Edison Crashes when using Servo

David_C_9 — Fri, 15 May 2015 17:50:34 GMT

Hello,

I followed Rex's Grove Starter kit and then decided to add a little bit more complexity to it to do more interesting things. I have the rotary sensor controlling the servo. The code itself works great for a while until it eventually crashes. Full symptoms are: Program stops responding to analog input, followed by the wifi appearing to shut down temporarily.

I have attempted increasing the detection to every .25 seconds, which made the issue worse. Decreasing the time to .05 seconds seems to work better-ish. I use cylon.js.

every((.05).second(), function() {
var nAngle = parseInt(robo.rotary.analogRead() / 5.6);
var aDelta = nAngle - robo.servo.currentAngle();
if(aDelta > 7 || aDelta < -7 && nAngle > 5 && nAngle < 175)
{
robo.servo.angle(nAngle);
}
});

I have the analog connected to A0 and the servo connected to D3. I currently have nothing else connected. The switch is set to 5V. It seems to die immediately on 3v3.

Any ideas what the issue might be? Do I need more power?

Measure the voltage rails,

Stewart_C_Intel — Fri, 15 May 2015 19:31:26 GMT

Measure the voltage rails, its likely the Servo is needing more power than the 5V regulator can supply, especially if it stalls.

topic Edison Crashes when using Servo in Software Archive

Edison Crashes when using Servo

Measure the voltage rails,