Questions tagged as 'arduino'

Tagged questions
2
answers

Arduino + Module SIM900 + PHP + MySQL - Problem POST method

Good afternoon everyone! I'm developing a project that consists of communicating a SIM900 module with an application, and making the interaction of the two will be a WEB server + database. The APP, Database and PHP page items are already w...
asked by 02.08.2016 / 23:38
1
answer

Vector of char by reference

I'm trying to pass a array from char to a procedure that will resize (with malloc() ), write its contents and return to main() . I know that every vector is a pointer and is already passed by reference, but something in...
asked by 01.11.2017 / 18:03
1
answer

Capture Strings Started with% t and% u

What modification can I make to capture the humidity and temperature of my serial port to insert a variable inside the variable that is printed on the serial port as% u0000 and temperature% t00.00. Generally with unique characters, example 'O...
asked by 26.09.2016 / 01:15
1
answer

Duplicating Information in SDCARD

Hello I'm studying the use of SDCARD in Arduino and I need to write the values of the sensors into a .TXT file, but it gets duplicate information in the .TXT file as it goes through the FOR loop, why? I'm cracking my ass all night, but I'm no...
asked by 29.04.2016 / 19:11
1
answer

Mac, arduino does not recognize the port imusb

I bought an Arduino UNO (I believe it is not the original), I downloaded the IDE, I installed normal, I connected the board (it was turned on normally, I went into the IDE on tools> cards and I selected Arduino / Genuine UNO, I went into Tools &...
asked by 06.12.2015 / 18:40
1
answer

Doubt working with multiple

I'm developing a Sketch and I need to use multiples of one, but I do not think I know how to work right with them. I have a FOR loop that goes from 1 to 72 and I need to count and go showing the messages on the screen. The problem is that you...
asked by 26.04.2016 / 22:49
1
answer

Doubt pinning Atmega328 [closed]

I'm using the Atmega328 in my project, and I was seeing the datasheet and I'm in doubt if the pins 22, 23, and 24 of the atmega328 works as Analog and Digital , I'm in doubt. Could someone help me? Thank you     
asked by 30.11.2015 / 22:05
0
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How to read and successfully process data received by the serial port in Visual .NET?

I have here a arduino that is to detect beats on a line signal audio level. Whenever detected a hit the arduino sends the b character to the serial port. So far I've been able to do it. Now I was trying to make a smal...
asked by 30.11.2018 / 21:37
0
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LEATHER LED - ARDUINO [closed]

Hello, I am a student of electrical engineering and I need to create a code that updates the reference values to light 3 different leds in all possible combinations, the programming language is for arduino. I need to implement a function that up...
asked by 22.08.2018 / 16:38
0
answers

Set matching password?

Good afternoon, I'm doing an android application to connect and communicate with an arduino via Bluetooth, my problem is in relation to the pairing, where I can not set the password automatically to pair with the arduino, but it asks for the pas...
asked by 18.05.2018 / 22:21