All Questions

I have a project which I will be starting next month, doing some research on how to implement it and the best tools to use. eg. I have a warehouse, the warehouse has four store rooms; A, B, C and D. ...

hi i am getting this error, im guessing i have a bracket missing or one in the wrong place. any help is appreciate, still new at this. thank you (code bellow) include include include ...

It is possible to split the project into server files. However, it looks like they all must be in the same folder with the.ino file. Is it possible to split project into several folders? I’ve got ...

I've assembled the TI RSLK Robot Maze Edition for a final project for my embedded systems class. Instead of using the MSP432P401R LaunchPad that came with the kit to control the power board, I've used ...

I have an Arduino Mega 2560, 1 Ramps v1.4, 1 NEMA17 stepper motor and 1 A4988 driver. I try to control this motor but i can't. I try to test my motor in the X-axis with my code, please help me if i ...

I want to connect my adafruit motor shield v2.3 to a touch board from bare conductive so that the motor turns when one of the electrodes is touched. I've tested the touch part and that isn't a ...

How can I save my output continuously EEPROM? Or is this even possible? Please help me out. void setup() { Serial.begin(9600); } void loop() { static unsigned long count=0; static float sum=0; ...

Please help me to choose module, all I need is only stable gprs connection. My system will once in 5-10 minutes send data to the server. I found modules as sim800, sim900, a6, a7. but which of them ...

I found a bunch of Arduinos (seemingly), but I can't identify the type. I first thought of a Micro, but the chip is a MEGA328PAU and the Micro should have a MEGA32U4 instead: I know it's also not a ...

I'm new in Arduino stuck in String to a dynamic byte array. My String: String Finalval="6D616320747820636E662031352033300D0A"; Dynamic Byte array: byte ft[]={0x6D,0x61,0x63,0x20,0x74,0x78,0x20,...

I found a link on how to connect MQ-2 Gas Sensor to Arduino Uno. http://electronicsprojectshub.com/how-to-connect-mq2-gas-sensor-to-arduino/ After I bought all the parts and tried it out, the sensor ...

The following code intends to read from serial port and write the data byte by byte to a 24LC01B EEPROM. // 24LC01B PINS // Pin 1, A0: float // Pin 2, A1: float // Pin 3, A2: float // Pin 4, VSS: GND ...

Given that I accomplished shrinking size of my project and with huge help here and on arduino forums, basically rewrited to atmel studio, my "fire cat" displays all(but 1 led, this was problem before ...

I am building a controller device based on a Arduino Uno Wifi. I am looking for a way to push updates to the board using a mobile phone app with a post or other method. I am currently running ...

I have a question. I made a system which includes a servo, a stepper and a wiper motor :) All these parts has one job to do and I can code it. But, I want to make 2 modes in this system Single ...

It is very simple device, 2 continuous servos FS5113R, rotates continuously in one direction. Here is device original content, which is this servo shield it looks like russian, and here is library, I ...

I'm currently trying to program an STM32 with arduino, but along the way, i encountered some issues with pin modes. To be more specific, programming certain pins to certain modes. Some pins have ...

The first one reads from sensors and displays it, the second code receives an incoming byte to control LEDs. I tried to combine it but i don't know why it doesn't work. Please help me out. I need it ...

The aim is to display a non-static html page depending on some variable condition. The code I created hast the problem, that the esp8266 is ressetting in the moment I request the page. const char ...

I am in the planning stage of chaning two ATSAMD21 with a Zero or Nano 33 bootloade r in a SPI connection. The rational for this is that i am in need of 30 pin GPIO expansion and using 2 mcp23s17 ...

i am trying to code for ultrasonic sensor, i could get the values of the distance in serial monitor but i want only 10 serial monitor readings I have tried 'while' loop and 'for' loop but i am not ...

I am interfacing Amonia Sensor RS485 output with Arduino Mega but not getting any response. i need to transmit {0x06, 0x03, 0x00, 0x00, 0x00, 0x04, 0x45, 0xBE}; frame to sensor then senor will send ...

I am searching for an Arduino program or function or technique, that will only run once at the time of installation. And, even if I reset my board it will not run. Only, if I reinstall it will be run ...

I have this(Wifi Manager - Autoconnect IP) program run in my arduino IDE. And I get the output in serial monitor as this Can Anyone help me in displaying my SSID and PASS in this serial monitor ...

I've got a 200 LEDs strip of sk9822's hooked up to a 5V 8A power supply. As expected, at full white, there's considerable voltage drop and the far end of the strip turns from white to amber. I wanted ...

We're supposed to create a Simon Says game for our final. My professor is telling me I shouldn't need to modify much with what I already have. but I'm so confused because it feels like starting over. ...

i'm really new to Arduino. I have Arduino Mega, a USB host shield and a barcode scanner. I'm using this library >> link and modified it example so barcode scanner worked (Got it from here) to read ...

I have a similar issue. I want to use the ESP32 with RS485. I have used the Arduino and this works well assigning pins, but it seems not to allow full use of the UART. I see the new uarts in the ...

The plan is to create a bigger project and to split the ESP8266 webserver-code over several modules (.h .c files). The main problem is that the ESP8266WebServer server is not declared in the index.h ...

I made a simple temperature controller on DHT11. I want it to work with DHT22 as well having the same code. However, I can’t find a way how to get known what type of sensor is installed. Is there a ...

Iam making an awesome christmas present a custom pcb badge. Everything works great with hooked up uno, but its heart is actually a Attiny13a, where I get ONLY around 1024bytes (mine code has 1944) ...

I recently got to code my own driver for the One-Wire-Bus specifically with the ubiquitous DS18B20 temperature sensor in mind for an application. I am running that code on an Arduino Mega 2560. ...

my LCD display connected to the I2C module displays a characters for 3 seconds after that it finely dimming and the square boxes displayed what can i do?.i am a student so i don't know what can i do (...

I am trying to connect my nodemcu 12E module to WPA2-entrprise network but not able to connect. I had gone through the Espressif Forum and GitHub but still not able to resolve my problem. here is ...

I Need a help in this code I am trying to assign the serial.write(OutData[i]) to byte data[]. Can anyone help me assign it. Here is my code #define ECHOPIN 11// Pin to receive echo pulse #define ...

I have one master and three slave devices and i need to send data to all the slaves @ time.is that possible if so how to check which slave has recieved the first

So, I got a Leonardo because I plan to build a device to draw MIDI CC curves on a touchscreen TFT to be sent over MIDI to a DAW. I'm in the initial testing stage, and got a basic Paint application to ...

I am using the excellent UIPEthernet library to get an Arduino Nano to drive an ENC28J60 Ethernet Shield for a UDP-based application. But I think the poor library has to do a lot of work to make up ...

I have a piece of equipment that has a USB output, that a flash drive gets inserted into, to collect data as the equipment completes its cycles. I need to make a device that can replace the Flash ...

Besides being a total noob I've been lurking and reading like mad over the last week to understand how to get my servo to move to X position when a button is pushed, have it wait Y time, and return to ...

I have made the bot ready but i am facing problem in coding. I don't knoe to code. I want a sample code. I want it to be controlled verbally using bluetooth module.

I am trying to print QRcode (not bitmap) on my thermal printer with Arduino and ESP32. I am using the same QRcode library and Adafruit Thermal printer library of this post. How to scale a bitmap (...

I have a problem like that....As I connect my Arduino to the laptop with the usb cable and the motor shield connected, my led won't turn on neither does the led on the Arduino. And the small chip like ...

I've a low power consumption regulator to get 3.3V from two 1.5V batteries. I'm going to use it for powering an arduino MKR (MKRFOX1200), so my question is where I should connect it, to the battery ...

I am a newbie here, Recently I was working with H3LIS331DL 3-Axis Linear Accelerometer I²C Mini Module Here is code for the X, Y, Z-axis. #include <Wire.h> // H3LIS331DL I2C address is ...

I want to input a hexadecimal data from cool terminal say like (05 00 02 03 00 04 00 E5) And convert the data to a float value say 45.3. Now that I have to preassign a float value say 45.3 in my ...

noob here So I am developing an interactive game that takes its input from 2 push buttons connected to an Arduino. There are 4 levels and in each level, the player has to press the buttons a ...

Hello, I have a 16x16 matrix to display a certain number and I can’t seem to set the text size. If you notice the picture it still has room on top and bottom. It does display double digits but there ...

There are a couple pins such as PB4, PA15, and the ones near it where it won't allow me to blink LEDs with. They are stuck at a constant voltage, one that is around 1.5V, which is lower than minimum ...

I am trying to get the L298N to work with a simple DC motor. For now, I have simplified the setup and the code to the basics to try to get it to work. I am using the following wiring setup with no ...