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

Great price per module and all five displays worked properly. However, the modules and 4-pin headers were all placed in a single bubble-wrap bag, then inside a small box. Individual ESD bags for each module would insure the modules did not rub against each other during shipping.

Excellent product

I got exactly what I was expecting 5 very small i2c oled displays and 5 (4 pin breadboard pins). Very pleased with the product, bright, easy to work with and exactly what I needed! All those who complained about receiving tiny displays obviously didnt read the description. These are great for the new Raspberry Pi Pico! I havent received mine yet so Ill have to play around with my Raspberry Pi 4 for now.

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

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.

This is an awesome, tiny, high resolution OLED for any of your micro controller projects. It used the very common I2C bus, and runs on the SSD1306 display driver. 128x32 pixels gives you a nice sharp, crisp text output. Im very happy with these. This is a really good way to add a very compact LCD to your project. No need to add some big bulky backlit LED, go with this instead! I used the Adafruit SSD 1306 Libraries and they worked great. They are low power and bright. For the adafruit library examples, they really are over the top. There is no hello world essentially, so just do a google search for a hello world example for the libraries to get a basic starting point. Also, to rotate the display 180 Degrees, put in display. setRotation(2); in the setup. Basic usage for those libraries are.. display. display() ; display. clearDisplay() ; display. setTexSize(1-3) ; display. setCursor(0,0) ; // origin of text display. print(blah) display.println(-appended to last word blah, then new line ) ; As for the hardware, the displays are nice and small. If you think of your breadboard, they are 4 rows high, then about 12 slots wide. (Thats the entire board.) Voltage range is impressive and seems to operate at lower than 3.3, but Im running it on 4.5V and there are no problems. (Basically, 5v from the wall but through a diode on the arduino). It takes around 5ma. With a watch dog timer and adjustment I bet you could I get a whole pro mini project to run at under 3ma standby while keeping the display going. Refresh time on the display is very fast and cameras dont pick up any multiplexing/flicker. They did not come with headers, but the plated through holes are very well done and take solder well. The holes are pretty snug, which means its strong. It will be hard to desolder these after , so google some tricks on removing header pins to make your life easier!

Is a copy of an Adafruit display and the Adafuit libs for Arduino work with this device. Just note, this is a very very tiny display. For reference the pins are 2.54mm pitch. Cant beat the price for what you get. Just note that I2C is slower than SPI, or high speed parallel so the refresh rate is low, but its still pretty quick.

No surprise. Work and perform without issue.

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.

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.