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32x16 WS2812 FastLED.h Memory Problem
Hello! First time posting on an arduino Forum like this. I apolagize for any mistakes I might make. I'm working on a project using an Arduino Mega 2560, WS2812 Leds and the FastLED.h library. Its a...
View ArticleSonic Screwdriver Light & SFx with Attiny85
Hi, I'm trying to program an Attiny85 for a sonic screwdriver prop I'm currently building and run up to some trouble trying to make the microcontroller play a sound file and a light sequence at the...
View ArticleSerial print oddity
Have noticed gobbledegook being printed at beginning of first line of print... simple example shown below....... void setup() { Serial.begin(9600); char sdata[] = "asdfghjkl"; int ax = 20; int ay =...
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Water Tank Project - UPDATE
First of all, I would like to wish everyone a Great 2024. Secondly, I would like to thank everyone who helped me with the project I am about to discuss/update. In Aug. '23, I was finally able to...
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Need help for 2x7 segments display projet
Hi, I am new to arduino and I need some help for my projet. It is for a sport (dodgeball). It a box with lights, buttons and 2x 7 segements display (see images) I want that when you press the blue...
View ArticlePlace images in rp2040 on the website
Hello. I am writing to consult: " I am using rp2040 with a Wifi connection and I want to mount an image on the web page. I have used the instructions indicated by HTML code. however it doesn't work...
View ArticleArduino crashing at set point
hello all I have a problem with sending commands to a slave Arduino running GRBL, I have a test code that takes variables and builds a list of commands "Gcode" to the slave Arduino, it then sends a...
View ArticleArduino Starter Kit Project 15: Hacking Buttons
Hi everyone! I've been trying to get the last project in the official Projects Book working, to no avail. I dismantled an old pocket calculator and made sure I know how to trigger a button press on...
View ArticleArduino Nano ESP32 with TFT Touch Screen Display
Hello all, I am trying to set up an Arduino Nano ESP32 with this TFT Display and am having some issues with the touch screen. Using the TFT_eSPI library I am able to get the screen to display; the...
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I2S-decoder line-in compatible no BTL Bridge-Tied-Load or 20 kHz...
Hi everybody, as my next project I want to build a µC-based small synthesizer. So I was locking for I2S-modules. There is the MAX98375 which has even an integrated BTL 3W apmlifier. Though Adafruit...
View ArticleTransmitter (usb power source) to receiver in a separate building
Hello, This is my first post here and I have no idea where to begin with this project. Was hoping some veterans could set me on the right path for the project below: A Transmitter is plugged into a...
View ArticleHello! i have question.(Newbie) - nodemcu esp8266
Hello, I am studying Arduino and esp. I searched for the lack of information in our community and found this forum here. I apologize in advance for being a little awkward because I'm using a...
View ArticleUnable to print using Serial.print ("xxxxx") instruction
Hi, I am using the Arduino IDE 1.8.19 to interface with a ESP32 Dev kit v1. I can program the device and the program works as expected. The serial com is set to 115200 in both the serial begin() and...
View ArticleProgram not printing
Hello everyone, once again requesting assistance from the comunity. I managed to put a few libraries together, the code is complete, and it does compile, however the loop stops at the VL6180X TOF...
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MKR Wifi 1010 with pressure sensor noise
I am trying to set up a pressure sensor (this model) using an MKR Wifi 1010. Everything has been working ok, but all of the sudden, I start getting a LOT of extra noise from the sensor reading. Here...
View ArticleBackup Cell with Arduino DS3231?
I am a beginner in Arduino... My DS3231 (RTC) module is working well, but my Backup cell does not seem to work (The time stays the same after the circuit has been powered off) All I did was put a...
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Pins won’t fit in breadboard
I am trying to insert a switch into my breadboard, but the pins do not seem to fit. When I put the switch into the board, the switch is extremely loose, I can push it out of the holes by simply...
View ArticleHow to use std::atomic without compiler error?
Hi -- I'm setting up a wifi event callback and in the callback function I'd like to set a state boolean to represent the connection having been lost. My understanding is that this callback will come...
View ArticleSt7735/Ili9341 resolution problems
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