arduino

Hi, I am currently trying to make an arduino based Power Meter. I will buy the SCT010T-D ct from YHDC. My question is the following. The ct says it has a DC 5v output at 5-10-20 etc Amps depending on the model. Does that mean the output is a sine wave with dc offset (which requires more...

I am using a water flow sensor and i want to keep track of flow amount for a month. So for that i am adding it the variable which of uint64_t type. Now addition works for uint32_t datatypes but does not work for uint64_t data types. is there any snippet or algorithm which can add uint64_t...

Hello! This is my first forum post so hopefully I'm posting in the correct discussion forum. Long story short, I'm looking for some microphone suggestions. I'm currently working on a project that is trying to record respiration with a small microphone positioned 1-2cm away from the mouth. So...

Hi all I want to detect a 12V signal using an Arduino Nano v3. I've decided to use a NPN transistor to do so. Is it a valid solution? I've tried the circuit and it looks like it works fine. I've tried to use the 100k res at the base but I don't really know if it's the best value. How to chose...

I have 3 AC to DC transformers powered by same breaker AC breaker: 1. 120ac to 48v dc 2. 120ac to 24v dc 3. 120ac to 12v dc 4. 12v dc to 9v dc step down to power Arduino 5. 5v dc sensor system powered by Arduino board and ground from Arduino board Is it possible to have one neutral/ground bar...

I need to build the motorized pinwheel project in proteus. Arduino 328 should be used as seen in the 2nd photo. I will be grateful if you could help me.

Dear readers, I followed this code at here and built its circuit. However, the stepper motor does not get enough power or even torque or speed so that when I can stop the wheels easily by slightly touching them? Are there any solutions for this? I have checked that my battery are all...

Hello! I am a beginner at Arduino. I need to implement a simple circuit to control various LED glow scenarios and their reset using tact switches. I request to please help me with this project. I am attaching the image of the assembly done on bread board. The circuit is intended to function...

I teach high school robotics and our introductory course uses Arduinos as the microcontroller. While I do like the Arduino Web Editor as they have fixed some of the bugs over the last couple of years there is one problem to the free version. There is a daily limit on compiler time and...

Hello, I m working on a project for understanding of milks boiling process.I will save and graph tempreture data via Arduino Uno(with Micro SD module module and RTC).I m beginner and I m figuring out projects technical requirements step by step. Component list D18B20 Water Proof Tempreture...

I’ve been helping someone overseas develop an Arduino controlled magic trick. It’s very frustrating remotely troubleshooting. She’s already burnt up two Arduino Unos. Then tonight, we were discussing the color coded scheme I’ve been using. Her husband appeared on our video call and asked his...

I have a pololu dual mc33926 motor driver shield sitting on top of an arduino mega 2560 driving 2 maxon 363789 motors. The arduino is powered by usb serial and the motor driver is powered by lityum ion battery pack. This works fine on one side of my robot. Additionally the other side has exactly...

I using the ESP-WROOM-02 (esp8266 core) as WIFI module and the samd21g18 as main processing unit. To test, I´m using the ESP-WROOM-02 DEV board kitc and an Arduino nano IOT which has also a samd21g18 MCU. I flashed the ESP-WROOM-02 via the ESP flash download tool with the [AT Firmware...

Hello, I've been attempting to use SERCOM2 SPI Master on the SAMD21G18J but have been unsuccessful. I tried the configurations with SERCOM0 and SERCOM4, and they both worked. The most intriguing behavior is that when I initialize the SERCOM2 SPI, all of the other I/O pins stop working as well...

I have 2 microcontroller in same board, one is ESP32 and other is Atmega 328p, I need to upgrade the Atmega firmware, but I need to go where the board is and do it, I would like to do online way, there’s a way to ESP32 upload the new firmware on Atmega? just send the firmware to ESP?

Need help simplifying this project as arduino is abit overkill for this application. I am abit noob at electronics and wondering if there are any IC's or modules that will simplify or make this project more efficient. Thanks. Description IR-1 and IR-2 are IR obstacle avoidance sensor modules...

Hi I have an ATMega2560 16U-IH chip connected to an FT232RL FTDI chip which is then connected to my PC. From the PC, I am able to see the FTDI chip but unable to communicate with the ATMega2560 chip. The wiring: PC (USB) -> FTDI chip: - see attached image +5v (red USB wire) to Pin 20 (VCC)...

hello dear friends, i am willing to start a project for ph-measurement: pH measurement has many uses - for example for all sorts of laboratory and industrial uses. i want to run a Raspberry Pi (or Arduino of course) to read pH, log it, and integrate it into a concept that runs more sensors...

Noob alert! I'm tinkering on my garage project, standard vehicle stuff - 12V lead acid battery, 3-phase stator, reg/rec. I would like to put few additions to its circuit. Being a rookie, I'm not sure how to approach this correctly in terms of providing safe 5V for these microcontrollers. I've...

As the title suggest this is a first draft of a custom PCB by yours truly. So as you may notice, I'm not an electrical engineer just a hobbyist. I used EasyEDA for this project, and to the best of my knowledge selected the right parts from LCSC component library. I would love if someone could...