Now available from PMD Way are these time-saving HD44780-compatible LCD modules from PMD Way. Four rows of twenty characters, with green text on a yellow background or white on blue. They are 5V tolerant and perfect for your Arduino or other projects. These LCDs have been fitted with the adaptor and a PCF8574 I2C backpack interface, allowing you to use these on the I2C bus without any soldering - just plug and play to the four wires on the backpack. We may send one of two versions of this device - the difference is the controller IC. If you have the PCF8574T. the default I2C bus address is 0x27. If you have the PCF8574AT the default I2C bus address is 0x3F. A jumper on the back controls power to the backlight, and a contrast potentiometer is also fitted. No soldering is required, modules are fully assembled. Click here for packs of five. Free delivery, worldwide. More information: An Arduino tutorial Alternate Arduino library which allows for custom LCD characters (Thanks Geoff!) Raspberry Pi tutorial with the same I/O expander. PCF8574 datasheet (.pdf) Don't forget to check out our full range of display products if this doesn't meet your needs. And as always, all orders receive free delivery. And remember ... if you: can't find what you need not sure what to order want a bulk deal need technical support or just want to have a talk ... Please email us via [email protected]. To keep up to date with new products, news, tutorials and more - we're on x, Facebook, Instagram, threads, reddit, and instructables.
