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Arduino IDE with a controller from MIT App Inventor

Hello, I have an IoT project using Arduino ide code script. The controller for the code is from the MIT App Inventor application. My project is in the form of a timer with a time that has been set in...

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Long distance, ground-based LoRa range tests

This recent video describes successful LoRa TTN data transmission from Picacho(*) Peak (elevation 3,370 feet), over 60 km to downtown Tucson, Arizona (elevation 2,200 feet). Looks like a fun climb,...

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Debugger - IDE 2.3.1 Breakpoint Issues

Have been trying out the debugger (with a Zero) and am having trouble with the Breakpoint "Hit Count" and "Conditional Breakpoint" features - IOWs I can't get them to do anything - the sketch breaks...

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Best way to place a HiLetgo 5V One Channel Relay

I am using the HiLetgo 5V One Channel Relay in my project, but I am not sure the best way to place it. It can't be slotted into a bread board. Anyone have good ideas? 3 posts - 3 participants Read...

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CardInfo example not in Arduino IDE?

According to In-Depth Tutorial to Interface Micro SD Card Module with Arduino it should be under File > Examples > SD > CardInfo. But it's not there? SD card library is built-in right? I'm...

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Trying to "calibrate" a heart rate sensor so values aren't skewed

So I am making a project that measures biometrics during exercise and outputs them both to the serial monitor as well as to a set of external speakers for use by athletes with visual impairments. I...

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Mega 2560 to MKR wifi1010 communication

Hello, very new here, and trying to learn. I have a mega 2560 controlling a green house. All of the functions work as expected. In trying to implement cloud visibility, I chose a MKR wifi1010 to make...

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Sending dht11 through IR

Hello there, i need an urgent help I'm trying to pass dht11 readings through IR transmitter KY-005 and IR receiver KY-022 The problem is that i can't realize to a solution for that I want only to send...

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A fatal esptool.py error occurred: Cannot configure port, something went wrong

Hey there,i currently doing a project using nodemcu esp8266, when i upload the code, it shows this output telling some fatal error. Anyone know what is this error and how to fix it? This project is...

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Nema17 does not work

Hi. I connected it like the picture, but the motor doesn't work. It doesn't even vibrate and it doesn't work at all. I used Nema17(17HS8401) and tmc2208. I used a 12V 3A adapter for the motor and...

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NRF24L01 Transmitter and Reciver Not working

I am working on a project where I want to transfer data between NRF24L01 transmitter and receiver. While the transmitter appears to be writing data, the receiver is not getting anything. The...

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MP3 player plays once but does not loop

For years I have successfully used mp3-tp-16p players. All of a sudden none of my sketches loop. It is very strange. I have tried using half a dozen different boards and several different sketches....

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Fatal esptool.py error occurred: Write timeout

When I try to upload the code, Arduino showing 'write timeout' error. How should I fix it? Thanks . Variables and constants in RAM (global, static), used 40368 / 80192 bytes (50%) ║ SEGMENT BYTES...

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Sd card connected properly but it still won't begin

hi i'm omar so i'm making a project with a micro sd card and a speaker,i tried testing if the sd card module is working or not by testing the "cardinfo" example from the SD library,it sayed it's...

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Whatever happened to reflective color LCD matrix displays?

I've been looking for a good while now for small reflective type displays to use for certain projects. Think of the display on the Gameboy Color and Advance, or the old color Sony Clie PDAs (which...

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Infrared sensor

hi so i was trying to use the sensor for detecting bank notes for my project but when i tried putting stuff for it to detect, the led at the sensor did turned on but the value in the serial monitor is...

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Debugger in IDE 2.3

It will be great with guide for how to use the Debugger IDE 2.3 with Mbed and also NANO ESP32. 4 posts - 2 participants Read full topic

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BT Mouse and keyboard examples using Arduinos official BLE library

It's really hard to find any working examples on how to make a keyboard or mouse with Arduinos official library for NANO 33 BLE. NANO ESP32 would also be nice to use. 1 post - 1 participant Read full...

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Battery Swapper 56v

I am looking for some ideas for a project I need to put together. I have a device that uses 56v batteries and I need the ability to automaically "swap" the batteries during the discharge and charge...

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Reverse ? error in serial

Hello I am running my arduino programm and evry time I run this sepcific command Serial.print("end gemisma"); Gemisma is a method name. Just the "e" is printed with a weird reverse question mark after...

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