Questions tagged [long-distance]
The long-distance tag has no usage guidance.
27
questions
2
votes
1
answer
64
views
Determining load voltage and current of a pump connected to long wires
I'm trying to estimate the load voltage and current of a pump connected to a power supply with long wires. Here is a schematic:
simulate this circuit – Schematic created using CircuitLab
The ...
- 21
0
votes
1
answer
122
views
Yagi antenna with 16 dBi gain, is it bottle necked by the power input?
I want to expand my PC's WiFi range, but the NIC delivers only 5 W. When I connect the antenna, not much more range is achieved. Is the antenna not the right one, or is the output of 5 W not enough? ...
- 1
1
vote
2
answers
310
views
Need advice on achieving 1 km non-line-of-sight wireless communication without internet
I'm currently working on a project that involves establishing a reliable non-line-of-sight wireless communication link with a range of 1 kilometer or more. The project does not have internet access, ...
0
votes
2
answers
59
views
Buck Reg Isolation Through I2C Pullups
I have two microcontrollers on an I2C bus. They're powered by separate buck regulators.
This question recommends buck regulator outputs never be put in parallel.
What about through I2C pullups? If not,...
- 187
24
votes
9
answers
4k
views
Single wire (no ground wire) long distance low frequency communication
In a cave we are currently exploring, there is a temporary siphon that sometimes blocks our way.
I was thinking about monitoring it (pressure sensor or other level sensor at the siphon, transmitter ...
- 7,697
5
votes
8
answers
3k
views
Long-distance Arduino buttons crosstalk over Cat5e cable
I am developing a hardware system where an Arduino sits in the server room and communicates with the main computer via USB/serial. Users can push buttons at remote panels to trigger different ...
- 51
2
votes
2
answers
534
views
level-shifting daisy-chained data line from 5V to 24V for long distance communication stability
I need to daisy chain several WS2811 chips with distances up to 20-30m in between.
Every unit has a WS2811 chip that drives 3 DIO5151BCD10 LED drivers to control a high power RGB led. To account for ...
- 179
0
votes
1
answer
90
views
Best fit wireless technology for long range application
My project goal is to have 2 devices, a transmitter and a receiver. The transmitter should transmitter a measured distance +- every second and the receiver which could be at max. 10 miles away from ...
1
vote
2
answers
3k
views
Is it necessary to use a pull down resistor with this BTS7960?
I have an Arduino Nano controlling a BTS7960 that is 10 meters away.
I have one 24V power supply.
Both the Arduino and the BTS7960 get 5V through a an LM2596 step down converter.
The BTS7960 "...
- 11
0
votes
2
answers
588
views
I2C over long distance with RJ11 CAT3 cable: how EMI noise will effect differential (but not twisted) pair wires
I have several nodes with Cat3 RJ11 cable in my office. I need to do an I2C communication between several nodes over + 20m and read about the PCA9615 driver. Unfortunately, the Cat3 RJ11 cable has ...
0
votes
1
answer
2k
views
Does the ESP32's Long Range capability work with most smartphones?
Recently discovered an ESP32 can be its own access point (controlling or displaying data wirelessly through a web browser not connected to Internet). It also has long-range capability:
Long Range (LR)
...
- 677
0
votes
2
answers
685
views
Transmit digital signals over long distances using current (voltage to current converters)? [closed]
I want to transmit signals over a long distance wire.
Let's imagine that I want to transmit the temperature information from the LM35 sensor over a long wire: instead of transmitting the voltage (...
0
votes
2
answers
1k
views
Star configuration using CAN Bus, I2C or RS485
I need to create a sensor network, with a central node receiving data from +10 different nodes, each one +20meters from the central node. So basically I need to create a star configuration, with a ...
1
vote
0
answers
322
views
Very long distance analog audio transmission over cable
Summary: I want to transmit an audio signal (300Hz-3kHz) without modulation over a 10 km cable.
I don't know how to.
I have looked for a similar post and couldn't find any I hope I am not creating a ...
- 11
0
votes
2
answers
312
views
Communication within 5-10 meters: RS-485 or Wireless?
As a follow-up for my previous question, can anyone please recommend for my application (communication between two floors of a building) as whether to use RS-485 or any wireless technique (I am ...
