Part Number: DRV8243-Q1
I am facing the problem using this Driver IC DRV8243HQDGQRQ1, I am controlling this Driver using io-expander SX1509.
this is schematics for the IC
the pin connection are
nSLEEP -> GPIO
DRVOFF -> GND
MODE -> GND (0 ohm)
NFAULT -> GPIO
nFAULT -> GPIO
EN/IN1 -> GPIO (PWM)
EN/IN2 -> GPIO
This is the code where i am trying to give pulse to nSLEEP pin:-
#include<Wire.h>
#include<SparkFunSX1509.h>
// Define the pin numbers for SX1509
constint SX1509_ADDR = 0x3E; // I2C address of SX1509
constint N_SLEEP_PIN = 15;
constint EN_PIN = 8; // EN/IN1 pin for PWM input
constint PH_PIN = 7; // PH/IN2 pin for direction input
constint N_FAULT_PIN = 9;
SX1509 ioExpander;
voidsetup() {
// Initialize I2C communication
Wire.begin();
// Initialize SX1509
if (!ioExpander.begin(SX1509_ADDR)) {
Serial.println("SX1509 not found!");
while (1);
}
// Set pins as outputs
ioExpander.pinMode(N_SLEEP_PIN, OUTPUT);
ioExpander.pinMode(EN_PIN, ANALOG_OUTPUT); // EN/IN1 pin for PWM
ioExpander.pinMode(PH_PIN, OUTPUT); // PH/IN2 pin for direction
ioExpander.pinMode(N_FAULT_PIN, INPUT);
ioExpander.digitalWrite(N_SLEEP_PIN, HIGH);//nsleep to high
delay(1000);
ioExpander.digitalWrite(N_SLEEP_PIN, LOW);
delayMicroseconds(30); // Added a delay to meet the wake-up pulse requirement
ioExpander.digitalWrite(N_SLEEP_PIN, HIGH);//set to high
delay(1000);
}
voidloop() {
// Rotate the motor forward for 2 seconds, then stop for 2 seconds, then reverse for 2 seconds
rotateForward();
delay(2000);
stopMotor();
delay(2000);
rotateReverse();
delay(2000);
stopMotor();
delay(2000);
}
voidrotateForward() {
// Set direction forward
ioExpander.digitalWrite(PH_PIN, HIGH);
// Set PWM for forward rotation
ioExpander.analogWrite(EN_PIN, 255);
}
voidrotateReverse() {
// Set direction reverse
ioExpander.digitalWrite(PH_PIN, LOW);
// Set PWM for reverse rotation
ioExpander.analogWrite(EN_PIN, 255);
}
voidstopMotor() {
// Set PWM to 0 to stop the motor
ioExpander.analogWrite(EN_PIN, 0);
}
but i am not able to get the output voltage
i am not able to find out what i am missing, kindly please help!!!
