All Questions

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 ...

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

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 ...

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 ...

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 ...

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. ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

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. ...

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 ...

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() { ...

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 ...

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 ...

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 ...

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 ...

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 ...

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<...

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 ...

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 ...

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. ...

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 ...

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.

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 ...

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,...

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 ...

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 ...

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 ...

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 ...

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 ...

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 ...

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

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 ...

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....

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 ...

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 ...

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 ...

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 ...

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, ...

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?...

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 ...

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 ...

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 ...

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 ...

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