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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.

sensors

  1. I

    Project feasibility - Police Speed Gun

    Hi everyone, I am currently a rising senior majoring in computer engineering. I wasn't able to secure an internship this summer so I wanted to come up with ideas for projects. One of my project ideas is creating a police speed gun that uses LIDAR to measure the speed at which a vehicle is...
  2. D

    Detecting DC voltage threshold and firing a relay or switch (Automotive)

    Hi everyone. I am junior level electronics hobbyist and I'm hoping to get some help designing some kind of voltage switch for an automotive application. Precisely what I am trying to do Detect if the DC voltage on a circuit is above or below a certain threshold (say 1.0V) with reasonable...
  3. C

    IoT Webser using Arduino

    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...
  4. I

    Is replacing my pulse sensor with an electronic circuit a good idea?

    Hello Community! During My project of "removing motion artifacts from the PPG signal" I faced many problems related to the pulse sensor that it didn't give me any good signal, and it is for commercial use, that's why I decided to build the sensor and replace it with an electronic circuit using...
  5. SeanYB

    Question about sensors

    I am now starting to test the wall vibration experiment, which requires a large number of vibration sensors. I have some doubts there: 1. Do these sensors need to be affixed to the wall, can they be affixed directly with tape? 2. Are there any particulars about the distribution of sensors? 3...
  6. T

    Metal Ball Detection

    I am a student from mechanical background in my final year of college with a little knowledge of sensors and circuits and need a few ideas to solve this problem. There exists a brass tube something of this sort as shown in image in which oil would be immersed, with a metal ball inside and the...
  7. D

    how work with TCD1304 AP ccd line sensor

    hello every one for a project i need to work with a line sensor TCD1304 AP . here it's the data sheet link http://www.spectronicdevices.com/pdf/TCD1304AP.pdf i don't know what's the exactly protocol of this sensor how i should use this ? what kind of processor i should use ? will a esp 32...
  8. P

    Dual motion sensor circuit - questions

    Hi, first time poster here and electronics beginner. I wonder if anyone can answer a question or two few ... As a follow-up to this post: the gentleman wanted to create a circuit to control a strip of LEDs along his driveway using a motion sensor at both ends. I have been looking for advice on...
  9. P

    Suggestion for a Sensor

    I am going to start a project where I need to check that if the cricket ball is hitting on a particular area on ground second the speed of this cricket ball. I need one solution which can fulfill my two demands. For this, I need a large area(200mm x 200mm)sensor with low power consumption and...
  10. daniela18

    Electronic Circuit -Help :D

    Hello, My name is Daniela, I'm student and I need help to anyone who can help me :D Project goal: Control the temperature inside a closed chamber I need help to connect the all components and I don't know how because I'm new in this . I don't know how to amplify and to maintain the current...
  11. S

    Is there anyone who has worked with Sensirion SPS30 sensor?

    The problem I'm facing is how can I verify the measured data is it correct or not? And whether the sensor will give any value in Zeros or not? Below is the file in which I'm getting data packets but mostly the values are the same every time.
  12. M

    Ideas to detect when someone is trying to detach an object firmly attached?

    I'm designing a tracker for assets. I want your suggestions to implement into the circuit a method to detect when someone is trying to remove the tracker. I was thinking of surrounding the board with touch pads all around the edges of the board but I guess that would be very sensitive to noise...
  13. M

    How do I get the position of something using PIC microcontroller?

    Hello everyone My name is Mauricio, I'm new in this forum. I am student of the first semester , so I do not know that much about electronics, I got really interested in this kind of topics and I am trying to make some little projects for the microcontrollers PIC using assembler coding. I have...
  14. SciFiOne

    Signal Sensor Processing CPU

    I need help designing a circuit to control a servo motor, the model i have is an SG 90 (9g) It needs to be controlled by a sensor that receives and input from a moving object, (the object moves down), and the sensor reads the signal 1 -> 2 the servo moves up 120deg, (the object moves up) and...
  15. D

    Monitor the free fall detection and calculate gravitational force

    I am using the accelerometer to detect the vibration but at the same time, I need to test the free-fall detection using wireless sensor with Arduino https://store.ncd.io/product/mma7660fc-3-axis-orientationmotion-detection-sensor-%C2%B11-5-g-accelerometer-i2c-mini-module/ and perform some...
  16. M

    Sensor to distinguish between daylight and artificial light in a room?

    is there a way to distinguish between daylight and artificial light in a room? I'm thinking my options are a light intensity sensor or a color temperature sensor. The sunlight is supposed to be much stronger than artificial light. But I'm wondering if the case will be the same inside a room. Or...

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