However it can still be programmed using the normal Arduino IDE (Integrated Development Environment). So from now on I'll experiment with the "bare bones" board. Further savings (like reducing clock speed) would be overshadowed by the huge overhead of the voltage regulator and USB interface chip. The initial outcome is that, to save power, forget about using a development board. Still, you would expect about 31 mA less than the figure above for the Uno, so that sounds about right.Īlso, with low power consumption I can put the multimeter on the "microamps" range which is more sensitive. Sketch B above only draws 360 ♚ ( 0.360 mA) which is a LOT less. A USB interface chip (for the USB port).This would be accounted for by the fact that the development board has on it: Sketch A above only draws 15.15 mA, a saving of 34.85 mA just by not using the development board. Putting the computer to sleep immediately in the Settings section is probably not the most elegant way to program this, but why not try several different ways to loop your code as this will help you in your learning and often there is no absolute best way, just your preferred way.Using a "bare bones" board saves quite a bit of power. Lots of ways to achieve the same goal, so don't think I was suggesting that sounding the horn from the main loop was necessarily the best way to go but I was just wondering why you were thinking of calling an IRS to sound the horn. Of course you could also think of a logic sequence that calls a horn sound function from the main loop. The function is then finished so it returns to the main loop which then calls the 'put to sleep function' again. When the interrupt is triggered the awake function cancels the sleep and you should then be right back into the 'put to sleep' function' at step 3 which then sounds the horn. So the arduino takes 40 winks in step 2 of the 'put to sleep' function. The 'put to sleep function' 1) enables the sleep mode and attaches an interrupt that will call an awake function, 2) put the computer to sleep, and 3) Sounds the horn. Main loop calls the 'put to sleep' function. Have could try the following logic which nicely follows the tutorial I gave a link to. ![]() refer back to the tutorial for putting the Arduino into a deep sleep. I'm not sure why you would use an ISR for this, just program it in the Arduino Loop - edit - were you thinking of triggering the horn because of a separate button push, or sounding the horn just because the computer is awakened by the aforementioned arduino awakening button press?Īrduino goes back to sleep waiting for next trigger ISR is fired which should trigger horn for 1 sec The web is awash with tutorials on doing just this so I wont repeat, but here is a link to a typical tutorial. either your program code sets up settings like the frequency of the output to your horn upon start up, or your program awaits some communication via serial or I2C etc that triggers the program to set something, and you communicate to the arduino from another computer. Arduino goes back to sleep waiting for next trigger.ISR is fired which should trigger horn for 1 sec.Posted by: I get some advice on how I would go about coding something like this? Again, work flow is this.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |