
leonardo46
Italy
Asked
I'm using hitech pwm servos with ezbv4. The movement range is 180 or more, but ezb software doesn't allow the whole range. Can Synthiam make a plug-in for configuring the range as required ?
Related Hardware EZ-B v4
Here's info for ezbv4 pwm timing .1=560 uS, 90= 1360 uS, 180 =2120 uS. I don't know if this is a general standard used by servo producers. Hitec servos HB805BB require (hitech specs), for 0-180 range, 600-2400 uS.
Ok, just tested a Hitec servo HS-422 and an ez robot servo using an ssc-32... Yes crude (as mentioned I do not own an oscilloscope) but now you know why other servos do not have a full 180deg range when using an ezb4 or ioTiny...
Hitec HS-422 servo Full 180deg range is 500us - 2500us (only approx)
EZ Robot servo Full 180deg range is 550us - 2200us (only approx)
my timings were measured with accurate Tektronix digital oscilloscope.