Search found 18 matches

Go to advanced search

by raspberry akash
Mon Jul 18, 2016 7:18 am
Forum: General discussion
Topic: raspberry pi not starting after burning out resistor
Replies: 13
Views: 1976

Re: raspberry pi not starting after burning out resistor

https://www.google.es/imgres?imgurl=http%3A%2F%2Faruljohn.com%2Fblog%2Fpix%2FChristmasRGBLEDLights_aruljohn.png&imgrefurl=http%3A%2F%2Faruljohn.com%2Fblog%2Fraspberrypi-christmas-lights-rgb-led%2F&docid=u2WageWOw5oG8M&tbnid=QRlCkp4PKtS2UM%3A&w=1659&h=1734&bih=643&biw=1366&ved=0ahUKEwib09zUyLjNAhUJax...
by raspberry akash
Mon Jul 18, 2016 7:18 am
Forum: General discussion
Topic: raspberry pi not starting after burning out resistor
Replies: 13
Views: 1976

Re: raspberry pi not starting after burning out resistor

Thank you guys for your replies. I ordered a new pi.... as for old pi maybe the polyfuse was broken and I wanted to resume my work asap. The circuit I am work is the same as this with external power source of 12v
by raspberry akash
Mon Jul 11, 2016 9:15 am
Forum: General discussion
Topic: raspberry pi not starting after burning out resistor
Replies: 13
Views: 1976

Re: raspberry pi not starting not even the LED on the board

I am sure I have not put more than 3.3v to GPIO pin but lets assume as per you that the SOC is burnt then how can I fix it?? this is obviously a different description of full details than the usual. show your full wiring diagrams and where you plugged things and what things you have got plugged in f...
by raspberry akash
Mon Jul 11, 2016 8:43 am
Forum: General discussion
Topic: raspberry pi not starting after burning out resistor
Replies: 13
Views: 1976

Re: raspberry pi not starting after burning out resistor

I left it unplugged for 2 days and today i started again but still its not working

BMS Doug wrote:Perhaps the polyfuse has blown?

Leave it unplugged for a day and see if it works again afterwards.
by raspberry akash
Mon Jul 11, 2016 7:36 am
Forum: General discussion
Topic: raspberry pi not starting after burning out resistor
Replies: 13
Views: 1976

Re: raspberry pi not starting not even the LED on the board

I was running python Tkinter on raspberry pi connected to led strip but the problem is the same as the computer gets hanged and then restarted but this time it didnt restart it got shutdown as some of the resistor got burned due to sudden excess current so how do I check which path is burned as rasp...
by raspberry akash
Fri Jul 08, 2016 11:20 am
Forum: General discussion
Topic: raspberry pi not starting after burning out resistor
Replies: 13
Views: 1976

raspberry pi not starting after burning out resistor

I was remotely running python code on raspberry pi. And all of a sudden the python code hanged and the remote connection was closed and the raspberry pi turned off. Does anybody know what happen.....and will the pi start again?
by raspberry akash
Thu Jun 23, 2016 9:17 am
Forum: General discussion
Topic: does xbee series 1 need microcontroller
Replies: 4
Views: 880

Re: does xbee series 1 need microcontroller

You haven't given much information about what type of LEDs you are using. If it is one of the common LED strip types, I would guess that this isn't possible without an additional microcontroller to deal with the accurate timing requirements of the signal that you need to send to them. I am able to ...
by raspberry akash
Tue Jun 21, 2016 9:56 pm
Forum: General discussion
Topic: does xbee series 1 need microcontroller
Replies: 4
Views: 880

Re: does xbee series 1 need microcontroller

What do you plan to connect the xbee to? You can configure the Xbee's with a virtual wire or I/O passing mode.For example you can connect one of the digital inputs on Xbee A to the digital outputs on Xbee B. I plan to send signal from 1 xbee connected to raspberry pi to another standalone xbee whic...
by raspberry akash
Tue Jun 21, 2016 11:53 am
Forum: General discussion
Topic: does xbee series 1 need microcontroller
Replies: 4
Views: 880

does xbee series 1 need microcontroller

But is it necessary to have xbee connected to a microcontroller to transmit and receive or is it possible to give 5v and ground and mount xbee on breadboard without any microprocessor or controller .
by raspberry akash
Tue Jun 21, 2016 11:29 am
Forum: General discussion
Topic: software pwm external source
Replies: 8
Views: 1364

Re: software pwm external source

That is what you are copying from, not what you have wired. If you're using bipolar transistors instead of MOSFETs, the pinout is totally different and you need a resistor in series with the base. Now with Mosfet its working but the PWM is not accurate. I know one leg is missing thats why I am aski...
by raspberry akash
Tue Jun 21, 2016 7:12 am
Forum: General discussion
Topic: software pwm external source
Replies: 8
Views: 1364

Re: software pwm external source

Have you got a drawing and photo you could show us of what you have wired ? https://www.google.es/imgres?imgurl=http%3A%2F%2Faruljohn.com%2Fblog%2Fpix%2FChristmasRGBLEDLights_aruljohn.png&imgrefurl=http%3A%2F%2Faruljohn.com%2Fblog%2Fraspberrypi-christmas-lights-rgb-led%2F&docid=u2WageWOw5oG8M&tbnid...
by raspberry akash
Tue Jun 21, 2016 7:00 am
Forum: General discussion
Topic: software pwm external source
Replies: 8
Views: 1364

Re: software pwm external source

What happens if you connect a single LED in series with a resistor instead of the transistor to the pin that you're using? Then it works fine but I have to control a 12v Led strip hence i am using transistor and an external source Ahh my bad...without transistor it works fine but with transistor it...
by raspberry akash
Mon Jun 20, 2016 2:07 pm
Forum: General discussion
Topic: software pwm external source
Replies: 8
Views: 1364

Re: software pwm external source

Jednorozec wrote:What happens if you connect a single LED in series with a resistor instead of the transistor to the pin that you're using?
Then it works fine but I have to control a 12v Led strip hence i am using transistor and an external source
by raspberry akash
Mon Jun 20, 2016 10:42 am
Forum: General discussion
Topic: software pwm external source
Replies: 8
Views: 1364

software pwm external source

Hi, I am using raspberry pi 3 and an external source of 12v to pwm RGB LED strip using transistor PN2222 6E .But when I connect the external source to transistor and LED is remains ON all the time irrespective of the GPIO output connect to base of transistor and emitter grounded and collector with L...
by raspberry akash
Wed Jun 08, 2016 8:17 pm
Forum: Automation, sensing and robotics
Topic: What RF modules for wireless LED pwm control?
Replies: 2
Views: 1842

Re: What RF modules for wireless LED pwm control?

I am also working on it...did you do this project ?
by raspberry akash
Mon May 23, 2016 10:12 am
Forum: General discussion
Topic: i want to use a raspbee to transmit control signals to anoth
Replies: 2
Views: 1011

Re: i want to use a raspbee to transmit control signals to a

i am configuring raspbee with the pi and i have some problems like i cant find any device to connect on deCONZ app. Also I want to use just 1 raspbee and 1 pi to transmit to multiple xbee without and any processors or controllers .The xbee should be connect directly just to an LED strip with 12V DC....
by raspberry akash
Fri May 20, 2016 12:06 pm
Forum: General discussion
Topic: i want to use a raspbee to transmit control signals to anoth
Replies: 2
Views: 1011

i want to use a raspbee to transmit control signals to anoth

i want to use a raspbee to transmit control signals to another zigbee or xbee connected to led.....is it possible?
by raspberry akash
Fri May 20, 2016 9:23 am
Forum: Troubleshooting
Topic: how to control 12 v led strip using pwm and raspbee(zigbee)
Replies: 0
Views: 253

how to control 12 v led strip using pwm and raspbee(zigbee)

i am planning to design a platform which wirelessly(zigbee) controls 12v led strip using pwm so that I can control the brightness and color temperature of led remotely........has anyone done it or do you guys have any idea

Go to advanced search