I want to build a simple controller that will control three outputs (AC) from three inputs. I could probably do this without using a Micro controller, but I thought it would be a good learning experience. I was originally going to build something more complex that could be expanded, but when I saw the AVR IO I thought it was the perfect fit. Although I would have preferred to keep the relays isolated from the control board with the AC sockets? I have programmed in Basic, C (not lately), C++ (not much), some Assembler in a previous life and numerous 4GL languages. I've also done some electronics in the past, but I'm no engineer. The basic logic for the app is as follows: SW1 ON -> Run Pump 2 until SW2 On, Close Solenoid 1, Start failsafe timer (in case SW2 never goes ON) SW1 OFF -> Open Solenoid 1 SW2 ON ->Stop Pump 2 SW3 ON -> We've lost containment, so shut everything down and leave it off. Sound alarm. If failsafe timer reaches 0 before SW2 come on, shut everything down, possible switch failure. That's the VERY basics, I just wanted to know if the board will do what I want? I'd also appreciate the basic programming steps, Create hex with Bascom, load it with JTAG? Any other bumps in the road? Any better ideas for a simple development board. Any caveats?
AVR IO (Olimex) questions
Started by ●October 24, 2006
Reply by ●October 25, 20062006-10-25
I used the AVR IO board for light (incandescents) switching. Works great. The shipped processor is small in memory size so I'd stick with C, there a many many tutorials on the web, just google/yahoo your question, or visit avrfreaks.com the people on the forum are very helpful. You will need a method to program the board, I use the STK500 available from Atmel (digikey is a source). But there are other options available (omex has some). Use the GNU C compiler. Learn how to use it, again avrfreaks.com is a must. On Oct 24, 7:56 pm, "Bill Stock" <m...@privacy.net> wrote:> I want to build a simple controller that will control three outputs (AC) > from three inputs. I could probably do this without using a Micro > controller, but I thought it would be a good learning experience. I was > originally going to build something more complex that could be expanded, but > when I saw the AVR IO I thought it was the perfect fit. Although I would > have preferred to keep the relays isolated from the control board with the > AC sockets? > > I have programmed in Basic, C (not lately), C++ (not much), some Assembler > in a previous life and numerous 4GL languages. I've also done some > electronics in the past, but I'm no engineer. > > The basic logic for the app is as follows: > > SW1 ON -> Run Pump 2 until SW2 On, Close Solenoid 1, Start failsafe timer > (in case SW2 never goes ON) > SW1 OFF -> Open Solenoid 1 > SW2 ON ->Stop Pump 2 > SW3 ON -> We've lost containment, so shut everything down and leave it off. > Sound alarm. > > If failsafe timer reaches 0 before SW2 come on, shut everything down, > possible switch failure. > > That's the VERY basics, I just wanted to know if the board will do what I > want? > > I'd also appreciate the basic programming steps, Create hex with Bascom, > load it with JTAG? Any other bumps in the road? > > Any better ideas for a simple development board. Any caveats?
Reply by ●November 4, 20062006-11-04
If you are good with basic then stick to Bascom. It is not an interpreted basic, it compiles down to a hex file just like assembler, in fact it is more of a macro assembler than a basic as we used to know it. The resulting HEX or BIN file will be as small or smaller that anything that C can produce. The Bascomm IDE supports several hardware programmers, and will get you started much quicker than C I use them both, so no prejudice here. GK <rjames.clarke@gmail.com> wrote in message news:1161771878.714858.308800@f16g2000cwb.googlegroups.com...>I used the AVR IO board for light (incandescents) switching. > > Works great. > > The shipped processor is small in memory size so I'd stick with C, > there a many many tutorials on the web, just google/yahoo your > question, or visit avrfreaks.com the people on the forum are very > helpful. > You will need a method to program the board, I use the STK500 available > from Atmel (digikey is a source). > But there are other options available (omex has some). > > Use the GNU C compiler. Learn how to use it, again avrfreaks.com is a > must. > > On Oct 24, 7:56 pm, "Bill Stock" <m...@privacy.net> wrote: >> I want to build a simple controller that will control three outputs (AC) >> from three inputs. I could probably do this without using a Micro >> controller, but I thought it would be a good learning experience. I was >> originally going to build something more complex that could be expanded, >> but >> when I saw the AVR IO I thought it was the perfect fit. Although I would >> have preferred to keep the relays isolated from the control board with >> the >> AC sockets? >> >> I have programmed in Basic, C (not lately), C++ (not much), some >> Assembler >> in a previous life and numerous 4GL languages. I've also done some >> electronics in the past, but I'm no engineer. >> >> The basic logic for the app is as follows: >> >> SW1 ON -> Run Pump 2 until SW2 On, Close Solenoid 1, Start failsafe timer >> (in case SW2 never goes ON) >> SW1 OFF -> Open Solenoid 1 >> SW2 ON ->Stop Pump 2 >> SW3 ON -> We've lost containment, so shut everything down and leave it >> off. >> Sound alarm. >> >> If failsafe timer reaches 0 before SW2 come on, shut everything down, >> possible switch failure. >> >> That's the VERY basics, I just wanted to know if the board will do what I >> want? >> >> I'd also appreciate the basic programming steps, Create hex with Bascom, >> load it with JTAG? Any other bumps in the road? >> >> Any better ideas for a simple development board. Any caveats? >
