sensor

As part of my ongoing project, I need to drive a Piezoelectric ultrasonic speaker. I have 1 of each that resonates at 20khz and 25khz. The max my sine wave oscillator can give out is 5v RMS, and the max the speakers can handle is 20v RMS. So to get the max out of the speaker I need a...

Hello everyone, i have a roidmi eve plus with non spinning LDS(The sensor on top). The board you see is on the sensor assembly. I measure 5v coming to the board, and 2,3v on the pwm pin. The mosfet on the top left corner measures 2,3v on the gate and when i turn the vacuum on i have continuity...

I am currently developing a low noise preamp for a new piezo sensor that should be used as a hydrophone. Since I am actually from the signal processing domain the topic was quite hard to get into for me. The sensor is relatively new and not well characterized. The only specifications I have are...

Please take a look at the sensor board, the upper part is made of FPC (two-layer board), and the lower part is the data acquisition hard board (two-layer board). Description of the problem: The board reserved an LED without welding. The iic communication and serial communication of the sensor...

I want to make a PCB (based on arduino NANO) for the management of a nanogrid consisting of a PV Solar and Wind Turbine and two storage batteries it has to contain current/voltage sensors along with ADC that send the data to arduino NANO for handling (decision making and Data storage in...

Hi guys, I'm searching for a Through Beam Sensor to use in a boiler room. The beam can not be affected by open flame and smoke. I'm having trouble identifying such sensor, did any of you guys ever use something like this?

Hi all, I have some FSR 402 sensors that look like this: (Datasheet here) I also have some FCI clinchers that look like this: (LINK) Now I realized that I can add the clinchers only to a FSR without the pins. Can I trim off the end up to here: so I could add the clinchers? I would like...

Would like to make a simple car side-mirror simulator circuit. The side mirrors I installed (for better blind spot) do not have a dimmer circuit and I am getting LIN bus errors since the dimmer wires are disconnected. Would like to DIY something that fools the car into thinking it is...

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...