Out next project is to use the above in conjunction with a LM311 comparator to measure voltages up to 20-volts.See Arduino Analog to Digital Conversion Voltmeter.#include <Wire.h> #include <LiquidCrystal_I2C.h>
Returns data from an RC Receiver using the digital IO ports of an Arduino. When a standard RC Receiver's output is connected to an interrupt supported pin on the Arduino, this block uses interrupts to measure the width of the servo pulse. Usually servo pulses range from 1000 to 2000 ...
measure pulse from 2-3us to 3 minutes but the first one uses an assembler routine to make the measurement while the second one uses the Timer0 interrupt to calculate the result.The first one: pulseIn, can be used if interrupts are turned off (and if they are off will return a more ...
to receive measure result from US-025,US-026 pinMode(TrigPin, OUTPUT); //Set TrigPin as output, used to send high pusle to trig measurement (>10us) } void loop(){ digitalWrite(TrigPin, HIGH); //begin to send a high pulse, then US-025/US-026 begin to measure the distance delayM...
Bit-banging Pulse Width Modulation You can "manually" implement PWM on any pin by repeatedly turning the pin on and off for the desired times. e.g. void setup() { pinMode(13, OUTPUT); } void loop() { digitalWrite(13, HIGH);
to receive measure result from US-015 pinMode(TrigPin, OUTPUT); //Set TrigPin as output, used to send high pusle to trig measurement (>10us) } void loop(){ digitalWrite(TrigPin, HIGH); //begin to send a high pulse, then US-015 begin to measure the distance delayMicroseconds(20);...
digitalWrite(TrigPin, HIGH); //begin to send a high pulse, then US-015 begin to measure the distance delayMicroseconds(20); //set this high pulse width as 20us (>10us) digitalWrite(TrigPin, LOW); //end this high pulse Time_Echo_us = pulseIn(EchoPin, HIGH); //calculate the pulse ...
digitalWrite(TrigPin, HIGH); //begin to send a high pulse, then US-025/US-026 begin to measure the distance delayMicroseconds(20); //set this high pulse width as 20us (>10us) digitalWrite(TrigPin, LOW); //end this high pulse
digitalWrite(TrigPin, HIGH);//begin to send a high pulse, then US-015 begin to measure the distance delayMicroseconds(20);//set this high pulse width as 20us (>10us) digitalWrite(TrigPin, LOW);//end this high pulse Time_Echo_us = pulseIn(EchoPin, HIGH);//calculate the pulse width ...
digitalWrite(TrigPin, HIGH);//begin to send a high pulse, then US-025/US-026 begin to measure the distance delayMicroseconds(20);//set this high pulse width as 20us (>10us) digitalWrite(TrigPin, LOW);//end this high pulse Time_Echo_us = pulseIn(EchoPin, HIGH);//calculate the pulse...