Alternative can be 8 times a MCP23017.
WaWa, I think that Aswin2017 already has the Mega for whatever reason; maybe the expansion from e.g. 40 to 120 outputs was an after-thought. Or maybe the design was not thought through before buying the Mega 
Alternative can be 8 times a MCP23017.
WaWa, I think that Aswin2017 already has the Mega for whatever reason; maybe the expansion from e.g. 40 to 120 outputs was an after-thought. Or maybe the design was not thought through before buying the Mega