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I am using two push on button as a limit switch, when i press the push button, it will send a signal to the controller, but the signal will cut off when unpressed.. is there any method to keep the signal to high-state when the push button is unpressed?
Re: motor driver
the motor is running at free load, just but the voltage that supplied to the motor can reach around 3V, which the motor rotate at slow speed, and i try to increase the voltage at input pin but it only can reach 7V, i direct connect the sense pin to ground, i have tried 10 ohm...
motor driver
i have tried using L298N to control a 12V DC motor which required to drive 1.44A, but i found that the output of L298N that generate to the motor tend to drops to half of the voltage that i supplied to input pin of L298N, and the maximum voltage that manage to supplied to the motor...
motor feedback
i m using an incremental encoder to feedback the speed of a dc motor. i am concern about the frequency of the pulse generate from encoder as i need a find a set point (desired frequency/speed) , the motor is used to lift up a load at a constant speed. during the lifting, torque...
frequency to voltage
i have series of pulse produced from incremental encoder.. is there any possible way i can change the pulse frequency to voltage level??????
i m using only A channel as i m not concern on the direction, may i know the purpose u combine the channels with logic gates? to increase to resolution? when i test the encoder with oscilloscope, there are pulses appear, but with lots of interference as well in sinusoidal form, is there anyway...
interface rotary encoder microcontroller
i am using a rotary encoder as a feedback of motor speed to PIC microcontroller(PIC-16f877A), the output of the encoder is in the form of open collector output, do i need any interface for connecting the encoder to I/O pin of the PIC? thanks for...
rotary encoder pic
in my design, the motor is required to lift up/down a base with a constant speed within 5-8rpm, i m using incremental encoder as the speed sensor and PIC-16f877A to control the pwm, the motor is directly connected to the base as well as the encoder, can anyone guide me in...
precise angle is crucial for my device, i am thinking of using a push button switch, when the moving base touch the switch, a signal will send to the PIC and yet change the motor direction
my device helps to perform elbow continuous passive motion exercise. may i have the idea from you guys what type of motor is suitable to be used? the motor used must be low noise, can withstand continuous motion for hours without dissipated much power (hot), adjustable angle range. initially i...
the device is used for performing passive arm exercise for those who undergo arm physio, the mechanical design is basically consist of a stationary base and a moving base . the angle range of the exercise increase slowly according to the pain tolerance of the user. so, i need a sensor to detect...
yes, i am new to sensor. the range of motion of my device is within 0° to 130° , with adjustable angle range of ±5° , meaning that if we set 30°, the moving base will move from 0° to 30°, then change the direction of lifting. so i need a sensor that enable me to adjust its initial location...
hi everyone,
my design is a continuous motion device (lifting up and down) with certain range of motion (degrees). i need a sensor so that the moving base will change the direction of lifting when it reach the range limit. any suggestion for the sensor to be used?
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