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1  Using Arduino / Microcontrollers / Can't upload sketches on 328-PU on Arduino Uno Rev3 on: April 14, 2013, 10:40:29 am
Hi,
     Recently I bought some ATMega 328PU microcontrollers. The chips came preloaded with Uno bootloader and blink sketch. My problem is if I remove my stock 328 P-PU and insert the new 328-PU into my Uno R3, I get error message. I have also tried to upload without & with editing the signature from 0x1e 0x95 0x0F to 0x1e 0x95 0x14 in the avrdude.config. I am not able to upload any sketches to it. Nor can I burn a bootloader on these chips by following the procedures mentioned. All I have is the blink sketch running by blinking LED on pin 13.
1) following is the error message (without changing signature)- avrdude: Expected signature for ATMEGA328P is 1E 95 0F
         Double check chip, or use -F to override this check.

2) following is the error after editing signature- avrdude: Expected signature for ATMEGA328P is 1E 95 14
         Double check chip, or use -F to override this check.

I do close the IDE and restart it after editing the avrdude.config file.

I have the following IDE versions a) arduino-1.0.1
                                            b) arduino-1.0.2

 I do not know what else to do. Please help.
2  Community / Gigs and Collaborations / Re: Source code required..HELP!!! on: January 07, 2013, 12:41:06 pm
 I do not have any code to get to the speed part. I have just opened programming textbooks!! I know nothing about coding as of now.
 However I want to say a thing, which is, a few days back one of my friends did this coding for a PIC mC on the same bike using the same sensor. I dont have terms with him anymore. That guy didn't use diameter of the wheel.
  The project was to actuate some solenoids once a certain bike speed is reached. All I know is he used some time period calculations to calculate and display the speed on the LCD and the best part was the speed which he got displayed on project LCD was same as the one being displayed on the bike manufacturer's LCD instrument cluster(its a 150 cc motor bike).
  Now I need such a code which can give me the speed on my project lcd. As I had said, I could use any I/O pin on Arduino for speed detection.
 I have the I2C LCD library etc and I can display anything on it from a sketch(I copy pasted the codes from net!).
3  Community / Gigs and Collaborations / Source code required..HELP!!! on: January 06, 2013, 01:02:57 pm
 I am working on a project which requires detecting speed of a motorbike and do execute some changes based on speed. The speed sensor gives 8 pulses per wheel revolution. I need to calculate the speed by detecting the pulses and display it on an LCD. I am using an LCD which uses I2C interface and it works fine. But I do not know how to: 1) Calculate the speed on the arduino and the display it on the LCD.
   Please help me as I do not know much about coding or hardware. Please provide me a code that I can use to calculate the speed and
then displaying it on the LCD (one revolution of wheel gives 8 pulses and I can connect the speed sensor input to any pin on arduino).                                                                                  
                                                                                      
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