Clik here to view.
Smart Turbine Sprayer
Hi everyone, I've been exploring the idea of creating a Turbine Sprayer for painting my car. While I know a basic setup involves wiring it into a box and using a garden hose regulator for airflow...
View ArticleArduino-cli on nixos
Hi, I am trying to use arduino-cli on NixOS, but, after giving arduino-cli update the command to list the boards is empty: arduino-cli board listall So I am wondering how the CLI detects the correct...
View ArticleHow to use GNSS with SIMCOM A7670SA
Hey! I recently bought a SIMCOM A7670SA (middle option with LTEGNSS antenna), and while I managed to use the LTE bands to send myself a message, I don't know how to use the GNSS part. The only...
View ArticleUsing the multiplexer with mutiple HX711 load cells
Hi everyone, i am new to Arduino and this is one of my first projects. I have an Arduino 1 connected with a 4x3 keypad, a LCD with I2C and i need to connect to 6 (maybe 8 in the future) HX711 load...
View ArticleClik here to view.
Does anyone have an idea what's going on with this code?
#include <DS3231.h> #include <LiquidCrystal.h> int Contrast = 100; DS3231 rtc(SDA, SCL); LiquidCrystal lcd(9, 8, 5, 4, 3, 2); void setup() { rtc.begin(); lcd.begin(16, 2); } void loop() {...
View ArticleClik here to view.
Help on controlling an HVAC panel
Hi all. I have an air conditioner zone control panel which i want to acheive 2 things Monitor the status of each zone Turn on/off the zone All this i want to use an mqtt broker to publish the topics...
View ArticleHow to achieve lower RPM on my motor
Hi all, I am using a 12 VDC motor for my bench system using an UNO and an BTS7960 motor driver. The motor is running on a belt with a gear for my incremental encoder, but it sees very little loads....
View ArticleESP32 ADC measurment with variable input voltage?
I want to measure the voltage of a LiFePo4 battery with an ESP32 and have two options connecting the battery to the MCU: The LiFePo4 can be connected directly to the 3.3V input pin since the ESP can...
View ArticleArduino mega 2560 and esp32 connection
I have a problem connecting arduino mega and esp32. My purpose for esp32 is to provide WIFI and send data to googlesheets or any spreadsheets. And all my components are connected to arduino mega 9...
View ArticleMeasuring AC current with ACS712, But only 0 is read,
I'm trying to measure AC current with ACS712 and Arduino Uno Board. I use Function Generator to generate AC source . I put 11k ohm resistor as a load. Then i connect ACS712 in Series with the Circuit....
View ArticleHow to force Opta reboot after fatal error - memory crash
I am trying to use Arduino Opta RS485 in a remote industrial environment. To be more robust, I would like to reboot when a SW "fatal" error happens ( e.g. memory crash ). After searching, I found that...
View ArticleI used it inside Arduino but it doesn't work
I can‘t run it #include<iostream> #include<stdlib.h> #include<time.h> #include<stdio.h> #include<winsock2.h> #include<conio.h> #include<fstream> #include...
View ArticleReally strange LED problem
I use a RGB led on a Arduino Uno. My program lit the colors in setup during a LED test and then leave all off. This works as expected. Then in my program I lit colors depending an value from a...
View ArticleI want to make a one way communication setup through Bluetooth connection
My project is about to make a one way communication. which means i used my phone microphone and lm386 amplifier. Can anyone gave me idea with the code and give opinion with current device...
View ArticleClik here to view.
Button tap can't be catched need suggestion
Hi all. I Found 'Single Switch Multiple Functions' from: Hackster.io Single Switch Multiple Functions Single tap, double tap, triple tap, four-tap, Hold, Single tap and hold. By Najad. which works...
View ArticleMinds-i drone issue
I have built and programmed a minds-i drone using Arduino and have gotten to the flight phase of the building. When I fly it the propellors start off at an okay speed but then seem to spin out of...
View ArticleDual Core Blink not working -
I just received the Portenta H7 and started running through the tutorials. The very first example one would try by running through the published examples is not working for me, which is very...
View ArticleError: Can't find interface/{programmer.protocol}.cfg in procedure 'script'...
Greetings, Am a new user to Arduino product and this forum. Had purchased a Giga R1 Wifi board and started watching a few SunFounder tutorial videos (cheap plug) but can't seem to find an answer to...
View Article*Please Help* Transmit GPS Data to Firebase Database via SIM800L
(topic deleted by author) 1 post - 1 participant Read full topic
View ArticlePort program with EEPROM.h calls from Arduino Uno to Portenta
I wrote a sketch which reads a scale using sparkfun's 7802 and their library, moves a motor using the accelstepper.h library, and reading an encoder via a DB9 connector. I wanted to increase the speed...
View Article