Hi, all. New to the arduino/electronics. And I do hope that this is the proper forum.
I haven an UNO and a kit. Working through the projects and all has gone well with each one (from vilros).
Now I am trying something on my own, with a different servo. First one, with the kit is an SG90 (very common it seems). Everything works fine. I can compile the sketch/project and upload. It spins just like I want it to.
I picked up another servo, from of all places Radio Shack… it’s a little smaller and I can’t find any good information or reports of its use any where. The model number is 2730765 - its not the parallax from a few years ago. The specs seem very similar, though (4.8-6V, PWM control @ 50Hz).
When I swap the SG90 out for the new servo, I immediately get a warning bell from my laptop. The new servo makes one quick, short turn (going to 0 I guess), then nothing.
I’ve hit the reset button and done a new compile and load. I’ve set verbose output during compile and load ( compile is great - I’ll edit that out of the rest of the post), but I get that ser_send() error.
I can switch the servos out and the SG90 works like a champ.
I’m thinking it’s one or both of a) a bad servo; b) power for the servo is insufficient.
BTW, for the SG90 the light (L) is solid, for the RS servo it’s flashing.
<compile deleted from post - ominoor>
C:\Program Files\Arduino/hardware/tools/avr/bin/avrdude -CC:\Program Files\Arduino/hardware/tools/avr/etc/avrdude.conf -v -patmega328p -carduino -PCOM4 -b115200 -D -Uflash:w:C:\Users\jcv\AppData\Local\Temp\build6429504825624982692.tmp/Circuit_08.cpp.hex:i
avrdude: Version 6.0.1, compiled on Jan 15 2015 at 16:58:43
Copyright (c) 2000-2005 Brian Dean, http://www.bdmicro.com/
Copyright (c) 2007-2009 Joerg Wunsch
System wide configuration file is “C:\Program Files\Arduino/hardware/tools/avr/etc/avrdude.conf”
Using Port : COM4
Using Programmer : arduino
Overriding Baud Rate : 115200
avrdude: ser_open(): can’t open device “\.\COM4”: The system cannot find the file specified.
Problem uploading to board. See http://www.arduino.cc/en/Guide/Troubleshooting#upload for suggestions.
avrdude done. Thank you.