the right instructions for a Pi though. That's the great thing about the pi is the community support.I'd be happy to buy them again if I found a need for more than 5 (cluster expansion maybe?).

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.

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..

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.

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!

Perfect, and some time later all still good.

fait son taf, eclairage ok.

Os displays chegaram partidos e inutilizados

Il display viene spedito con una scatola contenitiva con spugne per non danneggiare i componenti.Lcd molto nitido e di facile programmazione.Unica pecca sono molto fragili soprattutto negli angoli lcd

This is a 128 x 32 pixel oled display. Each pixel lights up, no need for a back light. Some soldering will be needed as it has no header strip. I soldered a 4-pin header to mine to allow it to plug into a bread-board. I started using it on an Arduino copy interfacing to it in C++. It worked fine but the Arduino has no real-time clock which was my chosen project. So I moved it onto an old Raspberry Pi (see image). That also works fine but I had to learn Python!