By using Arduino, the accelerometer and LED production time gloves, the hand is tilted with both hands, it appears to be in time, and moves before and after time.
Create an illusion by flashing the LED at a specific frequency. It is planned to set the time period equal to the time period of repeating itself. For example, in the case of using the fan, we will flash this light as long as the blade reaches a certain position. Just like a snapshot of the shooting object. If the frequency is equal to the frequency of the rotating fan, we will see that the fan is still moving, and it feels that it is frozen in time. If the frequency is high, we feel the fan to rotate. If the frequency is slightly lower, we feel that the fan is rotating forward. What you have to do is to adjust the frequency flashing of the object frequency.
The required components:
Arduino
Accelerometer
Light source - try to use 5V LED and Neopixel ring
9V battery
Be
First, steps:
1. Connect the 9V battery or DC power adapter. This voltage input is connected to the 7805 regulator, which converts the unstatic 7 to 32V DC voltage to 5V DC power supplies. The 5 V power supply is then connected to the Arduino and the indicator LED and the accelerometer.
Second, PCB layout, welding
Third, encoding
1, the code of the Arduino LED project. Quickly call the library and header files required to run the code. Since the NEO Pixel library is used, its header file, pin configuration, and a library for controlling the Neopixel ring must be included.
#include
#ifdef __AVR__
#Include
#ENDIF
#define Pin 9
#define numpixels 16
Adafrouit_neopixel Pixels (Numpixels, PIN, NEO_GRB + NEO_KHZ800);
INT X, Y, Ontime, Offtime;
Void setup () {
#if Defined (__avr_attiny85__) && (f_cpu == 16000000)
Clock_prescale_set (Clock_DIV_1);
#ENDIF
Pixels.begin ();
Serial.begin (9600);
Be
Lightnormal (); // Turn on the lamp for 5 minutes, then start flashing
DELAY (5000);
}
Void loop () {
Y = Map (AnalogRead (A1), 250, 410, 10, 100);
Serial.Print ("y =");
Serial.Println (Y);
Ontime = Y / 128;
OFFTIME = Y;
LIGHTUP ();
}
void lightup ()
{
Pixels.clear ();
Pixels.show ();
DELAY (OFFTIME);
Pixels.Fill (Pixels.Color (255, 255, 255), 0, 15);
Pixels.show ();
DELAY (ONTIME);
/ * // Connect to the D9 LED code (if you don't use NeopiX)
DigitalWrite (D9, HIGH);
DELAY (ONTIME);
DigitalWrite (D9, Low);
DELAY (OFFTIME);
* /
}
Void Lightnormal ()
{
Pixels.Fill (Pixels.Color (120, 120, 120), 0, 15);
Pixels.show ();
/ * // Connect to the D9 LED code (if you don't use NeopiX)
DigitalWrite (D9, Low);
* /
}
(Do not use the Neopixel LED ring and use with ordinary LEDs, no need to use any of these code)
2, Arduino project with LED - code description
Declare 4 variables x, y, ON time and OFF time, in the setup function, the Neopixel ring will initialize the Neopixel ring, start serial communication and open the LED or ring for 5 seconds, and then start flashing. Be
Void setup () {
#if Defined (__avr_attiny85__) && (f_cpu == 16000000)
Clock_prescale_set (Clock_DIV_1);
#ENDIF
Pixels.begin ();
Serial.begin (9600);
Be
Lightnormal (); // Turn on the lamp for 5 minutes, then start flashing
DELAY (5000);
}
In the loop, this function will acquire an analog read number of pin A1 output from the acceleration meter (vary between 250 and 410), and map the value between 10 and 100.
Y = Map (AnalogRead (A1), 250, 410, 10, 100);
This value is then divided by 128, and then stored in the variable on time, the value y is stored in the time variable. Be
Ontime = Y / 128;
OFFTIME = Y;
Open and close the LED on the Neopixel ring, the value of the turn-on time and the off time is the same as the off delay.
In the lighting function, all LEDs in the ring network are turned on and wait for a period of time (usually a few milliseconds). After that, it will clear all LEDs and wait for a while. This whole process repeats again and again.
void lightup ()
{
Pixels.clear ();
Pixels.show ();
DELAY (OFFTIME);
Pixels.Fill (Pixels.Color (255, 255, 255), 0, 15);
Pixels.show ();
DELAY (ONTIME);
/ * // Connect to the D9 LED code (if you don't use NeopiX)
DigitalWrite (D9, HIGH);
DELAY (ONTIME);
DigitalWrite (D9, Low);
DELAY (OFFTIME);
* /
}
The only change is on time and disconnection time, which is proportional to the Y output value of the accelerometer. This is the way to change the flashing frequency by tilt hands. Be
The normal lighting function will open all LEDs of the new pixel ring.
3, Arduino LED Project Coding Skills
If you are using an LED instead of a new pixel ring, you can use these code instead of this new pixel code.
In this section, it is only necessary to adjust.
Y = Map (AnalogRead (A1), 250, 410, 10, 100);
These values can be used, once you know the correct frequency, you can fine tune and adjust these values. First, set the open time and the closing time to Y. But after so many tests, it is found that it is best to set the value of the on time as low as possible. Set it to a more clear image with a value that is relatively low. This is the code of the LED light Arduino project.
Fourth, upload code
Select the correct port and board, upload code.
Five, assembly
Connect all things to your gloves. The Neopixel ring can be secured in the palm of the glove and secure the board and the battery on the back of the glove.
Six, video demo
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