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0.86 inch display

I have a 0.91 inch display with a 4 pin I2C connection. I then realised that I needed to use a 0.86 inch display with the connector in the above image. I have searched on google on this but nothing has come up. Are there any suggestions on how to connect this? Below is a part of the datasheet if that helps.

enter image description here

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  • \$\begingroup\$ What are you trying to connect it to? \$\endgroup\$ – User323693 Feb 9 at 18:02
  • \$\begingroup\$ Where is the part of the datasheet with the contact table? \$\endgroup\$ – Ariser - reinstate Monica Feb 9 at 19:49
  • \$\begingroup\$ This looks like very common 14-pin display with SSD1316 driver. The driver datasheet is all over the web, although pinout can be manufacturer-specific. Generally you need 2 to 6 external capacitors and pull-ups for I2C. If you are asking about physical connection, then from the picture it is 0.62mm pitch FPC. I am not aware of ready-made connectors with this pitch, so you might have to make suitable pads on PCB and solder this cable directly. \$\endgroup\$ – Maple Feb 9 at 19:55
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If you need a connector, the 0.62mm pitch connector is an oddball, apparently only available from a couple of Chinese manufacturers, eg. Wenda LW06121. Suggest you ask the display supplier to source them for you. They list similar connectors for a very reasonable price. However the datasheet refers to "Soldering Type FPC" so it looks like it's mainly intended to be soldered to the PCB directly (and being single-sided that's not a problem).

Electrically, you can refer to the full datasheet, which is pretty complete but does not have a reference schematic, plus the driver chip datasheet, plus this demo circuit schematic:

enter image description here

As you can see, there's a couple of charge-pump capacitors C1/C2, some bypass capacitors, a resistor to set the OLED current, and the usual pullup resistors on the SDA/SCL I2C data and clock lines.

There's also demo code available.

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  • \$\begingroup\$ The flatflex is apparently meant to be soldered onto PCB. No need for obscure connector. \$\endgroup\$ – Chupacabras Feb 9 at 21:04
  • \$\begingroup\$ @Chupacabras good point, I'll edit the answer. \$\endgroup\$ – Spehro Pefhany Feb 9 at 21:12
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Find a datasheet for your specific display module. These 128x32 modules come in different variants with pinouts capable of SPI, IIC and other communication protocols. The datasheet for those usually contains a reference breakout to each available mode with capacitor values and recommendations.

In my project I’ve used one 128x64 module with 30 pin flex cable. And breakout was rather complex. I would not recommend using dayasheet of any other modules even if they look similar as recommended breakout schematics and component values can be quite different.

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