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Bounce2 library modification

I have a nice project that has about 12 button inputs, and sends musical notes over midi BLE. Latency is very important as the human ear can detect latency as slow at 30-50ms. I just realized I can...

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How do I read an STM32H7 register?

Hello -- I am trying to read a register from the STM32H7 chip (GIGA R1). My first attempt was a simple fail -- void setup() { Serial.begin(9600); Serial.println(RCC_BDCR, BIN); } void loop() {} Error...

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Post number shown on thread doesn't match link

I've noticed a problem with post numbers not matching. Here's a snip of one post in a thread.   Notice it says this is post #5. If I do a 'copy address' (win10) this is copied: \Proposed hardware...

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WifiNINA HTTPS: server

I am using an MKR 1010 to serve a web page using the examples provided, however, the web page served is http and not https. How do I make configure my sketch for https? I have updated the firmware and...

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Distance of an object

Hey everyone! To get into context with my situation, you might want to see my previous post on the link bellow: Recognition of objects Project Guidance Hey guys! I wanted some guidance on a project...

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Getting Serial output from ESP32 S2

Hello. I'm trying to program ESP32 S2 but I can't see what is going on within it, since Serial.printf is not working. I know that there is a special procedure to upload the sketch on ESP32 S2 by...

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Pushbutton switch to single press

I’m very new at this coding thing, I understand the logic but have a lot of learning ahead of me. I am designing a gate opener that has a single open button, 2 limit switches and a obstruction switch....

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Checking if a MPU9250 module may be damaged

Hey, I've been working on a project of mine and after some advice from others, I have realized that I was using wrong voltage for the MPU9250 module. In every single video I've watched people were...

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Apple iOS: built in hardware backdoors

Many of you may have seen the news that five generations of Apple iPhones, over the last five years, all have secret hardware backdoors in them, and those have been used by unknown attackers to unlock...

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How to use Firebase with Arduino Uno

How can I use FirebaseArduino with ESP8266? I tried this code: /*Before Building The Project You Can Simply Test The Firebase Database Functionality Using This Code*/ #include <ESP8266WiFi.h>...

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Driving Hybrid Pulsed Laser Diode with Integrated Driver Stage 70 W Peak Power

Hi All, I am attempting to make my own laser jammer. After inspiration from the notchacotcha and not willing to spend $1000s on a commercial unit, I want to give it a go myself. I have purchased a...

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Distinguishing clients between AP and STA webservers?

Hi -- programming an ESP32... I can start an APwebserver, or a STAwebserver which respond on the soft AP or STA interfaces, respectively. Or I can start a WebServer and it responds on both. If I start...

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Ball finding arm

I’m making a ball finding arm using Ultrasonic sensors and using stepper motor. How can I use the sensors to send information to tell the stepper motor where to go? 4 posts - 4 participants Read full...

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I2c multplexing with micro, sht41

I am trying to use the Adafruit PCA9546A with two Adafruit SHT41 Temperature/Humidity sensors. I am using a ARDUINO PRO MICRO. The following code compiles and runs but the temperature and humidity are...

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How to avoid pulse jitter?

One of my programs is the version of R3, which uses interrupts for high-speed pulse output, and the interval between two pulses is about 1us. In the version of R3, a method is used to disable TIMER 0....

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Interrupts not working HidProxWeigand on Zero

I am trying to use the HidProxWeigand library from github with 2 HID iclass readers on a Zero. The code works fine with one reader, but when a second reader is used only one or the readers outputs any...

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3.5 Inch TFT Color Screen Module 320 X 480 Support Arduino UNO Mega2560

elecrow.openhardware – 27 Apr 17 3.5 Inch TFT Color Screen Module 320 X 480 Support Arduino UNO Mega2560 3.5 Inch TFT Color Screen Module 320 X 480 Support Arduino UNO Mega2560 | Elecrow online store...

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ESP32 - analogRead(A10) not working with WiFi

I am running into an issue getting analogRead(A10) to work with WiFi enabled on an ESP32 board. I've already had these boards produced at a FAB, so changing the analog pin at this point isn't...

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Programmer is pro grammar

Just sayin'. We could even change the way of spelling. I'm a programmar. 1 post - 1 participant Read full topic

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Arduino Uno rev 3 Not Appearing on Mac

Brand new to Arduino and just bought an UNO Rev. 3. I own a Mac running Mojave. I downloaded and installed Arduino IDE version 2.2.1. I plugged the USB into my PowerMac, but no comm port is seen. I...

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