diymore 2.42 OLED Digital IIC I2C SPI Serial 128X64 Pixel LCD Screen Display Module SSD1309 for DIY Electronic (Green)

If you are using this for I2C beware. You may need to force it into i2c (not SPI) mode. I never got mine to work for more than a few mins and thew it in the garbage. I got another one without SPI support that worked the first time.

Great oled display for Small gadget. One of the best oled you can find with 128x64 resolution. It works with luma.oled python library without hassle. Be aware of 3.3V vdd. This module does not have voltage regulator.

Working on some projects with a Raspberry Pi Pico using a ported SSD1306 library. My project required I2C communication and I had some difficulty at first. I validated the OLED worked via SPI, so after a bit of fiddling I figured out the combination: 1. Move R4 resistor to R3 2. Bridge the R5 pads (0 ohm resistor, solder bridge or wire will work) 3. Connect the RES pin to source voltage (connected to RUN pin on Pi Pico) 4. Connect the GND, VCC, SDA, SCL lines normally Step 3 wasnt documented anywhere I could find. Figured it out after some Googling and trial and error. After all was said and done, I was able to run this OLED at 3.3v and 5v via SPI and I2C. I tested I2C up to 800 kHz (didnt try higher) and it worked great. I dont know if running it out of spec will kill it faster, but I was impressed with the variety of options that worked. The display refreshes just a tad slower than the smaller OLED displays I have, but thats not a knock against it. I have the green and blue versions and both look amazing and perform great for my use case. As someone else said, the pins are labeled in a weird way, but its easy enough to figure out what goes where. Would definitely get more if needed.

Works just like it ought to. Decent build quality too.

As advertised. Integrated it into my project today. Thanks.

If you have a lot of pixels on on a line lit, it is noticeably dimmer than when there are just a few pixels. For instance, the descenders of y and g are significantly brighter than the body of line of text. Not a deal breaker for me, since I havent found this size of OLED display anywhere else.

Does the board have a voltage regulator that will accept 5V? Or does it just kill the SSD1309 controller that runs at 3.3v? At least put a disclaimer on the ad that says attaching to 5V for 1 second destroys the controller.

I used the Adafruit_SSD1306 library with a Moteino M0 board and it worked with no issues. It is setup to work with SPI by default, which is a little confusing because the board is labeled for I2C. Luckily several of the reviews pointed out that discrepancy so it was no big deal. I used hardware SPI and wired SDA->MOSI, SCL->SCK, GND->Ground, VCC->3v, and the remaining 3 pins to whatever digital output pins you want. I also modified the Adafruit example sketch to use hardware SPI (the sketch defaults to software SPI). So the initialization line I used is as follows: Adafruit_SSD1306 display(OLED_DC, OLED_RESET, OLED_CS); The display is nice and bright and daylight readable. I plan to buy many more of these in the future. Great display.

These suffer from OLED burn in if used too long. Here is my display after about 6 months of displaying numbers. Note the small numbers burned in.

Had a little trouble getting it to work. Support was quick and efficient. Screen works. It’s bright and crystal clear. Just bought a second to duplicate my project with a different colored screen.