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wolfv
wolfv
  • 101
  • 1
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It's working now. Here is what was missing: A yellow jumper from the micro-controller MOSI pin to the MCP23S17 SO pin. So the read command can to travel from micro-controller to MCP23S17.

enter image description here

It's working now. Here is what was missing: A yellow jumper from the micro-controller MOSI pin to the MCP23S17 SO pin. So the read command can to travel from micro-controller to MCP23S17.

enter image description here

It's working now. Here is what was missing: A yellow jumper from the micro-controller MOSI pin to the MCP23S17 SO pin. So the read command can travel from micro-controller to MCP23S17.

enter image description here

Source Link
wolfv
wolfv
  • 101
  • 1
  • 3

It's working now. Here is what was missing: A yellow jumper from the micro-controller MOSI pin to the MCP23S17 SO pin. So the read command can to travel from micro-controller to MCP23S17.

enter image description here