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Resolved Resolved by EzAng!

Using ADC Ports

is there a possebility to use the ADC inputs for controlling a servo?
i try the micro servo a,d a HDD from ez robot.
that didn work.


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PRO
Belgium
#4  
got error 

Start
> Error on line 1: Missing String Quotes or Invalid Expression at index 0: while ( (
Done (00:00:00.0094850)
PRO
Synthiam
#5  
That’s JavaScript I posted. I’ll never ever post ezscript
PRO
Belgium
#6  
this what i have .

while(0)(true)
while(1)(true)

{
// duplicate this line for other servos

Servo.setPosition(d0, Utility.map(ADC.get(ADC0), 0, 255, 1, 180));


Servo.setPosition(d1, Utility.map(ADC.get(ADC1), 0, 255, 1, 180));


sleep(100);

}
PRO
Synthiam
#7  
lol how did you get that from my example hehe. Here you go...

Code:

while(true) {

Servo.setPosition(d0, Utility.map(ADC.get(ADC0), 0, 255, 1, 180));


Servo.setPosition(d1, Utility.map(ADC.get(ADC1), 0, 255, 1, 180));


sleep(100);

}
PRO
Belgium
#8  
haha i was not far off.but it doesn move the ADC0 servo.
it move head d0 and d1.
i wanted to use ADC0 and ADC1 alone
PRO
Belgium
#9  
i forgot to tel i wanted to use continious servo's from ez robot on port v0 and v1
PRO
USA
#10  
Hi Nomad, how are you and how is your new robot?

EzAng
PRO
Belgium
#11  
hi ezang

waiting for parts.do you have any idea how adc ports work with continious rotation?
PRO
Belgium
#13  
oh does the adc only have 3 volts?
PRO
USA
#14   — Edited
did you read the link I put on?

https://synthiam.com/Community/Tutorials/Using-ADC-Analog-to-Digital-Ports-Commands-and-Controls-16283

Steve said:
Step 1. About the ADC ports.
There are 8 ADC Ports on the EZ-B v4 numbered "A0" to "A7" that you can connect devices like analog sensors. Each ADC port contains three pins...

Ground: (output) located towards the centre of the board.

VDC: (output) The centre pin, regulated at 3.3 volts.

Signal: (input) The outermost pin from the centre of the board which reads the voltage between 0 and 3.3 volts.


The ADC ports are Configurable at 8-bit (0-255) or 12-bit (0-4095) in software.

In an ADC control found in the ARC software, such as "Read ADC", ADC reading intervals can be selected from 100 ms to 60000 millisecond analog values.

Analog readings are from 1 to 255 (0v to 3.3v) in 8 bit mode, or 0 to 4,095 in 12 bit mode.

read on



I have to leave now  - maybe Ptp or DJ can help, sorry
PRO
Belgium
#15  
ezang

yes i have the link

thanks
PRO
Belgium
#16  
Ezang

you cant controle a servo with adc ports.


thanks
PRO
Belgium
#18  
i saw it but you cant controle a servo on a adc port itself.
i wonder would a LED work? on a adc port?
PRO
USA
#20  
Seems like you need a script:

Rich:

# ADC to servo movement
:loop
$value=GetADC(ADC0)
$position = $value/100
$position = Round($position,0)
Servo(D1,$position)
Sleep(250)
Goto(loop)


Or

# / ADC to servo movement
:loop
$value=GetADC(ADC0)
$position = $value/100
$position = Round($position,0)
$position = Map($value, 54, 129, 180, 1 )
#adjusted first two values to read min/max read ADC project, 2nd two for direction (reverse 1 and 180).
Servo(D0,$position)
Sleep(250)
Goto(loop)
PRO
Belgium
#21  
i wanted to use contineous rotation servo's.
PRO
USA
#22  
from NallyCat - @Nomad 6R there is a tutorial on synthiam for that, have a look at " Using ADC (Analog to Digital) Ports, Commands and Controls." by Steve G.


Looks like the one I already gave you - check

EzAng
PRO
Belgium
#23  
i have another question about adc ports.didn want to open another topic.
is it possible to control a LED ,excample on/off ,with an adc port?
i notest a led goes on from 3 volt.