Getting Frustrated: Any electrical engineers?
- Thread starter auron
- Start date
did you try asking on the arduino forums? http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl
btw where did you get yours? i'm thinking of getting one so i can hook it up to an LCD and accelerometer for my car, or maybe a crank tachometer since autometer gauges cost way too much for what they are.
btw where did you get yours? i'm thinking of getting one so i can hook it up to an LCD and accelerometer for my car, or maybe a crank tachometer since autometer gauges cost way too much for what they are.
Alright, I haven't had any time to play with it this weekend but I just found this diagram at work which is oddly enough exactly what I'm trying to do with the exact parts... lol. I love the internets sometimes.
[lightbox=http://1.bp.blogspot.com/_4aP55hkI4n4/SGsbY5MoeNI/AAAAAAAAACM/G4ogUbh8QkE/s1600/rfid%2Bproject%2Bcopy.jpg|||][img:width=120&height=120]http://1.bp.blogspot.com/_4aP55hkI4n4/SGsbY5MoeNI/AAAAAAAAACM/G4ogUbh8QkE/s1600/rfid%2Bproject%2Bcopy.jpg[/img][/lightbox]
I got my arduino from sparkfun I believe. Its kind of fun to have sitting around to create little projects here and there with. I'm more of a software guy but occasionally like to bring my nerdiness to RL.
[lightbox=http://1.bp.blogspot.com/_4aP55hkI4n4/SGsbY5MoeNI/AAAAAAAAACM/G4ogUbh8QkE/s1600/rfid%2Bproject%2Bcopy.jpg|||][img:width=120&height=120]http://1.bp.blogspot.com/_4aP55hkI4n4/SGsbY5MoeNI/AAAAAAAAACM/G4ogUbh8QkE/s1600/rfid%2Bproject%2Bcopy.jpg[/img][/lightbox]
I got my arduino from sparkfun I believe. Its kind of fun to have sitting around to create little projects here and there with. I'm more of a software guy but occasionally like to bring my nerdiness to RL.
Propaganda
TD Member
[quote1268079266=Auron]
Alright, I haven't had any time to play with it this weekend but I just found this diagram at work which is oddly enough exactly what I'm trying to do with the exact parts... lol. I love the internets sometimes.
[lightbox=http://1.bp.blogspot.com/_4aP55hkI4n4/SGsbY5MoeNI/AAAAAAAAACM/G4ogUbh8QkE/s1600/rfid%2Bproject%2Bcopy.jpg|||][img:width=120&height=120]http://1.bp.blogspot.com/_4aP55hkI4n4/SGsbY5MoeNI/AAAAAAAAACM/G4ogUbh8QkE/s1600/rfid%2Bproject%2Bcopy.jpg[/img][/lightbox]
I got my arduino from sparkfun I believe. Its kind of fun to have sitting around to create little projects here and there with. I'm more of a software guy but occasionally like to bring my nerdiness to RL.
[/quote1268079266]
Thank you for properly posting your image Auron, unlike Brains who is intent on fucking shit up.
Alright, I haven't had any time to play with it this weekend but I just found this diagram at work which is oddly enough exactly what I'm trying to do with the exact parts... lol. I love the internets sometimes.
[lightbox=http://1.bp.blogspot.com/_4aP55hkI4n4/SGsbY5MoeNI/AAAAAAAAACM/G4ogUbh8QkE/s1600/rfid%2Bproject%2Bcopy.jpg|||][img:width=120&height=120]http://1.bp.blogspot.com/_4aP55hkI4n4/SGsbY5MoeNI/AAAAAAAAACM/G4ogUbh8QkE/s1600/rfid%2Bproject%2Bcopy.jpg[/img][/lightbox]
I got my arduino from sparkfun I believe. Its kind of fun to have sitting around to create little projects here and there with. I'm more of a software guy but occasionally like to bring my nerdiness to RL.
[/quote1268079266]
Thank you for properly posting your image Auron, unlike Brains who is intent on fucking shit up.
[quote1268081814=Propaganda]
[quote1268079266=Auron]
Alright, I haven't had any time to play with it this weekend but I just found this diagram at work which is oddly enough exactly what I'm trying to do with the exact parts... lol. I love the internets sometimes.
[lightbox=http://1.bp.blogspot.com/_4aP55hkI4n4/SGsbY5MoeNI/AAAAAAAAACM/G4ogUbh8QkE/s1600/rfid%2Bproject%2Bcopy.jpg|||][img:width=120&height=120]http://1.bp.blogspot.com/_4aP55hkI4n4/SGsbY5MoeNI/AAAAAAAAACM/G4ogUbh8QkE/s1600/rfid%2Bproject%2Bcopy.jpg[/img][/lightbox]
I got my arduino from sparkfun I believe. Its kind of fun to have sitting around to create little projects here and there with. I'm more of a software guy but occasionally like to bring my nerdiness to RL.
[/quote1268079266]
Thank you for properly posting your image Auron, unlike Brains who is intent on fucking shit up.
[/quote1268081814]
To be fair, even as a programmer it took me about 3.5 seconds of semi-concentrated thought to accomplish the feat.
[quote1268079266=Auron]
Alright, I haven't had any time to play with it this weekend but I just found this diagram at work which is oddly enough exactly what I'm trying to do with the exact parts... lol. I love the internets sometimes.
[lightbox=http://1.bp.blogspot.com/_4aP55hkI4n4/SGsbY5MoeNI/AAAAAAAAACM/G4ogUbh8QkE/s1600/rfid%2Bproject%2Bcopy.jpg|||][img:width=120&height=120]http://1.bp.blogspot.com/_4aP55hkI4n4/SGsbY5MoeNI/AAAAAAAAACM/G4ogUbh8QkE/s1600/rfid%2Bproject%2Bcopy.jpg[/img][/lightbox]
I got my arduino from sparkfun I believe. Its kind of fun to have sitting around to create little projects here and there with. I'm more of a software guy but occasionally like to bring my nerdiness to RL.
[/quote1268079266]
Thank you for properly posting your image Auron, unlike Brains who is intent on fucking shit up.
[/quote1268081814]
To be fair, even as a programmer it took me about 3.5 seconds of semi-concentrated thought to accomplish the feat.
From that image, which you say is from another project, the jumper settings indicate you are powering via USB. From what I can recall, a single USB port can source 500 mA of current, which I believe might be changeable in the BIOS (not sure, and 500mA is probably a max) .
Before I begin, this is all speculation because I have absolutely no idea what you are trying to do and how you are trying to do it. I have no idea of any of the specifications within the system, and so I will give you my first impressions I would think to check in my troubleshooting process.
Note: I am assuming that all of your programming and logic is sound, and functioning properly. If you are not sure, check your shit (especially from runaways/stack issues when your code is interrupted, that is, if you are using interrupts). If you are using a PWM register, there could be interrupt conflicts.
Again, since I know absolutely nothing about how you have it set up and what you are trying to do (aside from the general picture), my very first inclination would be to check the current draw of the servo motor and the RFID coil. If the peak current draw at any time goes over 500 mA (from the USB power) you could undergo a quick processor brownout which could flag an interrupt. This could hang your program if the USB voltage level sags or momentarily cuts off to prevent overcurrent damage. Again, I am not 100% sure about how the USB power supply is regulated, so I could be talking nonsense here.
Another possibility is that IF the impedance of the servo motor is much less than that of the RFID coil/system and draws all of the current from the supply, de-energizing the RFID system to a point that it cannot effectively operate.
If any of this is the problem, consider powering your servo from a separate power source (if not the whole system). However, in the world of small circuits, 500mA is a lot of current. However, I am not familiar with your servo's specs, and maybe it draws a stunning amount of current.
Is the servo rotor loaded? Maybe that is the problem? Check to see if the motor, processor, wires or RFID chips are unusually warm.
Without any more info I can only continue to speculate wildly like a jackass. If you can't find the problem, PM me with actual information and I can try to help you find the problem.
Before I begin, this is all speculation because I have absolutely no idea what you are trying to do and how you are trying to do it. I have no idea of any of the specifications within the system, and so I will give you my first impressions I would think to check in my troubleshooting process.
Note: I am assuming that all of your programming and logic is sound, and functioning properly. If you are not sure, check your shit (especially from runaways/stack issues when your code is interrupted, that is, if you are using interrupts). If you are using a PWM register, there could be interrupt conflicts.
Again, since I know absolutely nothing about how you have it set up and what you are trying to do (aside from the general picture), my very first inclination would be to check the current draw of the servo motor and the RFID coil. If the peak current draw at any time goes over 500 mA (from the USB power) you could undergo a quick processor brownout which could flag an interrupt. This could hang your program if the USB voltage level sags or momentarily cuts off to prevent overcurrent damage. Again, I am not 100% sure about how the USB power supply is regulated, so I could be talking nonsense here.
Another possibility is that IF the impedance of the servo motor is much less than that of the RFID coil/system and draws all of the current from the supply, de-energizing the RFID system to a point that it cannot effectively operate.
If any of this is the problem, consider powering your servo from a separate power source (if not the whole system). However, in the world of small circuits, 500mA is a lot of current. However, I am not familiar with your servo's specs, and maybe it draws a stunning amount of current.
Is the servo rotor loaded? Maybe that is the problem? Check to see if the motor, processor, wires or RFID chips are unusually warm.
Without any more info I can only continue to speculate wildly like a jackass. If you can't find the problem, PM me with actual information and I can try to help you find the problem.
[quote1268088708=47]
try putting some water on he setup, Auron.
[/quote1268088708]
+1
try putting some water on he setup, Auron.
[/quote1268088708]
+1
[quote1268236095=Keeripes!]
Another thing to check is to see if the pin you are using to control the servo motor isn't a problem. Perhaps the servo control input is drawing too much current, causing a fault condition and enacting one of the processor's protection measures (once again, probably an interrupt)
[/quote1268236095]
Thanks for all the help mang. I have midterms and shit this week and since this is just a fucking-around project I'm working on in my free time it's fallen into low-priority status. I'll keep ya updated.
Another thing to check is to see if the pin you are using to control the servo motor isn't a problem. Perhaps the servo control input is drawing too much current, causing a fault condition and enacting one of the processor's protection measures (once again, probably an interrupt)
[/quote1268236095]
Thanks for all the help mang. I have midterms and shit this week and since this is just a fucking-around project I'm working on in my free time it's fallen into low-priority status. I'll keep ya updated.