Member Since: September 23, 2010

Country: United States


Ham Radio Operator, Electronics Tech, Network Engineer, Programmer. http://arduinotronics.blogspot.com

  • If he’s fine, then you are both confused. The temporary stay does not attack immigrants or refugees. It’s a temporary travel ban from countries that export terrorism (Obama labeled them such) until out vetting procedures can be evaluated. You have made a ineffective political post that at best, will lose you a chunk of your customer base.

  • Then speak for yourself on another venue. You are alienating your customers, which is never a good business decision.

  • I’m opposed to your opposition. You clearly don’t understand it’s not a ban on any one people or religion, it’s a temporary stay on travel from countries that export terrorism until we can get better vetting controls in place. Obama and other presidents did the same. I’ll take my business to a company that sticks to selling good products, and doesn’t get involved in fake political issues.

  • Will this work with a pressure sensor where all 4 legs of the wheatstone are variable?

  • Looks like you can PWM the enable pin for speed control?

  • What is the proper syntax for saving the scale output in a variable?

    float value;

    Serial.print(scale.getGram(), 1); <—– WORKS

    value = (scale.getGram(), 1) ;

    Serial.println(value); <—– NO GOOD! DISPLAYS: “1.00”

    value = (scale.getGram(), 2) ;

    Serial.println(value); <—– NO GOOD! DISPLAYS: “2.00”

  • The data sheet claims one trigger for every revolution of the anemometer. I have verified on 2 units it’s two triggers per revolution. working anemometer code posted at http://arduinotronics.blogspot.com/2015/08/measuring-wind-speed-with-arduino.html

  • “ A wind speed of 1.492 MPH produces a switch closure once per second.” Can’t be right. That would equal a 8.363" diameter anemometer. Correct me if I’m wrong, the diameter is 5.5", so 60 rpm (1 RPS) = a wind speed of 0.98125 MPH.

  • Momentarily connects A5 to ground.

  • OK, so even though the sketch says a 1k Ohm resistor should be added (and mixes up rx and tx), the data sheet says this unit is 5v friendly. I have both the enroll and the ID sample sketches operating fine, with no resistor. Pin 1 on the fingerprint scanner (black wire) is TX and connects to RX on the Arduino (Pin 4 in sample sketch), and Pin 2 (RX) on the fingerprint scanner connects to pin 5 (TX) on the Arduino. Pin 3 on the Finger print scanner connects to Arduino Gnd, and Pin 4 to 3.3v or 5v. I’m using 5v on the UNO.