alphapepper
USA
Asked
— Edited
Hi folks,
I've searched this forum and found some information related to my question, but I'm still experiencing some problems.
The vertical on my pan/tilt camera set-up is having some problems. It still bobs and flops up and down. Sometimes it locks in an up or down position. I don't know if the blue servo just isn't strong enough, or if there's a problem with my set-up.
I replaced the horizontal blue servo with one from the EZ kit, because the first seemed too flimsy. The horizontal tracking for face and color works great.
I uploaded my project file in-case anyone has time to investigate. But it seems fairly simple. I attached a picture of my set-up too. Many thanks!
Rich, it look like the MG90's are size wise the same as the blue9gs but have metal gears. Would you say the size is about the same? Do you power all your servers via an external source?
I would agree with you, pan works great, tilt is a little weak. BUT.....
I took a fresh start at the Pan/Tilt camera controls, re-tested the servos for centering and re-adjusted the grids via a ruler and low and behold my little bot is tracking my face and blue wire guard and motion like a champ.
Redoing the grid layout helped a TON. Eyeballing it I thought I had the grid in 3rds but when I used a ruler I could see I was very uneven. I vote for AutoGrid in the next release
MG90s are the same size, give or take 1mm. I swapped mine with no problems and they went in a tight space.
Setting up the camera will help a lot with tracking, as will servo speeds. Mine are set to 3 which makes it smooth but experiment, you may need 2 or 4 or maybe something way different.
You could just power the blue ones with 6V to see if that helps (if they go bang don't blame me though, I haven't tested or looked them up to see their voltage ratings).
Yes, all of my servos are now externally powered to save from browning out. It's a little more work, a little more wiring and a bit more hardware but it's worth it in my opinion.