I've been leaning working on using and interfacing a microcontroller with an HT1622 + a custom segmented LCD. IMO the datasheet of the IC is very small and left me confused ; is the interface SPI ? UART ? GPIO and PWM (manually) ? . I've searched alot and found several tutorials and github libraries and they seem to not use the SPI feature.
So far (DATA) is MOSI , CS is "CS" , WR is SCLK and RD is MISO ? :-.
Any helpful advice/thoughts would make a world of difference. Thanks in advance.
Note : I've included some of my findings, hopefully someone might add in the missing pieces.