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4 views

Continuous push button detection in for Stepper control

Currently i've working code of controlling stepper motor with pushbuttons. So, basically i have to press two push button to run forward and backward. but the problem is , when i press 1st pushbutton ...
-2
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0answers
12 views

Moving a stepper motor forwards constantly

How can I make a stepper motor go forwards constantly until I tell it to stop? I'm using a EasyDriver.
0
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0answers
10 views

http request with the A6 gsm module

I have been trying to implement a simple HTTP get request with an A6 GSM module, and am finding it very difficult, i couldn't get any useful docs or tutorial online to guide me through, all i could ...
0
votes
1answer
29 views

Arduino ESP8266 GPS integration issue

I am facing issue in using 2 Serial communication device with Arduino uno. I am trying to use ESP8266, Neo 6M GPS module with Arduino UNO, but only one of device is working at a time. Is there any ...
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0answers
25 views

nRF24L01 only getting 10 meters range!

I am making a project where I need to communicate between two devices that are about 300-500 meters apart and might experience a lot of RF interference and obstacles. So I thought for initial testing ...
0
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0answers
44 views

Detecting an incoming 7.875 MHz pulse to use as trigger

I have written a code that detects an incoming pulse (square) of 7.875 MHz to trigger the output High for the entire duration of pulse, and trigger the output low if the pulse is off or not detected. ...
0
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0answers
21 views

Port manipulation: Coding for two chips

I am using Arduino Nano to test a code that will be ported on an ATTiny chip, which will need to perform operations at a frequency near clock maximum, calling for a very succinct coding. My goal: to ...
0
votes
1answer
17 views

wdt reset cause:4, boot mode:(3,6)

I'm working on Python and nodeMCU with websocket connection. So, I send a string from Python to nodeMCU and nodeMCU collects the string and decodes to set values to a stepper motor. Initial code ...
0
votes
1answer
17 views

Which are the unused digital pins after L23D motor sheild installation on Arduino Uno board?

I have just started my first project on auduino. I have a arduino uno and a L293D motor sheild. I have installed the motor sheild upon auduino uno board and the motor sheild cover all pins of arduino ...
0
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0answers
8 views

How to fix why AT command gets no response from serial monitor for HC-05 Bluetooth module with Arduino Micro?

I am trying to send numeric data from master HC-05 to slave HC-05 Bluetooth module for the purpose of processing it. But I first need to pair the Bluetooth module. I have tried different tutorials and ...
0
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0answers
15 views

Infrared remote transmitter circuit [closed]

Hi I want infrared remote transmitter circuit having more than 10 keys for Arduino project. My application is control device using infrared. On reciver side I'm using infrared infrared sensor ...
0
votes
1answer
21 views

ESPTool 3-run stub fail error

I'm trying to program my NodeMCU ESP8266 ESP-12E module with AT commands. However, whenever I try and flash to my ESP8266 using ESPTool, I get a 3-run stub fail error. Can anyone tell me why I get ...
0
votes
1answer
33 views

digitalwrite with function parameter as parameter

Firstly, excuse my poor English, this is not my native langage. I'm trying to use an Arduino Uno to drive an 8 relay board from an MQTT Subscription. I ask for help because i'm some kind of beginner ...
1
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1answer
34 views

More effecient datalogging code

Background: I am using a Teensy 3.6 to data log over a dozen sensors. I am printing to Serial1 for local Serial access, Serial3 for remote access (via xbee, same data is on Serial1 as on Serail3, just ...
1
vote
3answers
1k views

Why are the Do While loops not stopping?

Ive been staring at this for a while now and I am going cross-eyed. I am writing a simply program to change colors of a 3 color LED. It is working, but then I noticed the LED would sometimes flash. ...
0
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0answers
29 views

Locate a second arduino accurate. Auto following bike trailer [closed]

My neighbor recently had an idea about a (at least nearly) wireless bike trailer, which follows the bike by its own. Now I try to figure out how to build the electronics. I want to send break and gas ...
0
votes
1answer
22 views

Weird effect of AVR C on USB-serial communication

I recently decided to learn direct port manipulation instead of builtin arduino routines. First I tried this piece of code void setup() { pinMode(13, OUTPUT); Serial.begin(9600); } void loop() { ...
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0answers
16 views

Uno WiFi Dev Ed - Example Sketch with UnoWiFiDevEdSerial1.h library by Juraj errors on compile

Example sketch does not compile, error message 'static void WiFiClass::init()' is private within this context IDE 1.8.13 Board Uno WiFi Dev Ed. I have been using this board for several years uploading ...
0
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0answers
35 views

Counting to 1000 In Both cores execution time problem in esp32?

I am trying to count to 1000 with single core and dual core with esp32 but the output(run time) dose not make sense, the time which takes a single core should be doubled compared to dual core in ...
0
votes
1answer
25 views

Please , explain about MAX30100 using for Arduino to read ADC in format (0-1023)

can anyone help me..? I am using MAX30100 with arduino, and my expectation is i can to process the ADC as usual (0-1023), but I do not understand the signal processing. Has anyone used the MAX30100 ...
2
votes
1answer
673 views

Why is this looping?

I am trying to do something very simple. I want the LED to fade from full brightness to off. This works... However, the LED turns back on to full brightness and fades again, in a loop. I am not ...
0
votes
1answer
28 views

Problems Sending Signals to the Arduino-Uno via Keyboard

I have an Arduino Uno and a usb 2.0 shield in which I connected a keyboard to. I have all the necessary libraries installed but what I am trying to figure out is how to light an led when I press a ...
0
votes
0answers
27 views

Why does this code only compile when moving the setup() function or using an older Arduino IDE? [duplicate]

The following code does not compile using Arduino 1.8.13: void setup() {} template<typename T,size_t N> struct foo { T t[N]; }; void ok() { foo<int,1> var; } void notOK( foo<...
0
votes
1answer
20 views

Which board to select in PlatformIO for ESP Wroom 32?

I'm quite new in this microcontroller topic and my next step is to make use of a wlan module, which is a ESP WROOM 32. As IDE I'm using Visual Studio + PlatformIO and I can't figure out how to access ...
0
votes
0answers
31 views

What would you change to make this circuit safer and more efficient?

I have a 24v battery bank and need to power a 24v pump for a duck pond. In my existing setup, I have a submersible pump with, effectively, a 100% duty cycle but this pump is not submersible and while ...
0
votes
0answers
10 views

HC-12 AT Commands not working

I'm currently working on HC-12 transceivers. Normal operations are fine and I was able to successfully transmit basic strings between an Arduino UNO and and Arduino Nano, both of which use HC-12s. ...
0
votes
0answers
27 views

Temp Sensor not working on ESP32

I am using SHT21 temp sensor with ESP32 using I2C. The sensor only reports temp of -273 and 0 for RH. The sensor is not faulty as I have tried this on an Arduino UNO with the same sketch and it works ...
0
votes
0answers
14 views

connect gy512 is not visible by i2c bus

I am a newbie. Please help to make gy512 visible on i2c interface. i did sda - a4 scl - a5 vcc - 5v gnd - gnd I have used i2c sticker scatch and use PC monitor.
-1
votes
0answers
31 views

Why am i getting this error when using AT commands with es8266?

I have an API http://innovations.thinkfinitylabs.com/test/comm/sens.php?key=f46fa009d3c6902ea2a805567c7ed4&val1=01&val2=02&val3=03&val4=04&Stat=1 which return a JSON response. When ...
0
votes
1answer
47 views

Is it possible to use Adafruit's Circuit Playground Express's 2MB storage in Arduino IDE?

I understand that the extra 2MB of memory is for circuit python. However, I wouldn't mind having access to 2MB of storage and using the Arduino IDE/low level C to access it. Is that possible? If so,...
1
vote
1answer
52 views

Why is my CNC shield smoking? Is it safe to keep on for long periods of time?

I am working on a project that involves moving stepper motors, and the device will have to be on for upwards of hours. I am moving the bipolar NEMA17 stepper motors using a Protoneer CNC shield V3 on ...
0
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0answers
22 views

How to connect an ESP8266 to my Arduino UNO with a CNC shield on top of it? [closed]

I am currently working on a project that involves using Alexa to control bipolar stepper motors via voice command, i.e., "Alexa, turn 2 revolutions." "Alexa, turn -180 degrees." I ...
1
vote
0answers
46 views

How do powering arduino both barrel jack and lipo battery together?

I have arduino mega and Lipo batterry such this and Lipo battery charger 5V USB Boost. I am powering arduino normally from barrel Jack with an 9 Volt adaptor. But if there is power cut occur, I dont ...
0
votes
0answers
18 views

How much power should I supply to L293d shield to run 4 tt gear dc motors and 1 servo sg90?

I'm new to Arduino. I am trying to making an obstacle avoiding car using Arduino Uno and L293d motor driver shield. Four tt gear dc motors and 1 servo motor were connected. How much power should I ...
0
votes
1answer
27 views

Arduino ESP8266 Wifi Shield GET request with LiteESP8266Client stops after few HTTP request

Below HTTP Get request is working but after few GET request(5-6) the code stops and once I press Arduino reset button then only it start working. Probably looks like something is causing OOM: // This ...
0
votes
1answer
30 views

how to fix mirrored text on 3.2 inch IPS TFT LCD Display ILI9481 480X320 36 Pins for Arduino Mega2560

i am working on a project on my arduino mega2560. I want to show reading of the sensors on the TFT display, the problem is the text displayed on the screen is mirrored. Since i am very new to arduino ...
0
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0answers
27 views

Need Help in Programming [closed]

I NEED HELP IN PROGRAMMING. A code for a line follower with 1ldr 2bo motor 1 motor driver 1 Arduino Uno. //////////////////////////////////////////////////////////////////////////
0
votes
0answers
21 views

Sending array of bytes using serial communication from Mega 2560 to ESP 8266

The array is 16 analog inputs, till now these inputs are not connected to anything so they are random, except the first three elements of the array, connected to GND, in order to see the beginning of ...
0
votes
0answers
17 views

Ultrasonic sensors not working

The target of this is for the system to print "Done" when distance, measured by 2 ultrasonic sensor, is between 6-17 cm. This is my python code: import serial arduinoSerialData = serial....
0
votes
1answer
26 views

Why is their need of response time needed in esp8266 AT commands?

I am writing an AT commands firmware for esp8266 via connecting it to atmega2560. Now the question is how will I come to know the response time for AT commands for writing its firmware to read the ...
0
votes
0answers
20 views

ESP8266 - Problem with LittleFS after reboot

I'm trying to create an even log saved on flash. I try to make it a class, called flashLOG as shown. Code behaves as expceted, reads, writes and posts it size and entries. The problem is that after ...
0
votes
0answers
9 views

ESP-NOW and WIFI and OTA at the same time on Sender and Receiver

I am trying to set up two ESP32s so that they can be updated via OTA and at the same time send sensor readings using ESP-NOW, from Sender Board to Receiver Board. For this to work both boards must ...
0
votes
0answers
20 views

Adeept Arduino Mega 2560 isn't recognized

So recently, I purchased an Arduino Mega 2560 Kit from Amazon, which was customized from this company called Adeept. But when I tried to plug it into my computer, it didn't recognize it. This means my ...
0
votes
0answers
14 views

ESP32 UART FIFO memory size [closed]

From ESP32 Technical Reference Manual: 1024 × 8-bit RAM shared by three UART transmit-FIFOs and receive-FIFOs None UART has own physical memory, they are just sharing virtual memory blocks in RAM, ...
0
votes
1answer
20 views

Unable to read Arduino+ESP8266 full get Response

Using below code I am able to invoke HTTP Get request, but I am not able to read full HTTP Response. Observing only output like( +IPD,0,141:HTTP/1.7. ). Please let me know how can I read full response?...
0
votes
0answers
28 views

Code is not looping correctly when running on battery

static const int dry = 570; static const int wet = 225; static const int RELAY = 2; static const unsigned long DELAY_1_S = 1000; static const unsigned long DELAY_1_MINUTE = DELAY_1_S * 60; static ...
1
vote
0answers
32 views

How to easily invoke Simple REST Service trigerred using Arduino UNO + ESP8266 WIFI Shield programmed with AT command?

My Question is How to easily invoke Simple REST Service trigerred using Arduino UNO + ESP8266 WIFI Shield programmed with AT command? I am new to this Subject and gone through many tutorial over ...
0
votes
0answers
27 views

ESP32-POE/ISO unstable after 10 days of power up

i have one ESP32-POE and ESP32-POE and i'm using the Olimex RS485 module to read a power meter that is placed near the ESP32 (5 meters of CAT5 cable - 9600 8N1). My device has this workflow (it's ...
1
vote
1answer
36 views

Why does my Wemos D1 Mini stops working while charging via solar?

I'm using an battery shield to recharge my battery. I want to use a solar panel, so I bought one (5V 240mA). I'm pretty sure, it won't recharge my battery fully, but that's not the point. I've ...
-1
votes
0answers
55 views

Create a traffic light system using Arduino [closed]

I'm a self-learner of Arduino code, I want to design a traffic light system. Can someone help me please!!! Thanks and Appreciate

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