As i was testing my battery with my helicopter, this is not going to be the battery i use, It is a 7.2v 2A Nimh battery pack that i had acquired, as i was putting stuff together and testing my servos, I also wanted to do a quick battery test, so i rigged everything up like it supposed to, i also created a quick motor test on mbed.org to program the uC and get the servos at 90o and get the blades leveled so i can do the motor test.
servos work great with this setup, that test is done, went with out a problem. next was the motor test, so i removed the blades to protect me and the wires. Then i hooked everything up. checked the motor, and the battery connection, perfect no problems. next i hook up the uC control lines and ground (I learned 
). or so what i thought was ground. so i power every thing up. nothing goes, check the battery and all the power, looks good. next i remove the control lines.(or so i thought) checked the voltage from the pwm line, about 3v, looks good. so i use the control line that was being used for the main rotor and hooked it up to 5v nothing happened, so i thought ok maybe my gate voltage wants high enough, (last time it was 5v source and 5v gate and it worked) so i get the brilliant idea of trying to hook it up to one of the power line, a full 7.2v (8.5v fully charged) thinking that should be enough power to get it going ………………guess what ……………
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Monthly Archives: January 2011
Things I forget to do!! lol part 2
Things I forget to do!! lol
Have you ever worked on a project or tried to trouble shoot some sort of complex technical thingy and cant figure out why its not working like it should? If your reading this most of us have some sort of problem like this. Recently I have been working on trying to get my NXP Mbed Challenge up and running and working on the last few hardware requirements. This last week i have been trying to get my servos and motors working together and have started to make some good progress. until i hooked up power. Servos would not move nor did they seem like they were even powered……double checked them with an arduino and they worked. So i put it all back together and tried again, still no movement from the servos, now i start all over again with the trouble shooting, I did this about 3 times tracing out all the wires, doing electrical conductivity tests, the whole 9 yards. After a few hours and a day of rest i went back to it………
re-connected everything back up and tried again…………And this is what I concluded ……
