You declare variables in the scope of setup (), and you try to use them in the scope of loop (), so the compiler tells you that you haven't declared them to be used in the scope of loop () . . . . What's the confusion? Put your variable declarations before setup () by where all of your #define 's are and they'll be global.
avrdude: stk500_getsync() attempt 9 of 10: not in sync: resp=0x00 When I plug this in, I do see a power light. There are no cables whatsoever connected other than the USB. I have another Arduino UNO which works fine when I upload the sketch (I'm using the basic blink sketch). How do I resolve this? What kind of problem can it be?
I have the same error, when I was testing it I found that it was the bluetooth module, for some reason if it is to the current to program my Arduino gave me that error, my solution was to program the Arduino UNO without a connected module and it worked.
37 No. You can draw power from the 5v and VIN pins on the arduino. VIN is the completely unaltered input power before the regulator (it will be useless if regulated 5v is supplied directly). Outputting power is what the 5v pin is intended to be used for, not as a power input. From the arduino website: 5V.
Select File > Preferences... from the Arduino IDE menus. The " Preferences " dialog will open. Check the box next to " Show verbose output during: ☐ compilation " in the " Preferences " dialog. Click the OK button. Select Sketch > Verify/Compile from the Arduino IDE menus. Wait for the compilation to fail. You will see a " Compilation error: ... " notification at the bottom right corner of ...
After hours of Googling, I found a blog post by Dimitris Platis where he describes using an ATTiny85 with I2C LCD. I emailed the guy and he replied with a link to his LCD I2C ATTiny library on GitHub. Using this library with the TinyWireM and the right core, it instantly worked. My final setup is with a 4.7K resistor on SDA and SCL, I will add the final sketch in the original post under . This ...
Please don't hijack threads @araa-araaa. I have split your post out to its own topic. Hijacking is against the Arduino forum rules. The reason is that it may sidetrack the discussion, even preventing the creator of the topic from getting the assistance they need. It also reduces your own chances of getting assistance. This is basic forum etiquette, as explained in the "How to get the best out ...
This question is quite clear. What are the differences between an int, an uint8_t, and an uint16_t. I know it has to do with bytes and memory but can someone clarify me a bit? Things I want to kno...
Support for both Office versions 64 bit as well as Office 32 bit No more installation needed! All within the workbook I got rid of the selmaDAQ_Ver2.ocx and use API calls now Fully compatible to all previous PLX-DAQ commands in your code! Got rid of some old stuff like "Max row size of 65000" (Office limit is 1048576 rows with 64 bit) or Baud rate only up to 128000 (now supports 230400 and ...
I'd like to make three arrays of the same length. According to the documentation, Arrays must be defined as int myArray[10]; where 10 can be substituted for a known length (another integer), or fil...
