Not able to connect to Arduino Board
Hello experts, I bought new Arduino Uno board and when I connect via USB that it came with, I don't see this board in Arudino IDE, it says "Arduino Uno on COM6 not connected", what does this mean, do...
View ArticleHow to change period in millisecond to microsecond?
Hi How to change period in millisecond to microsecond? //Simple trim-pot adjustable square wave generator //produces a square wave @ 50% duty-cycle //used with ATtiny-85, set internal oscillator to...
View ArticleArduino Nano upload error
Im tryna get my Sunfounder sloth robot test code to work, but it keeps coming up with some form of upload error. I've had access denied for COM4 port, semaphore timeout expired on COM3, and now that I...
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PWM to drive Power MOSFET - Is my circuit viable?
My goal is to power this electromagnet (the 1000N 24V flavor) with a dedicated 24V power supply, and then to use the Arduino Uno to modulate the magnet's strength. From what I've read, the most...
View ArticleArduino opens serial port; python cannot find it
MacOS Ventura 13.6.2 on M2 silicon. I have an OV7670 board connected to Arduino Nano 33 BLE Sense. I communicate with the Arduino over /dev/tty.usbmodem1101 (aka /dev/cu.usbmodem1101.) Python (using...
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Mega 2560 Ports
I used a Nano classic because it exposed A0-A7, of which I used A0-A6 to write 7 bits to the port simultaneously. Some of you might already see the issue. A6 and A7 do not work as digital outputs with...
View ArticleHow to get the Microphone (PDM) working with WS2812FX
The PDM example alone runs. Also the WS2812FX effects are working well on the RP2040 Connect. But as soon as I want to use both together (for sound/noise based effects) the board does nothing or...
View ArticleI have an idea...where do i start?
Hi all. So i have an idea and high level design of something id like tp build. Brand new to Arduino but have novice coiding skills. My question is: where can i learn about the Universe of modules...
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2023: The Year in Review
2023's Top Users Most Time Reading User Hours Read @xfpd 1.08k @paulpaulson 958 @fony 772 @qubits-us 721 @camsysca 707 @StefanL38 686 @PaulRB 676 @J-M-L 668 @jim-p 663 @alto777 662 Most Topics User...
View ArticleOled ssh1106 with Arduino
hey guys i will connect oled ssh1106 with oxygen and pressure sensor to show the percent and i made 6 pages to show it with delay but the PROBLEM that i want to control the pages with 3 buttons ( up ,...
View ArticleCompilation error - Collect2: error when adding library to sketch
Hi, I have a strange issue. I'm using arduino cloud and i have a compilation issue the moment i add the ESP Mail Client.h library to my current code. However when i run the ESP Mail Client.h library...
View ArticleWhat causes this error? (For Loop)
Maybe I am tired, but I don't see what I have done wrong (obviously something).... void transmitUniverseDMX_1() { for (byte i = 1; i < 11; i++) { switch (dmxuni_1TYP[i]) { case 1: break; case 2:...
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Esp32 and max30102
hi all I want to use max 30102 with esp32 nodmcu v3 i want to use sparkfun but i get this in so i dont now what i do and how to solve this problem for nowing i try to read spo2 ,hart rate and...
View ArticleRGB 24VDC with IRFZ44N
I have five RGB strips wich works with 24V and I want to make a controller for each one with arduino PWM and a IRFZ44N MOSFET. RGB strips: Connections: -R, -G, -B and +24V 24VDC 14.4W / meter Each...
View ArticleGiga Display Shield: SDRAM
Has anyone been able to store a copy of the screen to SDRAM then redraw the copy to screen? The code below gets close, but screen is garbled. #include <Arduino_GigaDisplay_GFX.h> //#include...
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Polls disabled - alternatives?
I thought it would be useful to include a poll in this thread. Proposed hardware troubleshooting FAQ tutorial type thread General Electronics This thread will list, in no particular order, common...
View ArticleHow to use AP connect with WiFiClientSecure
Hi, I want to remove the hardcoded details ssid/pwd from this script (but this sketch is a client. ?) How can I use a mobile to connect to access point and configure and make this sketch work...
View ArticleWind Tunnel Code
Hi! I’m completely new to this whole code thing. I really need to find code to measure Lift in a wind tunnel to see which airfoils would be the most efficient. I have the Aurdino Mega 2650 board,...
View ArticleSerial communication between 2 uc
(topic deleted by author) 1 post - 1 participant Read full topic
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Trouble with DMX512 using MAX485 and DmxSerial.h Library
I'm currently working on a project involving the MAX485 module, DMX512 communication, and the DmxSerial.h library on Arduino. I've successfully transmitted DMX512 data using the MAX485 module and the...
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