Questions tagged [distance]
The distance tag has no usage guidance.
18
questions with no upvoted or accepted answers
1
vote
0
answers
75
views
VL53L3CX XSHUT PIN PROBLEM IN DEEP SLEEP
I have project using a VL53L3CX distance sensor. Also , I control it by ESP32. In normally, I can command to XSHUT pin. And I can read xshut pin of ESP32 that is 3V3 or 0V.
But, When ESP32 enters deep-...
- 51
1
vote
0
answers
91
views
Height or antenna gain for a ship mast cell antenna
I'm optimizing my ship's WAN using cellular modems and looking to improve distance connectivity over speed in an either or option challenge.
Our ship's mast has two cell antennas which are currently ...
- 11
1
vote
0
answers
97
views
What is wrong with this PIC16F877A HCSR04 example?
I am working on distance sensor with PIC16F877A.
I am using MPLAB IDE AND XC8 compiler.
My goal is to gradually turn on the right leds at certain distance levels.
but the leds are blinking unstable. ...
- 711
1
vote
1
answer
43
views
Better displacement finder? Lasers/Inertial Sensors
I've seen laser rpm measurement devices. But can it be used the find displacement/distance moved for object when attached to it?
I know taking rpm of wheel and multiplying by circumference would give ...
- 11
1
vote
0
answers
72
views
Measure distance to object with angular precision - invisible for camera
I want to build myself an arduino based follow-focus. There is one mode intended for using a joystick for manual control of focus and zoom. This code already works a treat.
Now I want to add a ...
1
vote
1
answer
176
views
Distance considerations between analog output and ADC input?
I have read about distance limitations of timing critical signals like communication over SPI. In order to get more distance between my Pi and my sensor I am considering using an analog sensor and an ...
- 267
1
vote
0
answers
277
views
Calculate distance between two vehicles without using GPS
I am trying to understand if there is any way to measure the distance between two vehicles, possibly moving, without the aid of GPS. I want to measure a distance of more than 50 meters but less than ...
- 11
0
votes
3
answers
31
views
Distance sensor types with sample rates >= 1 kHz and certain characteristics
I made a project a while ago, it was about making a device that can measure the time it takes for an athlete to run between two points. It consisted of two stations, both of which were based on ESP32-...
- 1
0
votes
0
answers
77
views
How to interface 6 HC-SR04 ultrasonic sensors to Raspberry Pi 4
I am a beginner to Rasberry Pi and working on a parking warning system for a go-kart. The plan is to use 6 ultrasonic sensors (3 at the front of the kart, wired to one of the breadboards, and 3 at the ...
0
votes
0
answers
36
views
Problem with UART communication with a Pepperl & Fuchs UCC4000 ultrasonic sensor
I have a problem with a Pepperl & Fuchs UCC4000 ultrasonic sensor. This sensor communicates with UART protocol and has data transmit - receive based a kind of checksum encoding. According to what ...
0
votes
0
answers
166
views
Underwater distance measurement
I am working on a University project on ROV that needs an underwater distance measurement of about 50 cm min and 2 m max. I tried looking for sensors and came across jsn-sr04t but that doesn't seem to ...
0
votes
0
answers
33
views
Sensor for tank fluid measurement
What kind of low cost sensor can be used for a tank fluid level measurement up to about 1m distance, with accuracy of about 5%. Interface to controller can be anything reasonable (SPI, I2C, digital, ...
- 183
0
votes
0
answers
128
views
How to determine radiation at a certain distance from a sunlamp
I have a sunlamp, with four UV bulbs, emitting UVA and UVB. These are parallel-mounted tube bulbs and the total area of the light emitting area is 20 cm × 25 cm = 0.05 m2. Each bulb is 15 W and so ...
- 101
0
votes
0
answers
53
views
Laptop LCD video cable extension
How long that cable:
https://www.aliexpress.com/item/32885352799.html
can be extended without losing image quality if I cut it in the middle and add wire?
Which wire will fit and what kind is the ...
0
votes
0
answers
84
views
Can creepage distance be separated into more sections?
Can I count that the creepage distance of two separate circuits can be divided into two sections, while the inner conductive pad/track is isolated/floating?
Similarly, can I use two resistors (200V ...
- 137
0
votes
1
answer
211
views
How can I accurately find the distance between two drones over moderate distances?
I am currently taking part in a project in which I am building drones using Arduinos and Raspberry Pis, and I need to be able to measure the distance between the drones. After some research, I ...
-1
votes
1
answer
340
views
SRF05 | PIC16F18875
I´m doing a project for my electronics class. I´m trying to calculate a distance using a SRF- 05 Ultrasonic Sensor; but the result in the display is 0 .
I´m using a Curiosity HPC Development Board w/ ...
- 11
-3
votes
1
answer
256
views
What sensor can penetrate the glass window and detect any moving object in front of the car?
I want to put this sensor on top of the dashboard in my car. The signal can penetrate the front window. The sensor can also sense any moving object in front of my car. It should also be able to get ...
- 101