phone - bluetooth module - the arduino - step motor hall sensor, fertilizer rate Q ~ mobile input, distance L ~ stepper motor to accept hall sensor transfer wheel speed n1 ~ step motor to adjust speed unchanged fertilizer applicator Q,,, Fertilizer applicator Q=L/n2 (1.256 * * 1/60)
N2 stepper motor speed r/min
CodePudding user response:
The speed of the hall sensors, and the input of fertilizer form a negative feedback loop is not lineCodePudding user response:
PID, a lot of information, not make a hall sensor, made encoder, but the principle should be the same, you check the motor PID algorithmCodePudding user response:
I have done, what I use is board STM32F103 series do is to test the speed of the carBluetooth wireless transmission, mobile receiving speed, hall sensor is PNP detected NO (normally open) hall to high level, with the external interrupt count, rising edge, timer timing for a period of time, such as 1 second, look at the hall sensor in the 1 seconds to a few the second-highest level
CodePudding user response:
The