Raymond3231976
Member
LOL I hope so .The eta on the battery is May 7
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Maybe. The AmpHour rating of a typical SLA battery is usually based on a 20 hour discharge time. The capacity is lower if you discharge it faster. Look at the datasheet for the actual battery to verify it's particular derating factor.A 12V 18AH battery is able to supply approx 200WH and so that battery will power your 80W motor (at maximum load) for about 2 hours. Is 2 hours long enough? Paralleling will add more hours.
Mike.
When I was a kid growing up in New York City and wanted parts I had to first go to the post office and buy a money order, walked or rode my bicycle. Then I would mail my money order to the vendor. Then waited for weeks for the mailman to show up with my parts. Today I just point and click using Amazon and in two days I get my parts.yea just wish they all would get here a little faster
// InputHysteresis.ino Turn a motor On and Off based on Battery Voltage.
// We want the motor to run only when the battery voltage exceeds a preset level.
// We also want a potentiometer to be able to set the motor speed when the motor is enabled.
// Define the baud rate for the serial port.
#define BAUD_RATE 9600
// This assumes A0 for Battery Voltage input and A1 for Motor Speed input.
// Battery Voltage allows a digital out for the motor to run or not run.
// Motor Speed controls a PWM output siganl to the motor.
#define INPUT1_PIN A0
#define INPUT2_PIN A1
// PWM Constants
const int analogInPin = A1; // Analog input pin that the potentiometer is attached to
const int pwmOutPin = 5; // Analog output pin that the LED is attached to
// The Arduino Uno built in LED is used for test purposes pin 13.
// The Arduino Uno pin 12 is used to enable or disable the motor.
#ifndef LED_BUILTIN
#define LED_BUILTIN 13
#endif
/****************************************************************/
// Global variables.
// The state of the motor enable output pin can be captured with only two values, High or Low Battery Voltage.
// Battery Voltage is represented by a single bit.
// The following statement defines two symbolic values, one for each possible state.
enum state_t { IS_LOW, IS_HIGH };
// Declare the state variable as a symbolic value.
enum state_t state = IS_LOW;
// The hysteretic response is defined by using two thresholds.
const int high_threshold = 881;
const int low_threshold = 819;
// The PWM Functions
int sensorValue = 0; // value read from the pot
int outputValue = 0; // value output to the PWM (analog out)
int percentValue = 0; // pump speed percent full scale
// Standard Arduino initialization function to configure the system.
void setup()
{
// initialize the Serial port
Serial.begin( BAUD_RATE );
// configure our trivial I/O
pinMode( LED_BUILTIN, OUTPUT );
pinMode( 12, OUTPUT);
// the LED and pin 12 start out High to match the initial state.
digitalWrite(LED_BUILTIN, HIGH);
digitalWrite(12, HIGH);
}
/****************************************************************/
// Standard Arduino polling function.
void loop()
{
// Read the PWM value of the input potentiometer.
sensorValue = analogRead(analogInPin);
// map it to the range of the analog out:
outputValue = map(sensorValue, 0, 1023, 0, 255);
// map pump speed percent of full scale
percentValue = map (outputValue, 0, 255, 0, 100);
// change the analog out value:
analogWrite(pwmOutPin, outputValue);
// print the results to the Serial Monitor:
Serial.print("\t Speed Input = ");
Serial.print(sensorValue);
Serial.print("\t Speed Output = ");
Serial.print(outputValue);
Serial.print("\t Motor Speed Percentage = ");
Serial.println(percentValue);
// wait 500 milliseconds before the next loop for the analog-to-digital
// converter to settle after the last reading:
delay(500); // Allow 0.5 Second and continue
// Read the Battery Voltage level.
int input1 = analogRead(INPUT1_PIN);
float battVolt = (input1 * 5.0) / 1023 * 3;
Serial.print ("\t Battery Voltage is ");
Serial.print (battVolt);
Serial.println (" Volts");
delay(1000);
if (state == IS_HIGH) {
if (input1 < low_threshold) {
Serial.print("Low observed at input level ");
Serial.println(input1);
Serial.println("Transitioning to the IS_LOW state.");
state = IS_LOW;
digitalWrite(LED_BUILTIN, LOW);
digitalWrite(12, LOW);
}
} else { // state must be IS_LOW
if (input1 > high_threshold) {
Serial.print("High observed at input level ");
Serial.println(input1);
Serial.println("Transitioning to the IS_HIGH state.");
state = IS_HIGH;
digitalWrite(LED_BUILTIN, HIGH);
digitalWrite(12, HIGH);
}
}
}
/****************************************************************/
// Read the PWM value of the input potentiometer.
sensorValue = analogRead(analogInPin);
// map it to the range of the analog out:
outputValue = map(sensorValue, 0, 1023, 0, 255);
// map pump speed percent of full scale
percentValue = map (outputValue, 0, 255, 0, 100);
// change the analog out value:
analogWrite(pwmOutPin, outputValue);
int ledPin = 13;
void setup()
{
pinMode(ledPin, OUTPUT);
}
void loop()
{
digitalWrite(ledPin, HIGH);
delay(1000);
digitalWrite(ledPin, LOW);
delay(1000);
}