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ESP32 Wake up from sleep on rising

I have a treadmill with a flywheel that sends "rising" interrupts. The "sensor" at the flywheel is powered off the 3.3v ping of the esp32 (power), the gnd and the 3rd wire that sees the interrupts is...

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Accessing free memory in the mkr1010 arduino

Hello! I am trying to access the amount of free memory by interfacing with the registers in the cpu. I have been having issues, does anyone have any advice? Thank you! 1 post - 1 participant Read full...

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SG90 is not working

I'm having trouble with SG90. I've tried several codes to test it but the servo was not working at all. However, it went out normally when I did the same test with another one. Then, I thought the...

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Need help with sysex message

I am making a MIDI keyboard to use with FL studio and I want to be able to use the REC, PLAY and STOP buttons with real buttons. If i sent the sysex message with loopMIDI and hairless-midiserial it...

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Problem with mq3 reading. Data too high

NEED HELP FOR MY PROJECT. Im using mq3 sensor as my main sensor in the project. Before this at natural air condition ( without alcohol) the raw reading for sensor is around 900-1100 But after a while...

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Adafruit neopixel mirror example

I've taken the AdaFruit Neopixel "standtest_wheel.ino" sketch and edited is slightly to only display a green "snake" going from one end of the LED strip to the other. I'd like to have the same effect,...

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Problems with Bluepad32+IMU

Hi There! I've recently restarted my hexapod project, the main reason being the RP2040 Connect seems to be a perfect fit for it... The problem that's currently blocking be seems to be unrelated to my...

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Parola Display Numbers

Hi All I am trying to display Numbers (From an "int") using "MD_Parola" on a 8x8x8 Matrix with 2 Zones I don't think "P.displayZoneText" is the correct command. Any help would be greatly appreciated....

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Ball interception

Hey guys! Does anybody have any ideas on this subject. Intercepting balls in midair by launching another ball. Thanks for you ideas! WB 3 posts - 2 participants Read full topic

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Tracking an object in movement

Hey! Would it be possible to track a ball in midair and determine its course. Thanks! WB 12 posts - 3 participants Read full topic

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Toggle switch on digital circuits?

Hello all, I'm a software engineer trying to get into the world of electrical engineering. I thought I'd start my first project and make a nixie clock (clicheI know) but I want very specific design...

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Applications of arduino in peltier cooling for dew collection

Hi, high school sophomore here. I'm planning to do a project on using peltier cooling modules and an arduino microcontroller to collect dew from air. Energy will come from a battery, which is powered...

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Arduino Nano Rsp32 Connect Battery

Hi, Currently I'm getting slightly confused with all the different directions and YouTube videos. My goal is to power the Arduino nano rsp 32. For that I have a Lithium Polymer battery 3.7V/820 Mah...

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Make the button differentiate between 2x and 1x press

How do you differentiate if the button is pressed once, light 1 is on and pressed twice, light 2 is on, then if you press it once, light 1 is off and pressed twice, light 2 is off, similar to a...

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Compressing GRAYSCALE image with ESP32-S3-WROOM Freenove

I have a ESP32-S3-WROOM module by Freenove which has camera and micro SD card module. I can take a snapshot a PIXELFORMAT_JPEG photo. However, when I change the pixelformat with...

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UNO R4 WIFI, Dynamixel Shield - Example sketches do nothing

I'm attempting to use a Dynamixel Shield with an UNO R4 WIFI to control a Dynamixel XC430-T150BB-T. This is my first project using an Arduino (or anything like it), so I am probably making some...

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GY-GPS6MV2 don't receive any satellites?

HI , My GPS module can get UART Data but it can't get any satellites. I find out te LED don't blink. and Pin-8 (10ohm) don't suply DC Power. Does it Normal?? === put the DUT 10 minuites in the outdoor...

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Arduino Uno not running anything, but built-in "Blink" sketch

I was using my arduino like normal and i just edited some code and while it was hooked up to my computer, it just turned everything connected to it off. The arduino is getting power, i made a simple...

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How to make a request every 2 minutes from an URL

Hey, so I'm pretty new to Arduino and started working with an M5 Paper, I'm currently trying to display images from a sever which are stored in an XML. That works fine, when I update the image and...

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Arduino_TensorFlowLite library has been declared as precompiled:

Arduino_TensorFlowLite library has been declared as precompiled: The precompiled library could not be found in...

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