Good morning,
i need to drive an equipment which uses a DB37 connector.
I have the pinout of the connector and i can see that i need 2 analogic output, from arduino to the equipment (0-10V). On the remaining pins i need to transmit digital signals (0-5V).
Is it possible to use Arduino for this job ?
Best regards,
Andrea
With additional hardware this is possible.
I'm pretty new to arduino. Could you please detail which additional hardware is needed? Thank you
What do you mean by '2 analog output' ?
What job?
I'm pretty new to arduino. Could you please detail which additional hardware is needed? Thank you
Tells us more about the project to enable us to tell you more. I guess you might need some kind of DAC but it might be done with simple R-C-circuit and a PWM pin.
Tell us what kind of device it is, what signals you identified, what functionality you want to achieve, etc.
I make you a simplified example of what i need to do.
I have an equipment, which should comunicate with arduino.
I have 6 pins, each of them carry a signal of value of 0V or 5V.
For example
pin1-->5V
pin2-->0V
pin3-->5V
pin4-->0V
pin5-->0V
pin6-->0V
The six pins constitutes a binary sequence 505000, this binary number corresponds to decimal 40. Input for arduino will be "40". Now, i need to perform this operation: 40*0.144=5.76.
Finally, i need that pin7 will provide an output of 5.76V
I need to perform similar operations, but with a larger number of pins, so i need to use a db37 connector.
Thank you for your help
Andrea
40*0.144=5.76
That's 6 bits to reach (almost) 10volt.
No Arduino needed.
Can be done with a simple "R2R ladder" and an opamp to increase voltage to 10volt.
"A larger number of pins" doesn't mean anything to me.
Be specific.
Leo..
@Leo. I gave you a simplified picture of what i need to do, as i felt that more details are not needed.
I'm sure that i need to use arduino, as i have to elaborate input from the pins in a more complex way. Moreover, i need to redirect the output also on a ethernet controller...such details are not needed now.
Thank you for your help.
Andrea
So how many bits (or bytes) do you want to convert to a single voltage.
Leo..
I have 2 groups, each composed of 6 pins, which which needs to be converted to 2 single voltages.
Thank you
10volt in 64 steps (6-bit) is a ~156mV resolution.
Ir seems that an 8-bit PWM output with simple RC filter followed by an opamp with 2x gain is more than enough.
First step would be to convert the six bits into an 8-bit value that can be written to a PWM output.
Leo..