All posts for Arduino

• i did spot a flaw in my example code.
• problem with ulpoading sketch on arduino
• Dead Arduino Mega?
• how to power 4 dc motors and esp32-s3-wroom-1u at the same time
• Do I need to add/use protection (diode) with mosfet module?
• L298N motor driver help (@star and me)
• esp32-s3 help
• Transistor
• Rechargeable Battery Pack
• NEMA 17 stepper motor help
• Battery
• BB940 IR sensor help
• Buying USB C parts to use with Arduino Nano Clone
• cant get the A motors to work
• How to Set Up my Smart Helmet system
• Need help about assembling a arduino based ink plotter.
• What do Portenta Mid Carrier include?
• LNA help
• GPS Neo8M Help
• Creating a Smart Dustbin but stuck in detecting a mix of wet and dry waste?
• Flightsim A320 Radio panel (complete newb)
• Fixing PC
• LED only turns off when both buttons pressed
• DFROBOT SER0019 Servo doesn't works
• Relay not working with pumps
• Continuation of lcd display error
• RP2350 based PCB review
• Dedicated CC/CV modules for charging 18650 batteries?
• Matrix Wiring help
• ESP 32 over voltage popping sound
• PCA9685 16 Channel Servo Driver Power Supply
• Portenta USB-C cable compatibility?
• could anyone help me learn how to use a 8*8 Led matrix?
• Diy speaker
• Relay Pinout
• Need someone with a ESP32-S3 based board to help me debug a bare metal issue
• where to search for SMD part names
• MAX30100 OXIMETER SENSOR PROBLEM:
• Need Help Powering a project
• problem with A4988 Driver
• ESP32-S3 Supermini Battery Power. TP4056 Alternatives?
• LM393 mic dev boards be used for Music Visualizer?
• I just melted my ground wires and I don't know why :(
• Using mosfet for the first time. Found two different approaches. Can someone explain differences?
• Troubleshooting Cosmicwatch's Muon Detector
• dfplayermini is not communicating with arduino uno r3?
• Hey all,
• I have to bend the Arduino to get the ide to recognise it
• mega heating up a bit
• ESP32 Upload Code Error
• motor/gear sizing/type questions
• Exit status 74
• Panel Solar
• Elegoo R3 Bootloader Install
• How to flash the code? Arduino IDE > ESP32 Cam
• Issues with Relay and WaterPump Project.
• Battery issue
• Panel Solar on the payload for Atmosferic Baloon
• Has anyone tried using water level sensors with RO water?
• Touch Screen | Esp32 | Squareline studio
• wireless barometer sensor?
• whats the difference between pullup and pulldown
• can someone help me make my MAX30100 sensor work
• Connecting Arduino Mega to ESP32
• Esp8266 with robotdym dimmee
• How to identify which pins are electrically connected in a button
• MT3608 aint boosting(booster aint boosting)
• Arduino MAJOR PROJECT
• Nano 33 IOT unable to connect to the cloud after connecting to my wifi.
• I want to power my 6 SG90 Servos
• I don't know what OpAmp (operational amplifier) to buy
• Any RS485 hacker experts?
• Analog pins always shows 0
• LED Display (Custom PCB)
• Xmotion V3 – Motor Outputs Not Balanced, Causing Robot to Drift
• Help with motor selection
• electromechanical counter; can I get help on understanding how the mosfet/flyback diode interact?
• Weird behaviour on SHT41
• Anyone can help with PIR motion sensors?
• FY -1604b(4) infrared emitter not working
• Cleaning Magnetic USB Contacts
• TB6600 + NEMA 17 issues
• Arduino Leonardo as ISP ( programming for ATMega328P )
• Arduino and oled screen i2c problem
• GPS6MV2 problems
• Trying to add cellular to ESP32C3 (Seeed Studio) with BK-SIM7080G
• Battery powered project
• ATS2855
• Can't show anything on a WS2812B 8x8 matrix (arduino nano)
• Will the hc-sr04 be able to give inputs and outputs if i connect the wires in this way?
• NFC/RFID reader with two transponders
• thermal camera programing
• Old Drone Camera Hacking
• Arduino Mega 2560 Pro (Embed)
• Controlling A Video Overlay Device
• ESP32 with dual ethernet
• Hardware for temperature sensor system
• ⚠️ The ESP32 Cam isnt working
• Cant connect DFPlayer mini to ESP8266
• module cam OV7670
• Motor & diode.
• help with arduino micro
• TF-Luna
• Help With TMC 2208 Stepper Motor Driver
• What is the largest i2c OLED that can be bought, and what resolution would it be:
• Arduino nano-HC-SR04 with a coin vibration motor- pls help
• Solar powered temperature-controlled fan help
• BNO08x IMU Use with Arduino Nano ESP32
• Help with the NRF24L01 Tranciever module
• ili9488 SPI display not turning on / displaying anything
• I need help with the OV7670
• LED help
• DRV8834 stepper motor driver alternative?
• Barometer won’t work
• QR code scanner with Arduino Nano ESP32 and OV7670.
• Help for sounds using TTS
• Q: Does USB Power Delivery usually offer 12VDC @2A / Limiting 15VDC to 12VDC via DC-DC converter
• Digispark ATtiny85 Inputs doesn't want to work
• Arduino UNO on COM3 [Not Connected]
• MOSI not doing anything on pi pico on bare metal (no sdk)
• Playing .wav Files through Teensly
• What is the best pack to start robotics with arduino ?
• Help with a build
• Regarding microcontrollers
• Stepper Motor Randomly Changing Directions
• Soldering method
• Adruino / Teensy 4.1 - normalize voltage
• How to connect 5v digital signal to ESP32 GPIO (3.3v) pin
• SH1122 SPI display wont go over 180khz spi frequency aswell as updating "line by line"
• Where should i put the capacitor ?
• Cant Upload anything to my Pro trinket 5V/16Mhz
• Help with Arduino Nano 33 Sense Rev2 connection
• avrdude: stk500_recv(): programmer is not responding on Arduino UNO clone
• Arduino nano esp32 not getting detected
• Help connecting a FS-N18 dual digital fiber optic amplifier
• Finding Suitable Encoder for my DC Motor
• 3.5" TFT Screen ILI9488 shows only white
• Inconsistent LED brightness
• Why does my stepper motor driver heat up to 90+°C?
• CNC Drawing Machine
• Schottky Issues: how does it work?
• Small Arduino
• How to Connect this LCD to my Arduino R3 [Beginner]
• New sensor BMV080 on Shuttle Board 3.1
• HC-05 Bluetooth Module Not Responding to AT Commands
• nano serial chip broken?
• How do I write code by using datasheets and schematic?
• is it alright, if i connect my mega2560 and R3 to tx and rx?
• GY-BN008X with Arduino Mega 2560 Wiring Issues - Unable to detect device with I2C
• HC-12 problems
• Motor and esc have power, cant control them
• Sim module + Arduino cloud
• L293D driver Shield and ESC with Arduino uno r3
• Upgradable connections?
• DHT11 Humidity sensor not reading.
• Power supply for ESP32 and hardware
• Joystick buggy with ESP32
• Trying to get nrf905 to work
• HC05 Connectivity Problems
• Question about esp32 battery connection
• Questions about LiPo batteries
• L298N vs L9110
• esp8266 sketch stops working
• problem with potenciometers and diy simrig
• Servo Motor Not Working Correctly
• I need help with bootloading a atmega328p-au chip
• Need help in making a faraday cage protect against 2.4/5G Hz wifi.
• auto plant waterer
• Bidirectional I/O buffer
• Arduino nano help
• Soldering a parallel port
• Cant Connect to Arduino Nano V3
• Custom motor driver module
• what can i use to add Bluetooth and WiFi control to my arduino uno
• Problem connecting Arduino to Laptop
• Arduino uno R4 Wi-Fi not detected by IDE
• Cheap way to get startet.
• How do I power a NeoPixel display consisting of 1600 NeoPixels?
• wiring a TS 3.5mm jack microphone
• Need some help understanding a circuit
• Resources, tutorials, and more for this server.
• Wireing an Atmega to an FT230
• Shift registers for switch matrix and LED matrix
• Resistor on potentiometer
• Newbie question: Common Anode 4-digit 7-segment display circuit
• Arduino Uno heart boot animation not showing
• Can't upload code to arduino nano
• Project Prototyping
• DC motors and l298n
• Using P5 play with Adafruit express on replit
• does anyone know how to set this up?
• Send a signal down a wire, detect wire is open/shorted, & transistor on or off, send analog back.
• Motor CC turning (Project 9)
• does anyone know why my led isn’t working?
• I dont know the name of the switches i want
• I want a sensor suggestion
• TIP120 to "turn off" 5v power to connected sensors?
• my own dev board
• Arduino Pro Mini
• 3-lead chip antenna identification (continued from hardware-help)
• Controlling LED with a Relay
• How to drive a motor useing l298
• Welcome to forum channels!
• how to do a simple library sistem in arduino ide
• micropython 4x4 matrix input
• RBD Dimmer lib
• trying to get adafruit motor shield v1 to work on an esp32 arduino board
• ESP32-c3 built in usb cdc loses bytes?
• Error message is incomprehensible
• Problem with a Eeprom on my tinker cad circuit
• ATtiny85 hardware watchdog
• 4x MPU6050 not working
• Need help using Teensy 4.0 microcontroller on IDE
• DIY Halloween Project Help Needed
• DC Motor not Reversing Directions
• guys i cant do my beetle bot 3 in 1 it says 'servopulse' was not declared in this scope
• trouble with RD-03D sensor library
• STM32 with SD card hangs :(
• Rust
• MPU6050 + Arduino for CPR
• A function definition is not allowed here before the "{" Token
• Whats this thing?
• Need help optimizing 74hc595 updates
• Mega2560 Wifi / ESP8266 Bi-directional Comms
• Reversing something
• How to connect 2 bluetooth hco5 module which is connected to a nano each (bind)
• Help with TMP36 (Temperature sensor)
• Cant control speed of dc motor with potentiometer
• char to char* adds characters on the end
• pls help me and my grandma thanks
• Serial communication between ESP8266 and Nano not in sync or corrupted
• How to code a 4x4 keypad module similar to how t9 keyboard works, those old phone keypads
• the line-following car prefers the right
• sensor oximeter 30100 problem
• help with sensors + dfplayer code
• Fixing Timing Drift in Non-Blocking Arduino LED Blink Code
• Nano BLE Sense Rev2 - Why no proper documentation regarding use of Wire1 instead of Wire.
• Help me pls
• help with ir, pir motion, and dfplayer logic
• IDE is failing to connect to COM port
• Two devices with I2C and an Arduino Uno...
• RC Car help
• why it does not work, ive installed all libraries
• hi i need help
• ESP32-S3 Linux partition table
• [Fail to connect Azure IoT] esp32 connect to Azure via mqtt using X509
• Group project? Pixy Cam 2 block for Scratch?
• Arduino nano esp32 error code avr/ pgmspace no such file or directory
• Rookie Mistake
• Can you guys give me some basic challenges.
• Boundaries for a rotary encoder, and how to increment in only one direction
• Anyone have experiance in making oled animations?
• BMduino: Soil moisture sensor conflicts with HC-05 Bluetooth, causing write-only behavior
• Do people use Port Register Control?
• arduino array[]
• Help
• Countless errors
• I need help verifying code
• WiFi API Help - Status Code -2
• Serial vs printf?
• Arduino project 07 LIED TO ME!!
• help with distance gauging proximity meter thingamabob
• Need programmer with background in X-Plane flight sim
• help in coding
• Arduino Serial buffer overflowing/overwriten
• Writing C++ code without arduino IDE.
• Quadruped Spider robot ( IK )
• What is the best way to improve at coding?
• Darn millis()
• AI with Arduino and Python
• SPI device tree setup nRF54L15
• [ ] meaning in code?
• Esp32 wroom dev board scketch upload giving fatal error message on arduino ide
• Quadruped Spider Robot ( Inverse Kinematics help )
• Help my project for school
• New to arduino, my bluetooth code keeps breaking after a bit, also would like to improve efficiency
• flashing arduinos to make them readable as usb devices
• Triggering 5VDC Relay Using an "if...else" Command
• Code help with ESP32 tft display
• pls help me
• Esp32 Memory question
• How do I make a button press stay on?
• RPLIDAR C1 Not Detected on Arduino Mega
• I guess I hate coding.
• Im getting annyoed nothing works anymore.
• Stepper motor wont do anything?
• Uploading problem
• difference between Var != Var2 and Var = !Var2
• hmmm. Did Paul McWhorter lie to me?
• I2C bit bang functions
• Can you masterWizards give me homework.
• Help with IRremote library | sending:
• Calibrating a sensor;
• Should I use the tone or digitalWrite for the passive buzzer?
• Self balancing robot : PID issue
• How to use millis() like delays.
• Just a quick helping thing.
• Wow whats this error ting? Im scared.
• does anybody know how to build arduino with cmake?
• Int not kinda working?
• I'm very bad at coding and would appreciate any help🙏
• omg what??
• Arduino toggle button
• Alternative for WiFiUDP ?
• Arduino Steering Wheel
• Give me a mini coding problem involving while loops.
• Why do I need this?
• WiFiUDP Packet Loss
• Arduino Uno to Attiny85 float communication problem
• Error message "in expansion of macro" within FastLED library
• Optimize re-drawing the ili9341 screen in my code
• For Loops
• Can you connect the input of the membrane keypad 4x4 to actual text like a keyboard
• Need help with alarm setup.
• Help Thats IT
• Apparently my code's useless. Let's improve it.
• Help attaching LED to Arduino
• I need help with my code. I'm trying to make a code with PID control.
• nodemcu esp8266 loses connection unless wifi is scanned constantly
• Arduino Project: RFID
• 8x8 Matrix games
• coding help im new (LED)
• Servo Help
• Arduino R4 wifi webserver
• OGX360_T4
• help with arduino 4 wheeled robocar line follower
• Differential Steering
• Chess Clock coding
• Wifi R4 Controlling a Servo
• 2 NRF24L01 Pal/na modules communication
• "Compilation error: grpc: error while marshaling: string field contains invalid UTF-8"
• My LCD is lighting up but it does not show any text although I tried to code it already.
• i got exit status 1 and bunch of errors
• A problem while socket
• How do I communicate between Arduino and OpenCV?
• Oled Oval Eyes
• ESP 32 locking up
• RP 2040 - PIO programming in Arduino IDE on linux
• Double output in 16x2 LCD low level implementation
• Serial Monitor
• Receiving incorrect data through Serial
• How do I code the Adafruit Mini LED Arcade Buttons?
• Bluepad32 issue with Whitelist
• My setup is looping? LEDs and oled going crazy..
• BASIC STEPPER CONTROL WITH PI AND WAVESHARE STEPPER HAT
• I'm trying to make an override code
• Code not working
• Accessing arduino cloud api via python giving error 405
• Need help in Adruino Uno + MPU6050 + SIM800L EVB
• Recording sound as .wav
• how to attachinterrupt()
• Need help for inverted pendulum project
• Unable to report value over USB
• 2 MUX
• Keyboard using keypad and keyboard libraries together
• I need help with my Arduino project for school
• Code-Review For Save & Play Robotic Arm
• Part 3
• Part 2 of help!
• Can't turn string into a double SOMEONE HELP ME
• Save & Play Arm “Animation”
• Arduino Giga code crashes(board flashes red) "randomly"
• Timing LED challenge
• How to tag a post as answered:
• How to #define processor specific code segment? (eg: ATMEGA, ATTINY, ESP8266, RP2040, etc.)
• Why is my output not the same as the guides? Have i discovered an error in the reference material
• MP3 To PCM
• Arrays - Randomly choosing an element
• Human Following Car
• help pls
• Bluetooth module issues
• Get Website HTML
• Binary Conversion Selection of 8 bits first 4 bits are Bass last 4 are Treble
• compiling a library for an atiny85
• Best way to *listen* for known signal patterns
• Creating an 8 seconds timer with millis() and pow()
• Welcome to forum channels.
• Having to install the Arduino cloud agent everytime I restart my computer.
• What do Portenta Mid Carrier include?
• Access to Arduino Alvik PCB Schematic?
• Can’t log into login.arduino.cc
• OTA Uploading fail problem
• Possible code error in Arduino Docs ?
• Nano 33 IOT unable to connect to the cloud even though is connecting to wifi.
• Portenta X8 Fails to connect to arduino cloud
• Contact US page on arduino.cc not working
• Help understanding the Alvik power system
• Need help reactivating or activating new arduino forum account.
• Arduino UNO SPE Shield Modbus
• Uploading error?
• ESP 32 Sketch Error
• Arduino uno r4 wifi. Problem?
• Arduino Giga r1 wifi Display shield issues
• Something about AUG's
• Need help identifying "real" Arduino
• My port/board aren’t being recognized? Arduino not in device manager
• Blue tooth receiver for my PC
• Using TFT_eSPI is causing the SD card to not function properly.
• Cloud thing webhook reports inactive when webhook is active
• ESP32-S3 bootloader broken (?)
• USB UNKOWN all was working but know it's usb unknown
• Arduino Engineering kit Rev2 without Simulink/Matlab
• Tiny machine learning kit shield problem
• Arduino connects and works with IDE but doesnt appear in device manager and doesnt connect to excel.
• Uno R3 not detected
• Camera
• arduino ide 2.3.5 stuck at loading screen while 1.8.19 works just fine
• Arduino Alvik motor deadband values?
• Help understanding the code flow within the Alvik libraries
• Max voltage received by the Alvik motors?
• I hope this qualifies here - docs.arduino.cc page error - dead link
• Arduino Nano Matter with headers
• Make your own Uno no longer detected
• Build your Uno R3 no longer detected
• beginner tutorials for elegoo super starter kit
• synth shield audio in
• How many UART ports does the Arduino UNO R4 have?
• macro
• (Still looking for one) Could someone sell me a Teensy 3.5?
• Compare clone A. Uno r3 to og A. Uno
• Arduino Nano power options
• Arduino Uno R4 Wi-Fi not detected by Windows
• my arduino ide isnt responding at all and refuses to close ;(
• Uno R4 WiFi SWD debugging
• Well… Attempting to blow up an speaker with Scarlet Fire
• ESP32 Digital Picture Frame
• Ping Arduino server with py
• Mini HTTP Server Arduino R4 WIFI
• Kaleidoscope
• Ardu Eden - Greenhouse
• A custom camera for a custom etch-a-sketch. It self draws your photos.
• ESP32 SMART 🎲
• Simple Electronic Dice!
• silver finger v1
• Pong Scored with Sound .ino
• I built a 3D-printed multicolor robotic hand ! I’d love your feedback
• Arduino Nano Minecraft-Esque World Generation System
• cw data radio modem
• My 1st actual project, very amateurish but we start somewhere!
• POT LED PROJECT FOR BEGGINERS!
• this
• If it has a screen, the lorax shall be seen
• Tic-Tac-Mini V1
• SMART home phone controlled LED light demo
• Airport PAPI Lights Demo
• ESP-32 game console!
• Introducing WebScreen Serial IDE
• ESP32 On-Call Beeper
• Simple analog graph using C and wifi communication
• Wifi Robotic Arm
• Smart plant water level indicator device
• SNAKE GAME using 8x8 dot matrix lcd, buzzer passive for soynd effects and a joystick!
• i made my first project
• Software for a project I wanna show off - Program which uses the Epson M180 or M185.
• Smart parking alarm
• Smart cap for the visually impaired
• The classic radar, ive always wanted to build this since i saw it on youtube
• First Steps with Arduino and LEDs
• Inverted pendulum system with the Pico 2 microcontroller
• The MedjoulView-1S, 2nd prototype
• A basic Arduino OS simulation.Link:https://wokwi.com/projects/439988644143816705
• bike shifter, limiter and rpm reader
• Simon style memory game
• Lyrics Visualizer
• Smart desk assistant
• rfid lock
• Audio oscilloscope
• ArduinoMap
• LED Clock
• Smart IOT Wireless Switch for bedroom light
• simple Motion Detector Alarm.
• I 3D printed a functional steering wheel using an arduino pro micro for gaming and posted a tutorial
• Got my VRINSIGHT from 2009 working in MSFS2020.
• Arduino Vending Machine - https://wokwi.com/projects/438885775961384961
• Arduino Game Console
• i made a 'webshooter'
• Arduino Robotic Arm
• Inteligent Plant Watering System
• My digital dice
• DIY 3x3 Macropad using the RP2040-Zero and CircuitPython
• I built WeatherPaper, a minimalist device that shows weather info on an e-paper display
• ArduOS
• MY NEW PROJECT AND VIDEO
• 7 segment
• Steam engine (non functional pls help)
• Work In Progress Aerial Vehicle Tracking and Filming Rig
• OLED dice 64x48
• Camera in progress
• Multi-purpose ESP handheld
• 'game engine' for 16x2 lcd + keypad
• Honda accord instrument cluster simulator
• Dimmable USB-C powered LED light for gigs
• Arduino portable soldering station
• pcb design schmatic
• 386EX Hat
• My first esp project
• Modified roomba
• QTRMuxes Library
• Modular Garden Manager
• Robotic arm with ardiuno
• Breadboard controller held together with tape
• Hand held console
• 3d Printed Flashlight
• We Built a Rocket – We Need a Programmer! (Arduino nano)
• I created a smart motion detector alarm that sends SMS alerts — here's a free step-by-step guide
• LED Light up Project
• desktop version of “dancing anne” statue
• deltarune today
• Self sustaining plant
• Endo 01
• Imu6050 with 3D visual
• Autonomous obstacle-avoiding car using Arduino UNO and LEGO Techincs
• Snake game
• Motorcycle Dashboard
• Virtual pet game
• im making an adhd wrist smart watch to hold 100+ alarms and have nudges so i dont zone out
• Arduino Oplà Weather Station + Cloud compatible
• Rmc1
• Hello world
• Self made dot matrix printer that recycles parts from an old or broken printer
• Star Trek TOS Communicator
• NeoPixel LED Ring control
• Gas Detector
• Corexy marlin claw machine
• Motion Controlled Servo
• Temperature controlled vents
• How to make a *Obstacle Avoiding* Car with LiDAR Sensor
• Car
• Ultrasonic sensor “radar”
• Phone finder
• Mini Fallout pip-boy
• Animatronic plus Nrf2401
• Weather app 🌧⛅
• Animatronic + drive
• Laser cutter
• ultimate phone cooler
• Mobile UI on TFT Display
• Esp car controled thru WiFi
• Videos with sound via WiFi
• Gambling be like
• Custom IR Turret Inspired by HackPack (ESP32-Based)
• i made a wather station with ardiuno and when it detects rain it will send you a notification
• Arudino Alarm Clock
• Koopa pixel world 🗺 👾
• QUIZ OS🧠
• Pong game 🕹🚀
• Fruit Ninja using Gyro Sensor
• Project shattered universe
• Magic Mirror device
• Joystick 🕹 adventure
• Drive + animatronic eyes and mouth
• PIR motion sensor
• UpGrade Hot Plate
• Water level
• Here I am turning my 128x32 OLED into a monitor at midnight
• Motor connected with joycon
• ESP32 ALARM SYSTEM
• Fruit Ninja using Gyro Sensor[old]
• Cube
• WebScreen - A Hackable, Open-Source (Arduino based) Gadget
• Nrf2401 + l298N motor driver car with wireless joystick shield
• ESP32 camera with printer
• Arduino Alarm Clock
• Robot buddy to read books with me. Using chatgpt
• First perfboard project
• JBC Soldering Station
• 3d printed flashlight 10k+ lumen
• Ardunio bot but modified with first robotics stuff
• Behold the power of the nrf2401…
• Me make oga booga robot
• Joystick shield arudino
• I built a Lite Brite that can generate its own art using AI
• Simple Alarm System using arduino uno
• bomb from csgo
• square robot
• Arduino Turbidity Meter
• rc foam plane ( in progress )
• i made a custom Lite Brite.. that can play Tetris!
• IR sensor with Arduino
• resistance reader? Idk what its called
• Electronic dice
• Quick hack to find out where your code is spending it time..
• a mouse for disabled people
• 8088 CPU interface hat
• Some high res Epaper display
• MedjoulView-1 Smartglasses
• BitByte Upgrades . . .
• my ligth on, ligth of decting system
• ARDUINO GREENHOUSE
• I made a 3d sonar
• Welcome to the new Project Showcase!