Now available from PMD Way are these high-quality HD44780-compatible LCD modules from PMD Way. Two rows of eight 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. 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) Drawing: 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.
