so this is my first robot it has (4 servos) 3 for three legs and 1 servo that will rotate the ir range finder a arduino for the brain. it is no ware near done yet the chassy is almost there now it is time to learn the electronic side of it
wen it is done i would like it to avoide obsticals and chase the cat to
Control method: autonomous maby bluetooth to pc latter down the track
1st off…are you powering all the servos from the Arduino? That would explain the resets because it simply can’t supply that amount of current. You have to power the servos using an external power source. Also make sure that the grounds (external + Arduino) are connected.
And you don’t need an H-bridge to control servos. A servo allready has an H-bridge built in (unlike DC motors).
I believe you’d typically use 4 1.2V NiMH batteries (1.2V * 4 = 4.8V). You may wanna find out what the (peak) current draw of your particular servos is, and make sure the batteries can supply that much current.
On this page you can see the current draw of various popular servos. Yours may be there…
But there are lots of ways to power your servos…wall adapter, 9V battery with a voltage regulator…What did you have in mind?
thanks agean i was thinking of useing 9V battery with a voltage regulator as i have a few 9v battery clips laying around and it will be lighter to carry on the bot anyway you have given me a lot to think about now i appreciate it i hope i will have this finished very soon will keep on updating here as i go have a good one
Well i have being trying for days now to get him to walk but the logic behind getting all three legs walking in sink is a bit beyond my current skill level so i will come back to him oneday thanks for all your help i would not have gotten so far without it. I have started a new robot project with 6 legs i will upload some pics ASAP.
