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Whatever happened before and whatever comes after, remember this smile. This is my happiness. This moment. This time. It's mine, and I am so thankful for every second of it.
If you know me, you know this is the smile. My smile.
There are so many reasons for it. Some of them you will never know, because it's better that you don't - you can't be this happy without having been through some sadness, I think. Some of them I won't tell you, because I want to keep it just for me. Some of them I've told you about already. Some of them I'll tell you about in time. And the rest? You'll find out sooner than you think.
******
By the way: Without Polaroid, this moment wouldn't have been possible. Polaroid has been partly responsible for this happiness, and it certainly is partly responsible for capturing it in just the right way. I love Polaroid, and I'll love it for life. Save Polaroid!
tra le 7,12 e le 8,11 il cielo ha cambiato abito molte volte....
between 7.12 and 8.11 the sky has changed clothes many times ....
Add a Switch
Now that you’ve had some fun controlling the motor speed, let’s try controlling the direction.
1. Remove all components except the motor and the wires connecting power between Arduino and the breadboard, and then hook up a regular switch (SPST) to your breadboard.
2. Connect one wire of the switch to power.
3. Connect the other wire to a 10 K Ohm resistor going to ground. This is called a “pull down” resistor because it will be pulling the pin to ground when the switch is open rather than letting it “float.” Floating pins aren’t connected to any voltage in your circuit and will pick up static electricity from the air, with unpredictable results. We generally avoid having unpredictable results!
4. Use hook-up wire to make one last connection from Arduino digital pin 2 to the point where the resistor and the switch are connected. When the switch is open, the pin will be connected to ground via the resistor. When the switch is closed, positive voltage will flow through the switch to the pin. That’s the path of least resistance. So either we’ll be sending power or ground to the pin, but never letting it float.
Add an H-bridge
Inside your H-bridge is actually a collection of transistors that are permanently assembled in such a way as to provide two H-bridge circuits for changing the direction of current flow. Here’s a pin diagram, helpfully annotated by Tom Igoe, who wrote your Physical Computing text:
h-bridge pinout
Fear not, hooking it up is pretty easy, you just need to do it one wire at a time. Note how the pins are numbered, with pin 1 being on the upper left next to the notch in the chip, and the numbers going down the left side and back up the right side until you get to pin 16. This is the standard method of numbering the pins on any microchip.
1. Using hook-up wire, connect pin 16 to your circuit’s power rail (+5 volts).
2. Connect pin 8 to the power supply for your motor. For this lab, that’s going to be the same +5 volts, but if you were using a larger motor it would be to the motor’s supply voltage, maybe +9 volts, +12 volts or more.
3. Pin 1 gets connected to power. This pin enables the motor circuitry. For this project, we just leave it enabled all the time since we have an external microcontroller making all of our logic decisions.
4. Pins 4, 5, 12 and 13 all can be connected to ground. For small motors actually any one of these pins will do, the extra pins are there just to conduct excess heat away from the chip. That’s important if you are handling a larger load.
5. Connect pin 2 to Arduino digital pin 3. Setting this pin high will enable the motor to spin in one direction.
6. Connect pin 7 to Arduino digital pin 7. This will enable the motor to spin in the other direction.
7. Attach one wire from your motor to pin 3 on the H-bridge.
8. Attach the other motor wire to pin 6 on the H-bridge.
9. Attach pin 9 on the H-bridge to Arduino digital pin 9.
10. Connect an LED to Arduino digital pin 13 and the other end to a 1 K Ohm resistor going to ground.
Controlling Direction
Load the following code to control the motor’s direction with the switch. Note that there’s a function to blink the LED on the board that’s permanently attached to pin 13. You may want to copy that function to use in other code you write.
const int switchPin = 2; // switch input
const int motor1Pin = 3; // H-bridge leg 1 (pin 3, 1A)
const int motor2Pin = 7; // H-bridge leg 2 (pin 7, 2A)
const int enablePin = 9; // H-bridge enable pin
const int ledPin = 13; // LED
void setup() {
// set the switch as an input:
pinMode(switchPin, INPUT);
// set all the other pins you're using as outputs:
pinMode(motor1Pin, OUTPUT);
pinMode(motor2Pin, OUTPUT);
pinMode(enablePin, OUTPUT);
pinMode(ledPin, OUTPUT);
// set enablePin high so that motor can turn on:
digitalWrite(enablePin, HIGH);
// blink the LED 3 times. This should happen only once.
// if you see the LED blink three times, it means that the module
// reset itself,. probably because the motor caused a brownout
// or a short.
blink(ledPin, 3, 100);
}
void loop() {
// if the switch is high, motor will turn on one direction:
if (digitalRead(switchPin) == HIGH) {
digitalWrite(motor1Pin, LOW); // set leg 1 of the H-bridge low
digitalWrite(motor2Pin, HIGH); // set leg 2 of the H-bridge high
}
// if the switch is low, motor will turn in the other direction:
else {
digitalWrite(motor1Pin, HIGH); // set leg 1 of the H-bridge high
digitalWrite(motor2Pin, LOW); // set leg 2 of the H-bridge low
}
}
/*
blinks an LED
*/
void blink(int whatPin, int howManyTimes, int milliSecs) {
int i = 0;
for ( i = 0; i < howManyTimes; i++) {
digitalWrite(whatPin, HIGH);
delay(milliSecs/2);
digitalWrite(whatPin, LOW);
delay(milliSecs/2);
}
}
CD jewel case cover (12.2cm x 24.4cm). Not available in the shops.
1. Supernature [William Orbit Remix]
2. You Surround Me [Syrinx Mix]
3. A Little Respect
4. It Doesn't Have To Be
5. Victim Of Love [Remix]
6. Who Needs Love Like That
7. My Heart... So Blue
8. How Many Times?
9. Piano Song
10. Hideaway [Little Louie Vega Mix]
11. The Hardest Part
12. Chains Of Love [The Foghorn Mix]
13. Ship Of Fools
14. Hallowed Ground
15. When I Needed You [Melancholic Mix]
16. Drama! [Krucial Mix]
Total time: 78:20
As a playlist of all 3 compilations -
Spotify:
open.spotify.com/playlist/2ayIgT0NgP3yXs6yGM8WSc
Amazon:
music.amazon.co.uk/user-playlists/8052cbd144d44b72b20cf0c...
how many times will I try to achieve with my eye what my mind will imagine...??
I'd like to mention inspiration of my friend NJDodge as he has said it is difficult get these"right"..right out of the camera.
I am always tempted to apply filter to these flowers as they present certain technical difficulties to transmute to art in the macro
How many times have I been born? How many bones have I left behind, how many loves have I had. How many beds have I shared? How many hatreds. How many times have I been left behind? How many times have I fled, or stayed. No matter how many times, life and death have managed to wipe away all those memories and I start anew, each moment, day, week, month, year, and each and every life time, I somehow manage to come back here.
May 16th - My wallet. Why? Because I can! Ask the boy where his is... lost - for the second time in 2 months. Complete with cards, licence, lotto tickets -
Year - 1926
Title - How Many Times?
Lyricist - Irving Berlin
Composer - Irving Berlin
Publisher - Irving Berlin Inc., New York, NY
By @royalelradin "#dérapé #dérapéproductions #teamthinkahead #teamnoncomplacency #revolution #revolutiontoinspire #motivation #motivationalquote #motivationalspeaker #quotesdaily #quoteoftheday #quotesaboutlife #wordoftheday #wordstoliveby #health #fitness #picoftheday #philosopher #inspire #inspiration #inspirationalquotes #successquotes #lifequotes #lifecoach" #HowManyTimes #WillYouBe #SorryAbout #TheSameSituation - rellnash29
.@djkhaled feat @chrisbrown, @LilTunechi & @BigSean - How Many Times | bit.ly/1KGEHsN
#HowManyTimes bit.ly/1zYQH8T | Plaincut |