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LCD TouchScreen SSD1289 has a 16 data bus
Posted:
Sat Feb 04, 2017 9:00 pmby Gonçalo Pereira
This LCD module is 3.3V and has 16 pin data bus, any trick to connect it to an Nodemcu V1.0 or just a normal ESP8266?
Re: LCD TouchScreen SSD1289 has a 16 data bus
Posted:
Sun Feb 05, 2017 1:34 pmby martinayotte
Such LCD isn't suit for ESP, you would need to add I2C or SPI GPIO expanders to have enough GPIOs, but it will be slow as hell to push lots of pixels on the LCD.
I would rather purchase another LCD with SPI interface.
Re: LCD TouchScreen SSD1289 has a 16 data bus
Posted:
Sun Feb 05, 2017 5:56 pmby Gonçalo Pereira
martinayotte wrote:Such LCD isn't suit for ESP, you would need to add I2C or SPI GPIO expanders to have enough GPIOs, but it will be slow as hell to push lots of pixels on the LCD.
I would rather purchase another LCD with SPI interface.
Since I just want to display two large numbers on the display is it suited for me? Is it worth looking for those I2C
interfaces? I've searched for them and I didn't encountered anything, can you point me at some examples?
Re: LCD TouchScreen SSD1289 has a 16 data bus
Posted:
Mon Feb 06, 2017 10:51 amby martinayotte
Look at the MCP23017 for example, 16 GPIOs on I2C. There is also the MCP23S17, it is the same but SPI interface.
There are also PCF8574, which is 8 GPIOs on I2C.