The Alpha Geek – Geeking Out

Adafruit PowerBoost

Project #15: Environment – Adafruit PowerBoost – Mk14

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Adafruit PowerBoost

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Adafruit PowerBoost

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Adafruit PowerBoost

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Adafruit PowerBoost

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Adafruit PowerBoost 500 Shield – Rechargeable 5V Power Shield

What’s a project if it’s trapped on your desk? Now you can take your Arduino anywhere you wish with the PowerBoost shield. This stackable shield goes onto your Arduino and provides a slim rechargeable power pack, with a built in battery charger as well as DC/DC booster.

Compatible with Arduino Uno basically any Arduino-pinout-shaped Arduino as only the GND and 5V pins are used. You can stack shields on top, or stack the PowerBoost on top. The PowerBoost shield can run off of any Lithium Ion or Lithium Polymer battery but we suggest our 2000mAh capacity batteries, both of which fits very nicely in the empty space of the shield. Plug in the battery and recharge it via the microUSB jack. When you’re ready to go, just unplug the Arduino from USB or the wall adapter and it will automatically switch over to shield power. Use only Lipoly batteries with protection circuitry.

The onboard boost converter can provide at least 500mA current, and can peak at 1A. There’s an onboard fuse to protect against higher current draws which could damage the boost converter or battery. The boost converter can be damaged by high current spikes and is not recommended for driving motors or robots where the stall current can cause high current spikes. It will let you turn the shield and Arduino power on/off.

Lithium Ion Battery – 3.7v 2000mAh

Lithium ion polymer batteries are thin, light and powerful. The output ranges from 4.2V when completely charged to 3.7V. This battery has a capacity of 2000mAh. If you need a larger battery. The batteries come pre-attached with a genuine 2-pin JST-PH connector as shown and include the necessary protection circuitry. Because they have a genuine JST connector, not a knock-off, the cable wont snag or get stuck in a matching JST jack, they click in and out smoothly.

DL2110Mk01

1 x Arduino UNO – R3
1 x ProtoScrewShield
1 x Adafruit PowerBoost 500 Shield
1 x Lithium Ion Battery – 3.7v 2000mAh
4 x Pololu Carrier for MQ Gas Sensors
1 x SparkFun Hydrogen Gas Sensor – MQ-8
1 x 4.7K Ohm
1 x Pololu Carbon Monoxide & Flammable Gas Sensor – MQ-9
1 x 22k Ohm
1 x SparkFun Carbon Monoxide Gas Sensor – MQ-7
1 x 10K Ohm
1 x SparkFun Alcohol Gas Sensor – MQ-3
1 x 220k Ohm
1 x Temperature and Humidity Sensor- RHT03
1 x PIR Motion Sensor (JST)
1 x SparkFun Solderable Half-Breadboard
1 x SparkFun Cerberus USB Cable

Arduino UNO – R3

RHT – Digital 5
PIR – Digital 7
MQ8 – Analog 0
MQ9 – Analog 1
MQ7 – Analog 2
MQ3 – Analog 3
VIN – +5V
GND – GND

DL2110Mk01p.ino

/* 
***** Don Luc Electronics © *****
Software Version Information
Project #15: Environment – Adafruit PowerBoost – Mk14
10-01
DL2110Mk01p.ino
1 x Arduino UNO - R3
1 x ProtoScrewShield
1 x Adafruit PowerBoost 500 Shield
1 x Lithium Ion Battery - 3.7v 2000mAh
4 x Pololu Carrier for MQ Gas Sensors
1 x SparkFun Hydrogen Gas Sensor - MQ-8
1 x 4.7K Ohm
1 x Pololu Carbon Monoxide & Flammable Gas Sensor - MQ-9
1 x 22k Ohm
1 x SparkFun Carbon Monoxide Gas Sensor - MQ-7
1 x 10K Ohm
1 x SparkFun Alcohol Gas Sensor - MQ-3
1 x 220k Ohm
1 x Temperature and Humidity Sensor - RHT03
1 x PIR Motion Sensor (JST)
1 x SparkFun Solderable Half-Breadboard
1 x SparkFun Cerberus USB Cable
*/

// Include the Library Code
// EEPROM Library to Read and Write EEPROM with Unique ID for Unit
#include <EEPROM.h>
// RHT Temperature and Humidity Sensor
#include <SparkFun_RHT03.h>

// RHT Temperature and Humidity Sensor
// RHT03 data pin Digital 5
const int RHT03_DATA_PIN = 5;
// This creates a RTH03 object, which we'll use to interact with the sensor
RHT03 rht;
float latestHumidity;
float latestTempC;
float latestTempF;

// Gas Sensors MQ
// Hydrogen Gas Sensor - MQ-8
int iMQ8 = A0;
int iMQ8Raw = 0;
int iMQ8ppm = 0;
// Two points are taken from the curve in datasheet.
// With these two points, a line is formed which is
// "approximately equivalent" to the original curve.
float H2Curve[3] = {2.3, 0.93,-1.44};

// Carbon Monoxide & Flammable Gas Sensor - MQ-9
int iMQ9 = A1;
int iMQ9Raw = 0;
int iMQ9ppm = 0;

// Carbon Monoxide Gas Sensor - MQ-7
int iMQ7 = A2;
int iMQ7Raw = 0;
int iMQ7ppm = 0;

// Alcohol Gas Sensor - MQ-3
int iMQ3 = A3;
int iMQ3Raw = 0;
int iMQ3ppm = 0;

// PIR Motion
// Motion detector
const int iMotion = 7;
// Proximity
int proximity = LOW;
String Det = "";

// Software Version Information
String uid = "";
// Version
String sver = "15-14";

void loop()
{
     
  // RHT Temperature and Humidity Sensor
  isRHT03();

  // Gas Sensors MQ
  isGasSensor();

  // isPIR Motion
  isPIR();

  // Delay
  // Turn the LED on HIGH is the voltage level
  digitalWrite(LED_BUILTIN, HIGH);
  // Wait for a 0.5 second
  delay( 500 );
  // Turn the LED off by making the voltage LOW
  digitalWrite(LED_BUILTIN, LOW);
  // Wait for a 0.5 second
  delay( 500 );
 
}

getEEPROM.ino

// EEPROM
// isUID EEPROM Unique ID
void isUID()
{
  
  // Is Unit ID
  uid = "";
  for (int x = 0; x < 5; x++)
  {
    uid = uid + char(EEPROM.read(x));
  }
  
}

getGasSensorMQ.ino

// Gas Sensors MQ
// Gas Sensor
void isGasSensor() {

  // Read in analog value from each gas sensors
  
  // Hydrogen Gas Sensor - MQ-8
  iMQ8Raw = analogRead( iMQ8 );

  // Carbon Monoxide & Flammable Gas Sensor - MQ-9
  iMQ9Raw = analogRead( iMQ9 );  

  // Carbon Monoxide Gas Sensor - MQ-7
  iMQ7Raw = analogRead( iMQ7 );

  // Alcohol Gas Sensor - MQ-3
  iMQ3Raw = analogRead( iMQ3 );
  
  // Caclulate the PPM of each gas sensors

  // Hydrogen Gas Sensor - MQ-8
  iMQ8ppm = isMQ8( iMQ8Raw );

  // Carbon Monoxide & Flammable Gas Sensor - MQ-9
  iMQ9ppm = isMQ9( iMQ9Raw ); 

  // Carbon Monoxide Gas Sensor - MQ-7
  iMQ7ppm = isMQ7( iMQ7Raw ); 

  // Alcohol Gas Sensor - MQ-3
  iMQ3ppm = isMQ3( iMQ3Raw ); 

  // Serial
  // Hydrogen Gas Sensor - MQ-8
  Serial.print( "MQ-8: " );
  Serial.println( iMQ8ppm );
  // Carbon Monoxide & Flammable Gas Sensor - MQ-9
  Serial.print( "MQ-9: " );
  Serial.println( iMQ9ppm );
  // Carbon Monoxide Gas Sensor - MQ-7
  Serial.print( "MQ-7: " );
  Serial.println( iMQ7ppm );
  // Alcohol Gas Sensor - MQ-3 
  Serial.print( "MQ-3: " );
  Serial.println( iMQ3ppm );
  
}
// Hydrogen Gas Sensor - MQ-8 - PPM
int isMQ8(double rawValue) {

  // RvRo
  double RvRo = rawValue * (3.3 / 1023);

  return (pow(4.7,( ((log(RvRo)-H2Curve[1])/H2Curve[2]) + H2Curve[0])));
  
}
// Carbon Monoxide & Flammable Gas Sensor - MQ-9
int isMQ9(double rawValue) {

  double RvRo = rawValue * 3.3 / 4095;

  double ppm = 3.027*exp(1.0698*( RvRo ));
  return ppm;
  
}
// Carbon Monoxide Gas Sensor - MQ-7
int isMQ7(double rawValue) {

  double RvRo = rawValue * 3.3 / 4095;

  double ppm = 3.027*exp(1.0698*( RvRo ));
  return ppm;
  
}
// Alcohol Gas Sensor - MQ-3
int isMQ3(double rawValue) {

  double RvRo = rawValue * 3.3 / 4095;

  double bac = RvRo * 0.21;
  return bac;
  
}

getPIR.ino

// PIR Motion
// Setup PIR
void setupPIR() {

  // Setup PIR Montion
  pinMode(iMotion, INPUT_PULLUP);
  
}
// isPIR Motion
void isPIR() {

  // Proximity
  proximity = digitalRead(iMotion);
  if (proximity == LOW) 
  {

    // PIR Motion Sensor's LOW, Motion is detected
    Det = "Motion Yes";
    // Serial
    Serial.println( Det );
    
  }
  else
  {

    // PIR Motion Sensor's HIGH
    Det = "No";
    // Serial
    Serial.println( Det );
    
  }
  
}

getRHT.ino

// RHT Temperature and Humidity Sensor
// setup RHT Temperature and Humidity Sensor
void setupRTH03() {

  // RHT Temperature and Humidity Sensor
  // Call rht.begin() to initialize the sensor and our data pin
  rht.begin(RHT03_DATA_PIN);
  
}
// RHT Temperature and Humidity Sensor
void isRHT03(){

  // Call rht.update() to get new humidity and temperature values from the sensor.
  int updateRet = rht.update();

  // The humidity(), tempC(), and tempF() functions can be called -- after 
  // a successful update() -- to get the last humidity and temperature value 
  latestHumidity = rht.humidity();
  latestTempC = rht.tempC();
  latestTempF = rht.tempF();

  // Serial
  // RHT Temperature and Humidity Sensor
  // Temperature F
  Serial.print( "Temp F: " );
  Serial.println( latestTempF );
  // Temperature C
  Serial.print( "Temp C: " );
  Serial.println( latestTempC );
  // Humidity
  Serial.print( "Humidity: " );
  Serial.println( latestHumidity );
  
}

setup.ino

// Setup
void setup()
{
    
  // EEPROM Unique ID
  isUID();

  // Serial
  Serial.begin( 9600 );
  
  // RHT Temperature and Humidity Sensor
  // setup RTH03 Humidity and Temperature Sensor
  setupRTH03();

  // PIR Motion
  // Setup PIR
  setupPIR();

  // Initialize digital pin LED_BUILTIN as an output.
  pinMode(LED_BUILTIN, OUTPUT);

  // Don Luc Electronics
  Serial.println( "Don Luc Electronics" );
  // Version
  Serial.println( sver );
  // Is Unit ID
  Serial.println( uid );
  
  delay( 5000 );
  
}

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