I’ve been using Arduino libraries designed to interface with Holtek HT1632c that drive 32x8 led matrixes and in my attempts have been successful in using them. Now I would like to have two matrixes that I would like to cascade in a 32x16 matrix.
The goal is to be able to light an individual LED anywhere on the board with a single x & y reference. So whether it is (0,0) or (15,31) the library can determine which board it needs to light up without me having to add in a piece of code that differentiates which board it uses.
From my understanding of the data sheet I’ve to enable one as a master and the other as a slave. Trouble is that if I do (I think I’ve done this correctly) then both the led matrixes fail to work. There is no issue with the hardware setup as the sketch will work if I was writing to each individual at the same time.
Here is an edit of an existing library I intend to develop into my own personal library, if someone could provide a bit of guidance in where I’m going wrong in the way I’m setting up each chip that’d be great.
ht1632cv120.pdf (216 KB)
HT1632_Test.ino (171 Bytes)
HT1632.cpp (4.35 KB)
HT1632.h (3.67 KB)