week05
Task 1 - Coded output
For output devices, I start working with a fan motor to turn it on and off. Fan motor is PWM motor so refer to below guideline, I connect it with pin 18.
PWM (Pulse Width Modulation) is a technique used to control the amount of power delivered to an electrical device by varying the duty cycle of a square wave signal.I used the past code which I used it before for LED,
Task 2 - Testing sensors
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Task 3 - Coding acceleration sensor
The aim of using this sensor is to know if the ball is jumping. The sensor read the acceleration in 3 dimensions, Gyro in 3 dimension and some related information.
While the sensor just take readings so we need to add something to figure out this is one jump.
Firstly, I checked the values of multiple states for the sensor (jumping, moving, elc..) and I think that will work if we just ignore the small values and see where is the big value which show there is a real change, but I notice that the main change when the sensor jump is in the acceleration in Z direction, and we also know that the acceleration will be zero at the end of going up and down so this idea will not work good.
I then think about going with delta of Z acceleration because the main change is there as you can see in the graph below.
To get delta of Z acceleration I need to save the past Z acceleration then take a delta after reading the new value. But while I don't need all of this values so I add If statement to remove any value of delta Z-acceleration less that 3.
This is the code after editing:
#include < Adafruit_MPU6050.h>
#include < Adafruit_Sensor.h>
#include < Wire.h>
Adafruit_MPU6050 mpu;
double AZ;
double DAccelZ;
void setup(void) {
Serial.begin(115200);
while (!Serial)
delay(10); // will pause Zero, Leonardo, etc until serial console opens
Serial.println("Adafruit MPU6050 test!");
// Try to initialize!
if (!mpu.begin()) {
Serial.println("Failed to find MPU6050 chip");
while (1) {
delay(10);
}
}
Serial.println("MPU6050 Found!");
//setupt motion detection
mpu.setHighPassFilter(MPU6050_HIGHPASS_0_63_HZ);
mpu.setMotionDetectionThreshold(1);
mpu.setMotionDetectionDuration(20);
mpu.setInterruptPinLatch(true); // Keep it latched. Will turn off when reinitialized.
mpu.setInterruptPinPolarity(true);
mpu.setMotionInterrupt(true);
Serial.println("");
delay(100);
}
void loop() {
if(mpu.getMotionInterruptStatus()) {
/* Get new sensor events with the readings */
sensors_event_t a, g, temp;
mpu.getEvent(&a, &g, &temp);
DAccelZ = AZ-a.acceleration.z;
if (DAccelZ > 3){
Serial.print("D-AccelZ:");
Serial.println(DAccelZ);
}
/* Print out the values */
AZ= a.acceleration.z;
}
delay(10);
}
Design personal brand
I did a personal identity character for my website using Adobe illustrator, I start it with ready girl vector then I did some editing.
First I remove the glass and add eyebrow. I then change the girl's clothes (draw it using normal shapes and lines), and I add a mouse in the hand to add extra life in the design.
This is the ready design that I used (token from freepik website).
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