BoeBot + MSRS + HB-25
I set up a computer-controlled robot using MSRS and the Parallax Stamp using the BSDrive services/differential drive/Parallax cr servos. It works beautifully.
Now, I am trying to do the same thing with a larger vehicle ( a 1/12 Scale Tank). The sensors, camera's, lights, and fire controls all work great. However, I needed to upgrade the power train cause the servo's aren't powerful enough. So, I added a couple of dc motors and the Parallax HB-25 motor driver.
I tested the hardware at the Stamp level using their sample code and that works. So, I have the hardware wired correctly and I have stable communications with the Stamp. The BlueTooth interface also works.
However, .... (there is always a however), I cannnot seem to get the motors to turn via my modified Simple Dashboard. The HB-25 is supposedly a drop-in replacement for the servo's but it appears to have a wider range. The servo -- (stop=750, fwd=850, back=650) and the HB-25 = (stop=750, fwd=1000, back=500).
I am attempting to modify the BoeBotControl.cs file to accept different settings but it is not working out.
Has anyone tried this? Any words of wisdom from the group?
jeff
Now, I am trying to do the same thing with a larger vehicle ( a 1/12 Scale Tank). The sensors, camera's, lights, and fire controls all work great. However, I needed to upgrade the power train cause the servo's aren't powerful enough. So, I added a couple of dc motors and the Parallax HB-25 motor driver.
I tested the hardware at the Stamp level using their sample code and that works. So, I have the hardware wired correctly and I have stable communications with the Stamp. The BlueTooth interface also works.
However, .... (there is always a however), I cannnot seem to get the motors to turn via my modified Simple Dashboard. The HB-25 is supposedly a drop-in replacement for the servo's but it appears to have a wider range. The servo -- (stop=750, fwd=850, back=650) and the HB-25 = (stop=750, fwd=1000, back=500).
I am attempting to modify the BoeBotControl.cs file to accept different settings but it is not working out.
Has anyone tried this? Any words of wisdom from the group?
jeff
Comments
1. The HB-25 requires that the Stamp be on first. Otherwise, it doesn't·reset properly.
2. It is necessary to change to firmware to accept a higher range of·power/
3.·Change the settings and formula in Boebotcontrol.cs to send a wider range of values to the boe bot.
Now, everything works.