Questions tagged as 'arduino'

Tagged questions
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stk500_recv (): programmer is not responding on arduino

Can you help me with this error that bothered me for several days, I was trying to try a bluetooh module when all of a sudden this error started, I already tried this: -reinstall the ide -Update libraries and drive I get the same error in the na...
asked by 07.05.2018 / 03:11
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Why does CompareTo work in Boolean values? (Arduino)

I have this program that I found online and I'm trying to understand it, I do not know why the compareTo works in this code since it handles it as a value booleano and even where it is used to compare strings. This is the code:...
asked by 01.05.2018 / 00:59
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Emergency battery for ESP8266 e12

The reason why I ask for your help is the following, I have the problem that when the power goes out and my ESP8266 e12 module returns, it bounces the relays causing the doors to open and I tried everything to solve it using the software but it...
asked by 20.04.2018 / 07:38
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Problem sending data HC-06 on Arduino

I was trying to transfer data using an HC-06 module and everything was fine at first, since I could receive them via Bluetooth on my smartphone. But it turns out that after a while (between 5 and 15 minutes) stops transmitting, and I do not know...
asked by 10.04.2018 / 16:07
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Arduino random error

Edition 1: It seemed that the fault was a failure of wiring, which failed and from time to time makes a false contact. After disconnecting the pin 0 and having nothing connected, you still make the same mistake. End edition 1 I have...
asked by 10.04.2018 / 23:29
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Convert float to hexadecimal arduino

I would like to know how to convert a float variable into hexadecimal. I know that an int integer is done in the following way: Serial.println(numeroEntero, HEX); But for numbers with decimals and floating no idea, since I tried it and roun...
asked by 12.04.2018 / 10:57
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Pass variable by arduino library

I'm creating a new sketch in Arduino, but I have a problem, although everything compiles well without errors, it does not work, I do not know if it's a library or the sketch, to debug I would like to pass a variable that changes its value when g...
asked by 21.03.2018 / 17:56
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how to do fscanf () of matlab in octave?

I send data from arduino to the pc via bluetooth and I capture them with octave I use the function readtotermination [], but when plotting them in real time there is a delay when plotting and this does not happen in matlab. I use the control ins...
asked by 10.03.2018 / 18:00
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Error with digital arduino input

Hi, I have a question about my arduino, I'm trying to use an on-site sensor in an arduino one, this one throws a 5-volt signal or 0 v depending on whether or not it detects an object, my code is as follows const int pinLED = 12; int f; int pir...
asked by 09.03.2018 / 20:50
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TURN ON A LED WITH ARDUINO WITH A "1" AND SHUT OFF WITH A "0"

I have problems to turn on a led with arduino, you have to turn on the led when the user enters a "1" and show a legend that says "led on from the computer" and it has to be turned off when the user enters a " 0 "and show a legend that says" led...
asked by 23.03.2018 / 01:15