Drone Hat
~(o.o)~ ..for someone else
..and at last minute (≖_≖ )


For one touch activation, it required bridging button circuits in sequence on the native controller and grounding one of the toggles required for RF connection:
1. power up --> 4.5V bridge with 2N2222 transistor
2. up (connect) --> 3.3V bridge w/ 2N2222
3. down (connect) --> mechanical relay (5V) to gnd toggle
4. lower button (level) --> 3.3V bridge w/ 2N2222
5. upper button (launch) --> 3.3V bridge w/ 2N2222
6. upper button (land)



Excuse the sloppy infrastructure.. there were technically no do-overs allotted whilst doing-over several times. The real success was having powered an Arduino Nano, a 5V relay, laser, bright white LED, 40+ Neopixels (running an aggressive flashing script) and the drone controller with a mere (3) AA batteries (4.5V).



#include <Servo.h>
#include "FastLED.h"

Servo doors;
int closed = 5;
int openned = 40;

#define NUM_LEDS 60
CRGB leds[NUM_LEDS];
#define PIN 4

const int up = 3; // relay
const int launch = 6;
const int button = 7;
const int level = 8;
const int down = 10;
const int power = 12;

int buttonstate;
int flystate = 0;

void setup() {
FastLED.addLeds(leds, NUM_LEDS).setCorrection(TypicalLEDStrip);

doors.attach(11);
doors.write(closed);

pinMode(up, OUTPUT);
pinMode(launch, OUTPUT);
pinMode(button, INPUT);
pinMode(level, OUTPUT);
pinMode(down, OUTPUT);
pinMode(power, OUTPUT);

digitalWrite(up, LOW);
digitalWrite(launch, LOW);
digitalWrite(level, LOW);
digitalWrite(down, LOW);
digitalWrite(power, LOW);

delay(500);
}

void loop() {
buttonstate = digitalRead(button);
if (buttonstate == HIGH) {
if (flystate == 0) {
launchit();
} else if (flystate == 1) {
land();
} else {
// error
}
} else {
Sparkle(0x00, 0x00, 0xff, 0);
}
}

void launchit() {
doors.write(openned);
delay(1000);
doors.write(closed);
digitalWrite(power, HIGH);
delay(300);
digitalWrite(power, LOW);
delay(300);
digitalWrite(up, HIGH);
delay(750);
digitalWrite(up, LOW);
delay(300);
digitalWrite(down, HIGH);
delay(300);
digitalWrite(down, LOW);
delay(300);
digitalWrite(launch, HIGH);
delay(300);
digitalWrite(launch, LOW);
flystate = 1;
}

void land () {
digitalWrite(launch, HIGH);
delay(300);
digitalWrite(launch, LOW);
delay(300);
digitalWrite(power, HIGH);
delay(1500);
digitalWrite(power, LOW);
flystate = 0;
}

void Sparkle(byte red, byte green, byte blue, int SpeedDelay) {
int Pixel = random(NUM_LEDS);
setPixel(Pixel, red, green, blue);
showStrip();
delay(SpeedDelay);
setPixel(Pixel, 0, 0, 0);
}

void showStrip() {
#ifdef ADAFRUIT_NEOPIXEL_H
// NeoPixel
strip.show();
#endif
#ifndef ADAFRUIT_NEOPIXEL_H
// FastLED
FastLED.show();
#endif
}

void setPixel(int Pixel, byte red, byte green, byte blue) {
#ifdef ADAFRUIT_NEOPIXEL_H
// NeoPixel
strip.setPixelColor(Pixel, strip.Color(red, green, blue));
#endif
#ifndef ADAFRUIT_NEOPIXEL_H
// FastLED
leds[Pixel].r = red;
leds[Pixel].g = green;
leds[Pixel].b = blue;
#endif
}

void setAll(byte red, byte green, byte blue) {
for (int i = 0; i < NUM_LEDS; i++ ) {
setPixel(i, red, green, blue);
}
showStrip();
}

@VijeMiller
KE=½mv²