sensor

Hi, I am currently working with a sensor platform to measure IAQ. One of the sensors that I am using is the ZMOD4410 developed by Renesas to measure TVOC. I am having trouble with the sensor's I2C. In the datasheet it says that the implemented transmission protocol is similar to conventional...

Hi, I am looking for Industrial Grade Wireless Digital-to-Analog Converters (DACs). These DACs should be capable of receiving and accepting wireless digital transmission from industrial grade wireless vibration sensors, convert it into its corresponding analog/voltage signal, and send this...

I want to use gas flow meter. I checked for some sensors which have given measurement in ml/min and some has in ml/min. I tried to convert the ml/min to m/s on google but got the result in m3/s. I am not sure about the flow measurement and units used in the datasheets. Is there any explanation...

Hi, I am currently doing some research work on different ways to measure permittivity of materials. In particular, I want to measure the permittivity of FR4 materials of PCB, and of an aluminium oxide block of approximately 0.5 cm^3, at 2.45 GHz. One idea I want to explore is how to measure...

Hello, I tried to breakout the BNO085. I used a known good design from Adafruit (attached the schematic). Now unfortunately it doesn't work. I written software for the Adafruit board and it works fine. Then I replaced the Adafruit board with my breakout board ("schematic_not working" in the...

(I am quite new to electronics and pcb design.) (necessary files are attached, tell me if you need something else ) ------------------------------------------------------------------------------------------------------------------------------------------- Hi everyone, I am making a MOSFET...

I am doing a project on automating a hydroponic system to grow tomatoes. I need a TDS sensor to measure Total Dissolved salts. I searched a lot for a sensor but I was not able to find a sensor that satisfies my requirement. I need a sensor that can measure high ppm. But, the sensors are only...

Hello everybody, I'm currently looking to add a differential pressure sensor on a design. Problem is: this differential pressure sensor is supposed to detect violent overpressures ( 200mbars) and I don't really care about it the rest of the time. I chewed catalogs from Farnell, Honeywell and...

Hello, I have a very general question concerning digital electronics: Given a sinusoidal voltage source (followed by its rectification circuit so that in the end the voltage is constant) and a final sensor (to be powered directly with the voltage source), why do I need to put a...

I'm working with a distance sensor that gives erratic readings when an object is <2". Here's a plot of MCU ADC counts (orange) and voltage input to ADC (blue). My first thought is to monitor the dv/dt after we cross the 2" threshold and ignore anything that doesn't have a linear increasing...

Hi all, I am working on an ultrasonic sensor for occupancy sensing. This device would drive an LED based on movement, and I was wondering if detection could be achieved the following way Where the sensors and the moving person lie in opposite sides of the wall, and the ultrasonic waves would...

I want to build a ir cloner and transmitter for electronic devices (tv, home theatre,AC,etc) with NODE MCU so that i can control all the devices over wifi with my phone. There are may tutorials for making this type of project but all of them include manually inputting the "ir code"(not sure...

How hard is it to make a DIY pressure plate that measures Horizontal, Sheer(Torque) and Vertical foot pressure forces like the Swing Catalyst Pressure Plate for golf?

Hi everyone! Firstly, I apologise if this is the wrong place to post! Over the last couple of years I've used a Weigl ProCommander PHX to control some event spaces from a series of push buttons. These have simply been wired from the PS+ to a terminal of a NO/NC push button and the other...

I made a 4' wide x 3' tall plywood practice wall, and drew an 18" wide x 10" target on the plywood. I would like to make some sort of sensor array that would be positioned about 1.5" off the plywood playing surface and sound a chime each time the 2.75" diameter plastic pickle ball tripped one...

Hi, this is E3JM-R4S4, brown and blue connect to power supply. I wanted to know is it either black or brown connect to +load and the white connect to 0V? If is it so, I don't see the electric flow.

Hi, I'm a high school student who is doing a physics research project on the Mpemba Effect and various circumstances that may permit it to occur. My current concern is with the apparatus that I will have to use in the experimental part of the project. In view of that, I would like you to give...

Hello, I am not too strong with building electrical circuits so I am just wondering if I could get some feedback on the circuit I built. I am trying to connect a 12V inductive sensor to a Raspberry Pi 3B+ 3.3V port. The inductive sensor is being used to detect a metal sleeve inside of a valve...

I'll try to be as concise as possible. I'm an engineering student tasked by my university to create a mouse trap that alerts caretakers the trap has gone off. There is already a product on the market that achieve this but need to be hooked up to a wifi signal. The problem is that the university...

Hi everyone! So at work we have several engine simulators and for the ones we currently have engine speed sensors connected to we went about it by using a DC motor spinning a magnetic pulser disc (found here) with the sensor mounted directly in front. Though this works fine, I'd like to start...