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Results tagged with sketch
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user 2881
A sketch is compiled code that is uploaded to an Arduino board.
1
vote
Can you pass params to an arduino sketch?
Every ESP8266 has a unique MAC address. You could that information to distinguish between the different units.
Something like if( mac='00:0a:95:9d:68:16' ){ ... }
- 11.3k
1
vote
how to count blinking LED flashes using arduino uno boards and LDR?
LDRs only give an analog output, proportional to the amount of light.
To make it give a HIGH and LOW value, you have to tweak the other resistor used in the voltage divider.
Alternatively you coul …
- 11.3k
3
votes
Accepted
How can I set a calculated value when my sketch is uploaded?
The C compilers provide two macros that resolve to string literals: __DATE__ gives the time the file was compiled, and __TIME__ gives the current time of day. They output e.g. "May 31 2017" and "21:1 …
- 11.3k
1
vote
Accepted
Arduino LED lighting up when signal is reading low on multimeter
You left pin 3 floating. The multimeter will lower the voltage, resulting the the led lighting. Try enabling the pull-up resistor in pin 3 by adding pinMode(3, INPUT_PULLUP).
PS you might want to add …
- 11.3k
1
vote
Take an Arduino or Teensy prototype to Mass production - Loading software onto microcontroller
Arduino code is AVR code. There's no real difference. The only thing is that Arduino's tend to use bootloaders, which might cause a problem. But in your case I'd advice to not use a bootloader anyways …
- 11.3k
2
votes
Help with coding Arduino Nano to run fan through slide switch at specific intervals
You can't run the fan directly from an Arduino pin. The fan will require to much current for that to work. Instead connect the fan, via a transistor/mosfet to the Arduino.
Also add a (flyback-)diode …
- 11.3k