In SX Microcontrollers, SX/B Compiler and SX-Key Tool, tdg8934 wrote:

I have used 4028 IC's as in the Robolympic circuit and using a PDB with a SX28 and 0.1 caps. I have them going to a custom built LED array going through ULN2003 drivers (20 using 16) and PN200 transistor circuit (7). 
 

I am trying to build the Robolympic circuit to learn how it works and build from it. What I am getting is all 16 x 7 LEDs display "rows" of patterns up and down. Do I have to do something to the SXB code first?

 

See this picture showing what the LED display looks like. 

 

 

I have rechecked all the connections 3 times and see nothing wrong with the wiring. 

 

 

Ideas on where to go with this?

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