sensor

I am working on a project that has this piezo sensor I want to know how I can solder wire to it 1)What kind of wire do I need to use 2)Do I need to place any contact points on the piezo disc (contact are metal plate placed on some piezo) 3)What is the redial and normal resonating frequency in...

This is a system to detect any intruders using ultrasonic sensor . The buzzer should ring if the timer gets triggered . Somebody help me with the simulation using proteus or any other softwares

I would like to create an underwater fish detector - completely operating underwater (personal project) The enclosure will be a waterproof hollow cylinder (possible material to use are: acrylic, Polycarbonate or PVC), a PCB will be sealed inside that enclosure containing the sensor (the sensor...

Hi, im working on creating a step counter using piezoelectric disks. The idea is that I want to use the disks as sensors and be able to read their voltage and current values with an Arduino Uno. Im also using a voltage sensor, the sensor that will be used is an ACS712 that can detect the flowing...

Hello community, My name is Tommaso Bugliesi and I am currently designing a custom flight controller board. It's not just one board, but rather two boards to be stacked on top of each other using rubber dampers. The hole spacing is 30.5mm, and the overall dimensions of the two boards is...

During my PhD, I spent countless hours conducting optical experiments, where lock-in amplifiers became an integral part of my research. Their precision and effectiveness were unmatched, but so was their cost. Recently, while doing a personal optics project, I found myself in need of a lock-in...

A sensor works by outputting a voltage of -400mV to +400mV with a impedance of 1M Ohm. a. Design and simulate a circuit that only uses active components, such as an in the form of an OP-AMP so that the output reads 0V to 5V. Create the circuit in LTspice. Can anyone help me with this topic...

I'm currently trying to characterise a NIR 940nm laser device that I have recently made. The main thing I want to achieve is to see if the laser is truly doing what the enable signal told it to. I began with a rather slow square wave - 1Hz at 50% duty cycle. I used a ThorLabs DET08CL...

Hello All, I am working on IOT based Smart Irrigation project. In first phase I shall work on controlling water pump, right now my 7.5hp motor is controlled by "3 phase star delta starter". Could you please provide/point to web source for following queries? 1) Three phase motor don't have...

I'm back. Sorry about letting the tread go cold, but we got busy in the field. If I have new eyes and brains here, the old thread is here: Combine grain loss sensor questions | All About Circuits . We used the combine to cut rye, and I managed to catch (as a couple people mentioned) that I...

Hello, I am a farmer not an electrical engineer, but I have recently been trying to learn more about the electronics we use in farming. I have been trying to troubleshoot the grain loss system on our combine that hasn't worked in years. Keeping in mind that I am a farmer, as I understand it the...

I’m developing a Modbus RTU architecture. The master of this architecture is my Beagebone Black , which I want to connect via RS-485 serial communication to my sensors. Since I’m using RS-485 converters (RS-485 Converter) which need a UART input as far as I understand, I was looking for sensors...

I designed a circuit to process input from a sensor with a range of -300 mV to 300 mV. The desired output of the circuit is 0 V to 600 mV. To achieve this, I used the op-amp equation Vout = Vin + 0.3 as a basis for my design. However, when I simulated the circuit, the output was only around 900...

I need to integrate a Fuel flow sensor mentioned here to the car dashboard system, so as to display the flow readings on the dashboard screen and/or to a seperate display screen when fuel passes through the sensor . I'm specifically using this device which has a Working Voltage: DC 5V~18V...

Hi Everyone. Please go easy. I'm an electronics noob with little experience. I'm good with programming, mostly in Python. I've been messing with a 4.5hz natural frequency geophone and looking at ways to extend the bandwidth to 0.1hz at decent gain. I found a paper and got some help trying to...

Hi, I have a code that uses 1.1Vref (because the system is powered by battery) (ATTINY44A IC). I have connected one sensor to it and now i would like to read value of the sensor. Please check the code below. This code uses internal reference voltage and outputs unchanged voltage rating.(THE...

Now I detect motion with my Arduino Nano and 3pin motion detector: When detector triggers, I need to send signal (distance at least 5km) to another Arduino Nano and catch it. As far as I understand, 433Mhz is the optimal frequency for this. Please suggest me what should I use? Which circuit...

Hey guys so I’m trying to work on a wristband/bracelet that executes haptic rhythmic vibrations when the user is perceived to be stressed/angry (detected through their heart rate). I’m not very experienced in electronics so wanted to know what components I’d need to do this project.

I've been studying brain waves for a while and I want to do a project like this for educational purposes, manufactured TENS devices do not have an "audio input" they are programmed with an operating pattern, it would be necessary a circuit that "receives" the analog signal from the output sound...

Hello everyone. I have a sensor that I am continuously reading data from, at a constant rate, using python. Looking at the data there is obviously noise in it (bounces around when it should be zero or a constant value). After googling for 2 days I've not been able to find a way to remove the...