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by otani
Wed Jan 21, 2015 4:02 pm
Forum: Other programming languages
Topic: Lazarus and MCP23017 I/O expander
Replies: 10
Views: 3260

Re: Lazarus and MCP23017 I/O expander

To: Le_Ze I don't have MCP23017, however please read my sample program of MCP9808 temperature sensor. I have confirmed with Lazarus on Rpi.  I2C Read/Write are handled by fpread() and fpwrite() not by shell command. I2C address must be changed to $20 for MCP23017 (A2,A1,A0=0).  Just changing fpwrite...
by otani
Fri Dec 13, 2013 5:36 am
Forum: Other programming languages
Topic: free pascal / lazarus
Replies: 110
Views: 57501

Re: free pascal / lazarus

TOpenglControl In my environment, an error always occurs at a start up of TOpenglControl. Is anyone using OpenGL component ? OpenglControl always rise a error "gdk_gl_context_share_new no visual found". Error position is File: GLGtkGlxContext.pas Line: 471 Function: gdk_gl_context_share_new() Versio...

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