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mbed robot arm or biped hack?

Topic last updated 03 Sep 2010, by Igor Martinovski. 1 reply
jim hamblen
03 Sep 2010 . Edited: 03 Sep 2010

Has anyone done a robot arm or biped project with mbed? I would think it should work as long as it only has 6 or less RC (PWM) servos. Some of the humaniod robots have 20 or so servos, so I guess that would be a problem. Here are some I have seen available without the control board. There are probably others I should look at, if so let me know. I have seen some toy arms and bipeds, but I was thinking of going for the ones with RC servos so that I can repair them when students kill them.

Lynxmotion also makes a great assortment of aluminum RC servo brackets and mount hardware if you ever need some. They call it the servo erector set.

http://www.lynxmotion.com/p-683-al5a-arm-no-electronics-kit.aspx some videos at

http://www.lynxmotion.com/driver.aspx?Topic=oldvideos#arms


http://www.lynxmotion.com/p-532-biped-brat-no-electronics-black.aspx - see the video lower on the page

Igor Martinovski
03 Sep 2010

Lack of PWM is not too big of a problem..

http://www.nxp.com/#/pip/pip=[pip=PCA9685]|pp=[t=pip,i=PCA9685]|

http://www.maxim-ic.com/datasheet/index.mvp/id/4539