Questions tagged [radio]

"Radio" here refers to wireless communication other than normal wifi or bluetooth bands, e.g. FM, shortwave, and RC.

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Raspberry Pi and RFM69HCW (Adafruit) not working - SPI used (URGENT)

I am working on a project, and I was trying to get the Pi 4 working with an RFM69HCW module. I tried using spidev for this, and read the spidev documentation. I followed the steps but I keep getting ...
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Attempting to use an AVerMedia A835 USB dongle as a general purpose radio receiver - is this possible?

As the title suggests, I would like to try to use an AVerMedia A835B USB dongle to receive radio signals (not just TV). Why? Because I happen to have one and would like to try to get it to work for ...
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How to interface Raspberry pi B with 433 Mhz Transceiver kit (WiringPI is defunct)?

I picked up a 433 Mhz transceiver kit so I can mess around with a remote controlled power outlet from my PI. Thing is, the two the examples I find for it use the WiringPI library which appears to be ...
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Connecting between RPi4B and Windows with radio

I have an RPi4B and an two APC220-s, one with an USB adapter. The USB adapter goes to the Windows computer, using PuTTY, with 2400 baud. The other one is connected to the GPIO-s of the RPi (3.3V,GND,...
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Problem using adafruit-rfm96w Lora transceiver

I'm new in programming and for a project I actually need to deal with 2 adafruit-rfm96w to transfer data between 2 Raspberry Pi(one Raspberry Pi 3, and one Pico). But I don't understand how to use the ...
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RF Direction Finding

Is it possible to build a system with a raspberry pi and antennas to find the rough direction of a radio frequency emitter such as a Wifi router, a Bluetouth Tag, or, a 5G cell tower? I cannot use ...
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Can't run MetaSploit commands on Raspberry Pi received via LoRa radio/SPI

Relevant Code: https://github.com/MichaelBonnet/TeamZephyr/tree/main/radio, rfm9x-base.py and rfm9x-payload.py Situation: I am using LoRa radio modules as a communication link between two Raspberry ...
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Is it possible to have console/SSH-like communication between 2 RPis/RPi and Linux machine using RF transceivers?

I am currently working on a project where a Raspberry Pi will be used to run an nmap scan on a (purpose built) wireless network, and then attempt to exploit vulnerabilities found on the network. The ...
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I would like to control my Traxxas Stampede with a raspbery pi

So i want to make basically a glove where when i tilt my hand it will turn the car. (I'm going to just have simple buttons for forward and back so I only need to focus on one tilt plane) I plan on ...
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How to use 433 RF codes to start actions on Rpi

My setup is: Arduino with 433 cheap transmitter module, photodiode and a laser and 433 receiver connected to Rpi, button. I've used rpi-rf lib to receive codes. I'm trying to make stopwatch that when ...
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Si470x-based USB tuner on OSMC

I am running OSMC on a Raspberry Pi, and have an ADS RDX-155-EF Instant FM Music stick lying around, which I would like to use with OSMC. The tuner stick is an USB device built around the ubiquitous ...
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FM Receiver with raspberry pi

I was wondering if there was any way to make a software-only radio that will use all the components included in a raspberry pi 3B+. I've been doing some research and all of the FM models that I found ...
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What's the best way to remote control a Raspberry pi - powered robot? [closed]

I'm going to build a robot powerd by raspberry pi and i wnat to control it remotely, the principal tasks that need to have a remote exchande of data is: the streaming of 3 cameras the monitoring of ...
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Is there a way to transmit live voice through radio without a soundcard on raspberry pi 3

Is it possible to transmit live voice through raspberry pi 3 without a usb soundcard I only have a hradset with a mic And I am a beginner If possible let me know the answer in a simple way Thank you
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Is it possible to receive an FM radio's audio stream in software?

My goal is to be able to "rebroadcast" FM radio over the internet. What I mean by this is connect some kind of FM radio board to the raspberry pi, and receive the audio in software (i.e. ...
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Connect wifi direct (GO) with 5GHZ frequency

I can connect with 2GHZ frequency and can transfer data successfully using WIFI DIRECT. In this connection, I have a data transfer rate is only 2MB/s. By online search, I found that if we use the 5GHZ ...
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How to send text over rf radio?

I just got my hands on a 433MHz RF Wireless Transmitter and Receiver Module and I was wondering if anyone knows how to send text data (not just yes or no) using them and a RPI. I would appreciate it ...
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How to send gps data over short range with rpi?

I am planning on starting a project soon that requires me to be able to send GPS data over a short distance (no more than 1 mile at most). I have never done anything like this with a rpi before so any ...
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2 answers
417 views

Raspberry AM radio transmitter

Is there a AM radio trasmitter library for raspberry? Like PiFMRDS ? AM travels further and it would get better range on low power RPi trasmitter. Or how could I do that myself? Generate high (~1Mhz) ...
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Specifics on connecting RFM69 to pi3

I am trying to follow these instructions to test a RFM69 module added to an Raspberry Pi 3. This is likely rather naive, but I would like to know details on how to connect the pi to the module. The ...
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1 answer
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Raspberry Pi / Low-power FM transmitter?

I recently got a Raspberry Pi 400 and I tried this https://github.com/markondej/fm_transmitter without an antenna. The range was approximately of about 5 feet, from what I could notice. Now I've heard ...
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450MHz - 2.4GHz Receiver

There is a device in my house that is broadcasting in the 450MHz - 2.4GHz range. I do not know the exact frequency that the device is broadcasting on. I am looking to use my raspberry pi to receive ...
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three position on/off/on

Hi I am converting a 1963 Roberts R300 transistor radio into an internet Radio. I will be using a raspberry pi for this and as the radio has a three position on/off/on switch to choose between long ...
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How is the radio module connected to motherboard (CPU) on Pi-4? [closed]

By this link we can see that in Pi 4 there is Wi-Fi module (called radio module under the picture). But I can't figure out, how is this module connected to motherboard? Is this PCI bus or whatever? ...
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Inject audio and broadcast/stream over internet

I like to attach an FM tuner like Si4703 to raspberry pi 3 and want to rebroadcast particular frequency (FM) over the internet (I want to listen to local FM when I'm in my office since I don't get a ...
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1 vote
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pigpio: Read PWM from RCcontroller then send to ESC via GPIO

Im trying to learn Python by combining my interest in designing an AWD radio controlled car (3D printed, Im decent with Fusion 360 too) with some smarts from Pi/Python to allow things like software ...
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1 vote
1 answer
87 views

Dynamically setting address of HT12E

I have a project where I need to send a wireless signal to one of several receivers to turn on an LED. One transmitter, several (many) receivers, each with an LED. The receivers need to have low ...
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Wireless Protocol to use in a Forest

I am planning to make a robotic tank for monitoring a large wilderness area like a forest. I need some form of radio communication with which I can control the tank from anywhere in the world. What ...
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1 answer
104 views

Signal generator connected to raspberry pi via USB

Ido connect to the device from my raspberry pi and able to send commands. The power consumption of the SG is 2.5 W. That means that the current of usb port should be 2.5 / 5 = 500 mA. >>> ...
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3 votes
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Unable to intercept the code of my remote control at 433 MHz with RaspberryPi

I'm trying to reproduce the code generated by my universal 4-channel radio control with RaspberryPI. I cloned my remote with a universal remote like this: I used the libraries included in 433Utils ...
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2 votes
1 answer
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Pi based Radio Telescopes?

I'm interested in building a Raspberry Pi based radio astronomy telescope. I'm not too set on any particular science objectives, but rather just want to get some experience with the full system, learn ...
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2 answers
2k views

How to decode a 433MHZ signal

I've made the classic 433mhz send/receive experiment, using cheap hardware on the same breadboard and same raspberry, I've wired both sender and receiver to VCC 5V, GND to GND and data to GPIO 27 (...
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1 vote
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Control 868MHz device from a RPi4

I am trying to control my electric blind (elero brand, controlled by this remote) from my RPi4, and while I'm fine tinkering with anything on the software side, I must admit my knowledge of GPIO and ...
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3 votes
3 answers
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RF 433 MHz cannot transmit or receive from more than 10-30 cm

I have 3 Pi's and a transmitter and receiver on all of them. We are trying to just send a number from Pi 1 to Pi 2 and have Pi 2 send back a response. We followed the instructions in https://www....
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1 vote
2 answers
844 views

Using EnOcean PI 868 with raspberry PI4

first of all: I'm new to raspberry I.ve just bought a raspberry PI 4 together with an EnOcean PI 868 module to set up a house automation system. To make it run I've tried the steps described on the ...
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1 vote
1 answer
1k views

How can Rpi4B use UART to read and analyze received data at a 3DR FPV Air Radio Module?

I am trying to set up the FPV telemetry radios (Air and Ground Module 433MHz). I have connected the Ground module to my laptop (USB) and air module to Raspberry Pi 4 UART pins. Using Mission planner ...
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FM Radio with HifiBerry Amp2

Is there a way of running a Raspberry Pi 3 with a mounted HifiBerry Amp2 together with an FM Radio Module e.g. TEA5767 FM Radio Breakout Board? Currently I set up my RPI to run Mopidy and Spotify ...
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Raspberry PI 3 with Funcube Dongle Pro+ SDR does not read the antenna

I am trying to configure my RPi3 into a small receiving ground station. I already have installed the gnuradio, gqrv, gpredict packages. The RPi is connected to an SDR dongle (Funcube Dongle Pro+) with ...
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1 vote
0 answers
262 views

RF 433Mhz reciever not finding remotes

I'm having some trouble with my 433Mhz receiver on my pi. I first tried to read the signal my Nexa PET-910 and 433Mhz doorbell sent on the pi, but I could not get any usable data, just noise, or no ...
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1 vote
1 answer
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Stream web radio and choose via Smartphone app

the question could sound trivial, but I'm super new in the Raspberry world. I searched a lot in the internet for this problem, but I wasn't able to find an "easy" solution. I've a raspi 3 with ...
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1 vote
1 answer
91 views

Radio Transmission

Yes, I pretty much a noob, but I was wondering if there is a way to program the Raspberry Pi in Assembly Code to transmit data via radio frequencies (like remote control) between itself and another ...
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1 vote
1 answer
2k views

433mhz RFSniffer doesn't recognize signal

as in the tile, I've tried to sniff a 433mhz radio signal with my raspberry pi 3b but something failed the receiver is one of the cheaps available in the web, 5v powered. I've followed this tutorial ...
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-1 votes
1 answer
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RF script automation

First time poster, so forgive me if I missed anything. I'm trying to get an automation script working with some RF modules. I want a script to wait for a certain code, and then output 1/0 to a file. ...
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2 answers
3k views

FM transmitter antenna length

I'm a new raspi user, and I'm starting to build some projects with hardware. I would like to try this FM radio station for example, but I have a doubt about the antenna's length. This is important ...
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6 votes
4 answers
2k views

How much electromagnetic or radio interference is caused by a typical unshielded Raspberry Pi?

Most desktop computers come with metal cases, which have a side-effect of blocking the radiofrequency emissions or electromagnetic radiation which is produced by the internal electronics. Back when ...
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3 votes
2 answers
2k views

Detecting electromagnetic field with Raspberry Pi

For my school project, my objective, among others, is to detect EMF changes (frequencies between ~400MHz and 2,4GHz) in a room (to simplify it even more, let's assume it's gonna be very small room/...
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starting up radio and one led

I'm using this in as my /etc/init.d/pirateRadio.sh the Radio does play a wav with this in the rc.local export PATH=/usr/local/bin:/bin:/usr/bin:/usr/local/sbin:/sbin:/usr/bin sleep 10 ( exec &&...
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2 votes
0 answers
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Transmit 433 MHz Manchester from Arduino - receive on Rasberry Pi

On Attiny85 I'm using Manchester encoding library with code #include <Manchester.h> #define TX_PIN 1 uint8_t transmit_data = 123; void setup() { man.workAround1MhzTinyCore(); man....
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1 vote
2 answers
469 views

PiFmRds: Raspbian freezes when I change windows. How do I fix it?

I am running my raspberry pi 3 with a radio station software PiFmRds The program works fine but then when I go to move the window (or any other window) the system freezes and I have to unplug and ...
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Send and receive 868Mhz signals with my Pi

My home lighting is achieved using wireless Delta Dore switches working in 868 Mhz. Here are my switches reference : https://www.deltadore.fr/data/product_files/6351091/documents/notices/Util/fr/...
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