This circuit and the accompanying BASIC program demonstrate how
to interface an old Nokia mobile phone liquid crystal display to a PICAXE
microcontroller. While the complete unit could be used as a stand-alone serial
LCD module, the circuit and program could also be integrated into an existing
PICAXE project – assuming that there are sufficient port pins and memory space
A Nokia 5110 mobile phone was used as the source for the LCD
module. These are identified by type number LPH7366-1 and have nine connections.
Displays from the 3210 and 3310 models may also be suitable, although these
haven’t been tested with the program.
The LCD is an 84 x 48 pixel graphics type with an "SPI" type
serial interface. Table 1 shows the pin assignments when looking at the back of
the module and reading from left to right. Note that the 3210 & 3310
displays omit the "OSC" pin, which isn’t used for this application.