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UART Communication Issue: Arduino Uno to Nano 33 BLE Sense Rev 2

Hey everyone, I've been working with Arduino Uno and Arduino Nano 33 BLE Sense Rev2, attempting to establish communication between them using UART. I followed a simple example provided in the Arduino...

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Need help formatting a POST request

First a little background. I have several projects that need to send SMS texts for various notifications. I use a service called Twilio to actually send those SMS messages. I was (and still am) unable...

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ESP32 SPI dual / quad mode output

Hi , is there a way to make this work with Arduino IDE ? 1 post - 1 participant Read full topic

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How to use portenta?

I am trying to upload this code on portenta H7 but when open the serial monitor there is nothing printing why? void setup() { delay(2000); Serial.begin(115200); Serial.println("Test"); } void loop()...

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Can i send messages to more than 4 esps at the same time using esp now?

Hi! I have been using ESP NOW for some time now but i can't seem to find the information to send the same message to various esps. I am able to send to 4 different but from there it doesnt send to the...

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ESP32 running DFPlayer - need earphone socket

Hi. As above, really I'm wanting t run a DFPlayer from my ESP32. I don't want or need to use speakers, but I do need to use a 3.5mm stereo. Can I simply wire the earphone socket into the speaker pins...

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Arduino Uno not connecting to my PC

Hi, Ive bought a new Arduino Uno R3 and an Arduino Mega 2560 few days ago. Ive connected and installed the driver successfully on my Windows 7 x86 PC for the Arduino Mega.But the prob is with the...

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Troubleshooting UART Selection for Arduino Mega using MegaCore

Issue Overview: I'm encountering difficulties when attempting to use UART other than UART 0 and UART 1 for uploading programs to the Arduino Mega using MegaCore (Idea came from: Uploading sketch to...

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60 LED WS2812 Clock using standalone ATMega328P

Hi all, Looking for some help, pease. I have recently built 4 of the 60 LED Neopixel clocks detailed in the following Youtube video - [https://www.youtube.com/watch?v=hyZMtKf4GrI] The clocks work...

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Using progmem instead of SPIFF - type conversion ?

Hi, While I stumbled from one I2S lib to another: XT_I2S doesn't work (sounds are distorted/chopped) ESP8266audio doesn't make it too easy to play different sound on a press of a button, though it...

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Can I Use Arduino on a Windows 11 Machine To Connect To Mission Planner?

I am building a quadcopter and plan to use an old flight controller that is no longer supported: APM 2.8. It needs to connect to an app called Mission Planner which is used to install the flight...

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A lot of incoming midi messeges cause synth

i want to use both recieve and send midi msg ( arduino 2560 pro and my synth) . i tried. when only (midi out from arduino to synth) is connected . working well.button are sending Prog change messeges....

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Setting up mDNS for Arduino UNO and w5100

Hi all. I can't configure the mDNS name for Arduino UNO with W5100 shield. Here is a short sketch in which the board receives an IP address via DHCP and must assign an mDNS name. I receive the...

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Ethernet library for PMC

Hi guys, What ethernet library should I be using for the PMC? Can't find the info anywhere. Thanks Rfsysint 2 posts - 2 participants Read full topic

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Libaries einbinden

Hallo ich bin Anfänger und möchte bei mir ins Projekt folgende Bibliothek einbinden (#include <Arduino_BHY2.h>) leider funktioniert dies nicht. Ich habe die Bibliothek öfter schon installiert...

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Pico & 64x32 Matrix

Hi, I was wondering if anyone has managed to use the Arduino IDE to write a sketch that runs a 64x32 led Matrix from a Pi Pico? Or am I wasting my time? Cannot find any Pico / Matrix examples other...

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Pin voltage limitation

Hi there: I'm trying to develope a powerful navigator for motorbikes and therefore it needs a sun readable display for outdoors use. I've been looking for such device on the internet, but after...

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ESP32 I2C with SMP3011 Pressure Sensor

(topic deleted by author) 1 post - 1 participant Read full topic

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Im trying to turn and LED on when I press it once and turn it off when I...

int led = 2; int button = 4; bool ledState = false; void setup() { pinMode(led,OUTPUT); pinMode(button,INPUT); } void loop() { if(digitalRead(button == HIGH)) { if(ledState == false){...

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Read MSEGQ7 from ESP32 (Read 5v from input 3,3v)

I'm trying to read the output of MSEGQ7 (DfRobot) from an ESP32. I have done 2 tests: Arduino Mega (works): - Analog input 0-5v - 10 bits (0-1023) ESP32 (not working): - Analog input 0-3.3v - 12 bits...

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