PWM converter, need help
Hey all! I've done some basic AVR programming before, but I'm not super savvy... that's why I need some help from the community with UNO. I have a little project where I need to capture PWM signal...
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Help needed stitching 3 working sketches together
I've made 3 nano based units each with own 0.96" OLED Display. Temperature, PH and EC for measuring the water quality of a marine (saltwater) Aquarium for Seahorses. The sketches mainly came from...
View ArticleMulti tasking structre for my arduino sketch
I have a digital scale project to measure both weight and height in a addition to keypad and a buzzer to enter the the some data The point that my scale should work in 2 modes the first mode is when...
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Measuring amps changes circuit behaviour
Hi there! There is something that is driving me nuts: I got a circuit thats running fine when it’s directly connected to my bench power supply. Also programming the mini pro is no problem. As soon as...
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RP Pico and Waaveshare 3.5"
I purchased a Waveshare 3.5" TFT (LCD) display and cannot get it to work in the IDE 2.2.1 using C/pico I'm running Win 10 with 32Gb of memory. Despite the fact they say they have C demo code for it,...
View ArticleUART Help - GRS arcade spinner to PC
Hello, first time poster here. My kid and I are trying to use a GRS arcade spinner (link below) to go through an Arduino to a USB to control a game on a PC (like pong, slither.io for example). We've...
View ArticleESP12E motorshield
Hi all, I have some questions,i have an ESP12E motorshield. My code are working for move forwad and backward,but i want to add like a slidebar for increase or decrease the power of the motor,How i can...
View ArticleExecution Time of Serial.print and Serial.println
I made a test of the execution time of Serial.print and Serial.println with this code and an Arduino Nano V3. The code uses is this: const int TestOutPin = PD6; int cnt = 0; int data = 123; void...
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ESP32-CAM cant be used
I'm testing an ESP32-CAM that I recently bought and haven't used before. To test it, I am using Arduino IDE and the CameraWebServer example, I put the password and name of my Wi-Fi, also I changed to...
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Cannot perform port reset: TOUCH: error during reset: opening port at...
I'm new to using the UNO R4, I started using it with a load cell and the Arduino IDE 2.2.1 and tryed to connect it to the ioT Cloud. While I was using it in the IDE it all went correctly, but when I...
View ArticleAffordable 16 bit DAC available for Arduino?
Is there a currently produced, UK available 16 bit DAC for Arduino? If not i'll get a minima and accept that, but I would definitely prefer a 16 bit DAC. 8 posts - 4 participants Read full topic
View ArticleDisplay countdown on 8x8 LED matrix
Hello, I am trying to display a countdown on one 8x8 LED matrix (while motor is working for 30 seconds), but I can't get it to work. I mean the LED goes blank for 30 secs, but nothing is being...
View ArticleLine Following Robot
Hello guys, I am new to Arduino and need some help. I am using a QTR-8A Refectance Sensor with a Adafruit Motorshield V2 on a Arduino Uno. Besides that, there are two DC-Motors connected on the Motor...
View ArticleNewbie Needs Guidance
Hello Everyone. I am so green here that you really couldn't even classify me as new to Arduino. I need to implement a system that is only a rough idea in my head, so the first thing I would like to do...
View ArticleCan't get Micropython code to install on Nano ESP32
The MicroPython Installer sees my board, but when I hit install I see this: Error running dfu-util: 'Command failed:...
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Servo myServo; Won’t work ,help
Hello guys I have a question I’m trying to declare a Servo but it won’t recognize it can you guys tell me what’s wrong 3 posts - 3 participants Read full topic
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Get PWM signal from iso 11786 to estimate tractor speed
Hi everyone, I would like to know the speed of my tractor to modify the fertilizer I apply. For that I would use the iso 11786 that is in the cab of my tractor. As you can on the document, this plug...
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Is this an HC-05?
I'm trying to follow this tutorial and rename my Bluetooth module Change the Name and password of HC-05 Bluetooth Module - Hackster.io I purchased this module from Amazon and when searching for a...
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Could not complete OAuth 2.0 token request
Hey guys. I'm trying to get a new access token using Postman following the manual, but I see the error. I have a maker plan and have already generated an API key id and secret. Could you please help...
View ArticleWidget weird behavior push button
Hi everyone, I am trying to take my project in arduino uno to the IOT, the thing is in my code, the physical one, everything is ok. the push button works fine with the INPUT_PULLUP pin thing... but...
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