Two micro processors and one eeprom?
Hello, I have a question. I have a arduino zero doign a lot of tasks such as logging, controllings lights, temperature and humidity sensors also monitoring low voltage and logging on the voltages too....
View ArticleButon ile led döngüsü
bir buton 7 led butona bastığımda led çalışma şekli değişecek en son başa dönecek ancak her buton komutunda sürekli döngüyü çalıştıramıyorum döngü eklediğimde buton kontrolü iptal oluyor (while , ve...
View ArticleOpen Energy Monitor (EMonLib) ESP program execution time
I am finishing up my sketch code for the Open Energy Monitor program that uses the EmonLib library. https://github.com/openenergymonitor/EmonLib The bench tested program execution time is alarmingly...
View Article[SOLVED] Get 0.00 when trying to print float
I can't understand why I keep getting 0.00 from this line: "float val = sensorValue * (5/1023);" The prints ok but the float is always 0.00 int sensorPin = A0; // select the input pin for the...
View ArticleHow do I get Arduino Mega on IoT
I have a project I’m working on but I want my variables to show on the IoT how can I connect my mega with IoT? 3 posts - 3 participants Read full topic
View ArticleCompilation error for SMARS sketch
Hello I am totally new to all of this so please be patient; I have built a SMARS robot and trying out with the Basic control sketch which during verify compile gives the error; exit status 1...
View ArticleHow to merge instances of a Library into new class
Hello, in my project I'm using multiple ADS7828 chips. There is a library available. The address bits allow to have four chips on one i2c bus. Is it possible to "merge" them into a new class? One Chip...
View ArticleUnable to recognize device under cloud but not the wed editor
Unable to recognize device under cloud, but works ok under web editor. tried adafruit esp32 feather, arduino nano IOT 33 all work under editor but not cloud. have install arduino cloud create ok. 2...
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Opinions on improving the system (ESP32, soil sensor)
Hi, I am currently working on a project that focuses on monitoring the soil parameters (moisture, pH, NPK, temp, EC, etc.) using industrial grade sensors and ESP32 as mcu. The prototype system that...
View ArticleScrew shield prevents Adafruit touch screen working on Uno R3
I have an Uno R3 which works properly with an Adafruit 2.8” capacitive touch screen. However, I then inserted a Duinotech Screw shield between the Uno and the touchscreen so that I could add a real...
View ArticleCómo puedo utilizar el SDA y el SCL del arduino UNO en vez del A4 y A5
Busca información para utilizar los pines SDA y SCL del arduino UNO los cuales trae integrado en vez de utilizar los pines analógicos 4 y 5 2 posts - 2 participants Read full topic
View ArticleWS2811 data corrupted at at connectors between ws2811 string light
I have ws2811 3 pin string lights that are 50 per string, controlled by arduino uno R3 and powered by 12v 300 amp. I’ve cut the string into several segments and used a 3 pin connector that is supposed...
View ArticlePCA9685 Problems on Custom Arduino Zero
Hello everyone, My setup is a custom pcb with SAMD21G18A-AU and level-shifter to PCA9685. I have already tested functionality of the microcontroller with other sensors. My problem is that when I...
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PCB Designer Needed (Please send quotes)
Hello, I have a small project described with images best I can below. I assembled the project utilizing premade modules for 1) ease of build out and 2) for the sake of the assembled project working...
View ArticleWhy cant I initialize SD card in my mega
Ok this code was able to test for Arduino Uno with my SD card in my 3.5" TFT LCD SCREEN, but I don't know why it is unable to use it for Arduino Mega 2560. /* SD card test This example shows how use...
View ArticleCorrupted characters when using "Serial.println();" AND Crazy BuiltIn led
I just bought an Arduino CH340G UNO and installed the lastest driver from the page (www.wch.cn) When i tried the "Blink" program (Arduino IDE 2.3.3), i notice how the led blinks like crazy, and when i...
View ArticleADS1115_Lite Library
Hi everyone , How to read 4 channels of ADS1115 module by [terryjmyers] (terryjmyers (Terry J Myers) · GitHub)/**ADS1115-Lite**library #include <Wire.h> #include<ADS1115_lite.h>...
View ArticleArduino Nano Speedometer
I want to ascertain rpm of a small wheel approx 20mm dia. This wheel is driven by another gear. I will then multiply by a ratio to give me output in screen. Need to be able to change ratio in code...
View ArticleEEPROM in a library
Naively I have tried to use EEPROM in a library I'm writing. EEPROM.read always returns 0, even though I can read the same memory address from setup and echo out the real, non zero, value. Apart from...
View ArticleMoving objects around in a 2D array
I am trying to intialize an array with all zeros and move an object the "1" around in the array 14 times up and down bouncing off the boundaries and then after 14 times it should stop moving up to...
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