pneumatic_ip_tutorial
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pneumatic_ip_tutorial [2016/03/17 22:05] – joaomatos | pneumatic_ip_tutorial [2016/03/17 22:13] (current) – joaomatos | ||
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**Final Words** | **Final Words** | ||
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+ | {{youtube> | ||
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+ | Original project working: [[http:// | ||
As the original tutorial related , the system' | As the original tutorial related , the system' | ||
- | * The Arduino cannot read accurately the counts of the rotational encoder after 10 seconds (even if the pendulum returns to the equilibrium position , after a while , this equilibrium position will not give 0 as angle , consequently the PD equation will calculate the necessary input in the proportional valve as something different than 5,1V ( voltage that makes no air flow in the valve | + | * The Arduino cannot read accurately the counts of the rotational encoder after about 10 seconds (even if the pendulum returns to the equilibrium position , after a while , this equilibrium position will not give 0 as angle , consequently the PD equation will calculate the necessary input in the proportional valve as something different than 5,1V ( voltage that makes no air flow in the valve ) |
* The Arduino cannot modify 8 ports at the same time to send the binary input to the DAC , so the calculated value by the PD equation will not be the same as the value on the input of the proportional valve. (The best choice is to use a DAC with an I2C or SPI interface) | * The Arduino cannot modify 8 ports at the same time to send the binary input to the DAC , so the calculated value by the PD equation will not be the same as the value on the input of the proportional valve. (The best choice is to use a DAC with an I2C or SPI interface) | ||
+ | * The travel distance of the air cylinder is very short , very often the pendulum will loose control and the air cylinder will not have enough travel distance to reestablish the balance. ( that's why you always have to be taking care of the pendulum to not let it balance too much ). |
pneumatic_ip_tutorial.txt · Last modified: 2016/03/17 22:13 by joaomatos