Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
Hello,
I am planning a semester research project to see if I can extend a battery's life before needing charging using ambient signals like RF, indoor lights, thermal etc. These are the presumptive materials I have come up with to do this. The Arduino circuit will basically show temp, humidity...
Hi folks, I want to share with you a product that my team and I have been working on for the past years to help breaking into engineering, and specifically, robotics easier for everyone.
We launched the first CYOBot last year as an open-source legged robot called CYOCrawler. It featured a...
This is a fun project to learn the Arduino Nano and how to build your own Adjustable Temperature Monitoring and Control Device.
At the end of this project, you'll have built and programmed your very own Adjustable Thermostatic Relay and learned many new things about the Arduino Nano...
I've attached the USB host cable to the USB Host pins on the Teensy 4.1, my midi controller comes on when plugged into it and I've created this simple sketch to print out the CC number of any messages received, however it's not printing anything. This code has been cobbled together from bits...
In this article/video, I used a variant of the Pico board (RP2040 Zero), a digital Bosch I2C BMP280 sensor, and a 3.2” SPI ILI9341 colorful TFT display to build a graphical temperature, pressure, and altitude measurement unit that can be used to monitor the home, workplace, mobile devices...
I am trying to build a remotely controllable aquarium LED light. I live in a country where DigiKey and Mouser are not a thing. Electronic components are hard or impossible to find in this country. So I'm limited to the parts shown in the schematic. And my skills are not yet adequate for...
Hi all,
I currently have a project where I want to heat a EMI sensitive device (DUT) with a peltier module. I started with an Arduino, a MOSFET driver module (IRF520N), a lab power supply, a temperature sensor attached to the hot side of the peltier-element (TEC) and a Peltier module with the...
JSON and XML are the most common data serialization formats. The Internet is a hub of billions of different devices, applications, and services. These devices and applications are built in different programming languages and around diverse platforms. For all these entirely different devices and...
Hello there,
I'm a newbie in Arduino, and I tried to make two battery-level indicators to be displayed on an OLED display. Once I uploaded the following Arduino code, it showed two battery level indicators with percentage values. One battery level indicator should only work with the voltage...
I am working on a project where I have to pulse a laser against a spinning, six sided polygon mirror motor.
https://www.precisionroller.com/motors-for-sharp-mx-3640n/products.html
(worth noting that i have them from china)
I am pulsing at the motor frequency x6 to get a single laser dot...
Hello,
My code has developed a weird glitch that I've been unable to properly fix. The symptom is that the code runs to a point then the micro resets and the whole thing goes in a loop. This is very typical of what happens when data is written to an array beyond its size, but I can not find any...
Nowadays home automation is a trending topic among electronic enthusiasts and even the mass population. People are busy with their life challenges, so an electronic device should take care of the home instead! The majority of such devices need internet or Wi-Fi for connectivity or they don’t...
Hello,
I am new to this forum community but I need your help.
We are starting on a new project to construct a two lane multifunctional mini bowling machine (small scale). The two machines will be controlled using a single microcontroller for the motors, switches and sensors, together with a...
Hi all
I've found a project that should do what I've written in the subject of the thread.
Arduino is connected to a VHF Intek transceiver.
What do you think the circuit in the red circle do?
Thanks
I have a conductivity kit from Atlas Scientific, but the ezo conductivity module is missing. I just connected the sensor probe to pin A0 on the Arduino Uno with the analogRead command in the source code. However, I'm still confused about the sensor output. Can I convert sensor output to...
Hi Folks,
just completed a course on creating a webserver using an Arduino Uno which allows for remotely monitoring and controlling actuators. This also includes visualizing the sensor data on really cool looking animated dials... Based on what I've learned (and I really learned a lot), I...
Hi guys!
I am currently working on a project for which I am in charge of the electronic circuit. However I have never worked with electronics before, therefore I am really desperate and unsure whether what I am doing is correct. If someone could help me out, that would be great! :)
So...
Hello Everyone I am working on a project in which I am interfacing ZMOD4410 with Arduino UNO. The Issue I am facing is that I am unable to read data from the sensor. To debug issue I used logic analyzer to see what kind of data is writing on the i2c bus, Here I found some strange result which I...
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...
Hello all, this is one of my first electronic schematics and I'm trying to make sure everything looks good (electrically) before I order board and components. Another set of eyes on this to criticize and give constructive feedback would be great and point out any issues or mistakes my circuit...
I am making a project that requires an accelerometer to be attached to the waist of a person that will detect the movement frequency of that subject. I have searched everywhere but I cannot figure out how to extract frequency from the accelerometer. I suppose it has something to do with the...
I accidentally hooked up the Arduino to a 12v power supply while using the Arduino Uno to connect to my screens and power them up, which made my board burn up in a heartbeat. I think maybe the 3.3v capacitor is burnt out, how should I repair it?
My board is normally connected to the computer...
Hi all, i'm very new with electronics, looking to get a better understanding.
I work as a HVACR tech and I've been looking into making an Arduino thermostat to use mainly on Panasonic's ducted inverter A/C.
The issue i'm facing is that i don't know how the controller talks to the indoor PCB...
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