trouble in connecting APM and raspi

Hi,currently,I am using mavproxy which runs on raspi to control my quadcopter, I set up the environment for raspi and connect it to  the APM yesterday ,every things seems ok,i can see a lot of data of APM on rasbian and APM response well to the commands i typed in ,so i tried to controll the drone by raspi,but unfortunetly,when i type" rc 1 1000",there is no response,why?

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  • Developer

    I assume you are using RC1 as your throttle. The default config for APM is RC3 as throttle, unless you have reconfigured it.

    1000 is equivalent to 0% 1500 50% and 2000 - 100% if that's how you have calibrated the channel. normal is from 1100-1900

    • It seems that the problem is solved, now i can put the pwm to the motors freely

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