Too many arguments
exit status 1 Compilation error: too many arguments to function 'int analogRead(uint8_t)' here is my code: #define Sober 200 // Define max value that we consider sober #define Drunk 400 // Define min...
View ArticleArduino UNO MCU heating up during operation
I am utilizing an Arduino Uno to control a stepper motor with a holding torque of 8.5 Nm, paired with a DM860T stepper driver designed for a rated current of 6 amps. The driver is powered by a 48V...
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Stored calbration factor is lost after 1,5 h
Hi I have for months been running the same code on my 'ESP32 Wroom 32' without any problem. Now I see that calibration is "lost" after a short period, 1,5 h, system is made to run 24/7/365. My system...
View ArticleError with simultaneous external interrupts
Hello everyone, I am asking for your help with the following. I have a program with 2 external interrupts, sometimes it happens that both signals arrive simultaneously, when this happens the arduino...
View ArticleCommunicate with Arduino leonardo R3 without using serial comports
Is there a way to write a sketch to communicate with arduino without using serial ports. So here in theory how it should work you upload a sketch to arduino using com ports, After that sketch executes...
View ArticleProject code help
hello i am building a boat that fishes trash out of the water. now we have 2 codes that i smashed together in one big code but now my propulsion system doesnt work. let me explain the layout. the boat...
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Nrf24l01 not communicating with arduino
I'm using 2 arduino unos, both of them are cheap clones but one of them uses smd atmega and other one doesn't... I tried everything i could to make the smd one work with nrf24l01+ but it simply...
View ArticleRFID works without 3.3V and GND connections. Why?
I was working with an RFID RC522 using a Mega2560 Board. The pins were directly connected to the board. I am aware that the 5V pins should be dropped for the RFID. This is not necessarily a question...
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No i2c device found
What is the problem with the no i2c device found? I hope you can answer, thank you 4 posts - 4 participants Read full topic
View ArticleHow do conceal a touch sensor and have it still be able to read my finger?
I'm presently experimenting with a sensor connected to several LEDs. im trying to conceal the sensor. my initial attempt using a thin layer of resin resulted in the sensor failing to respond when...
View ArticleAbout the success rate of arduino
what was the success rate percentage that experts had predicted for the arduino before its realease. I am a student doing a research and can somebody help me on this 5 posts - 5 participants Read full...
View ArticleFor loop problem, IDE V2.0.4
Good day, I wrote this simple code, ATMEGA8A microcontoller void setup() { pinMode(1, OUTPUT); for (byte i = 0; i < 2; i++) { digitalWrite(1, HIGH); delay(1000); digitalWrite(1, LOW); delay(1000);...
View ArticleWhy doesn't my flip flop code work?
Below is the code to turn a pin LED on/off every alternate cycle of deepsleep - meaning the first time esp32 sleeps, the LED will be ON, esp32 wakes up and then when it sleeps again the LED will be...
View ArticleGps not working
in trying to make the grove gps work with seeeduino xiao im using the code i found on here https://wiki.seeedstudio.com/Grove-GPS/ i just want to make it print the longitude and latitude in a simple...
View ArticleNano ESP32-S3 not recognized after LED test
I have a Nano ESP32-S3 and I was testing out one of the digital pins (D12) with a simple LED circuit. USB cable from my laptop was used for flashing and for power. The circuit was just a small LED...
View ArticleConnecting multiple strain gauge
Hello everybody, I need help. I’m a total beginner in electronics and arduino and I working on a project aimed to get de strain of multiple part of a rocket structure. I was thinking to mesure the...
View ArticleReset when i open serial port from C#
Hello everyone . i have a issue with a c# program im writing , the serial device is not a arduino board but since arduino gets its reset from the DRT, the device expreriances reset-crash behavor with...
View ArticleExponential increasing a frequency output help
I'm using an ESP32, I would like to output a frequency to an amplifier to make a sound like a camera flash charging. Here's an example of the sound The frequency should start at 5000Hz and increase to...
View ArticleESP32 SIM800L sms length problem
Hi, I'm trying to send SMS via the sim800l module connected to esp32. Everything works except I can send text messages up to 70 characters and no longer. If I try to send even just one more character...
View ArticleBpm sensor is not working
bpm sensor is not working. Just I want to get data when I put my finger on it it print it to the serial monitor. But after some minutes it sens 0. BPM sensor is hw-827 6 posts - 3 participants Read...
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