Questions tagged [software]
Use this tag for questions relating to computer software used for interaction with the Arduino. For example, you could use this tag for questions about programming environments, or you could use it for PC/Arduino communication.
64 questions
3
votes
1
answer
140
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Connecting 3x 0.91Oleds (Using a TCA9548A 8-channel multiplex) and 1 1.51 Inch Transperant SPI OLED
As the title suggests, I have an Arduino Nano connected to a multiplex (which is connected to 3x 0.91 OLEDs) and an 1.51 inch OLED connected through an SPI.
The problem is that they just refuse to ...
- 31
1
vote
0
answers
80
views
Code not checking for updated sensor values after connecting to firebase?
I am using a project with an MQ138 sensor and want to push the real time sensor reads to firebase. Currently, the wifi/firebase part and sensor part work fine separately. The code connects to wifi and ...
- 11
-1
votes
1
answer
387
views
Using Arduino to allow continuous servo to go in the opposite direction
For my project I am using 6 continuous servos connected to an Adafruit Servo Shield. To run them I use
pwm.setPWM(0, 0, 1000)
and then set a delay to run them for how long i’d like to, then run
pwm....
- 9
1
vote
0
answers
58
views
pH code of Arduino SEN0169 refuses to output
Good day everyone!
I'm making my research project a hydroponics sensor that collects air and water temperature, humidity, conductivity, and pH, then sends it through a sim900a GSM module. However, ...
- 41
1
vote
1
answer
625
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Dealing with noise in arduino interrupt
I'm makeing two modules,
module2 gets sensor signal, and send wireless message to module1, with HC-12. Then module1 is going to do some work it is supposed to do. Circuit configuration is in the ...
- 11
1
vote
1
answer
230
views
Simple ModBus Master function 15
I have a simple setup with arduino Nano as slave and a arduino Mega as master
Can anyone explain how the function 15
FORCE_MULTIPLE_COILS
Works
i have been running some test on this
and cant figure ...
- 55
1
vote
1
answer
233
views
Boolean Logic With Chars For Motor Input Selection
Context of the code:
I am trying to control 2 DC motors through an H-gate, this means there are 4 inputs in total:
For DC motor 1: Input 1 (VCC) and Input 2 (GND).
For DC motor 2: Input 3(VCC) and ...
- 93
1
vote
2
answers
636
views
Hardware/software serial for HC-05
can anyone please tell me the whole difference between hardware and software serial for the HC-05.
I read UART,USB cable, serial and I was like really confused
so what is the difference and advantages ...
- 43
1
vote
0
answers
111
views
Need debug Software that can be used with Arduino IDE
Background: I have made a standalone Arduino board using Atmega328PB. I have written code for a clock which lights LEDs based on the time. After a day or so it locks up. Sometimes it reboots.
I ...
- 41
0
votes
1
answer
98
views
Can someone help me decipher the code for the arduino? I am totally lost
The code is as follows:
void loop(){
light = analogRead(5);
Serial.println(light);
analogWrite(3,light/4);
}
kkksrct
1
vote
1
answer
1k
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Random characters transmitted from ESP8266 to Arduino
Below is the code for getting a value from Firebase and sending the received data to arduino for performing necessary action.
The code here here sends a string "o" to arduino once
//uploaded to ...
1
vote
0
answers
45
views
Arduino not starting after 1.8.10 update
First off sorry if this is the wrong place.
Yesterday I updated the Arduino IDE to 1.8.10 and I was able to program a couple of hours.
Powering up my laptop today though the IDE is active, I can't ...
- 11
0
votes
2
answers
115
views
How do software interfaces compare to hardware interfaces in therms of speed and reliability?
The Arduino core includes numerous software interfaces mimicking the hardware interfaces provided by the chip and even extending beyond. My question is, if in a project I can either use software or ...
- 686
0
votes
2
answers
1k
views
"expected primary-expression before '.' token" in debug code
I'm making some code for school, and is adding debug code to it. When compiling, I get the error as written in the title. This is the code in question:
#define DEBUG 1
#ifdef DEBUG
#define Serial....
0
votes
0
answers
80
views
Effective Controlling of Continous Servo Motor
I have difficulty in controlling a MG995 continuous motor. For I know I can control the speed of the motor as writing servo1.write(p) , where the value of p changes the speed of the motor. When the ...
- 43