#rpitx — Public Fediverse posts

FINALLY got my radio-controlled socket working with #homeassistant and my #raspberrypi...had to go down a whole rabbithole.

For transmitting to it, I use #rpitx, which allows the pi to do a replay attack and transmit the socket remote's signal (433mhz band) from an iq file using one of it's GPIO and a jumper cable as an antenna. From there, the correct command to do this is run from a #python script running #flask, that turns it on when it receives a HTTP post request on the correct port with the contents of "ON", or off with the contents of "OFF".

This is necessary because my instance of homeassistant is being run dockerized, meaning I don't have to go through a whole bunch of trouble installing rpitx on the container and blah blah, I can just post to a port. It's a goofy workaround but it works and it probably would have been harder trying to do it any other way.

Then just get homeassistant to use a commandline switch which runs another python script - this time from inside the docker container - to submit the correct HTTP request.

@F4GXS
you can test analog tv trasmission with #rpitx

Like Radio? ☑️

Have a Raspberry Pi? ☑️

Follow This RPITX Install Walk Through To See How Easy It Is To Turn Your Raspberry Pi Into A Radio Transmitter

💻 📡

#SDR #Radio #RaspberryPi #SBC #Pi #RPITX
#Peertube: https://tube.tchncs.de/w/fXqp2HZNtaa2QoES25ESx3
#LBRY: https://odysee.com/@RTP:9/installing-rpitx-%28raspberry-pi-becomes:6

Fan-tastic Misuse of Raspberry Pi GPIO - [River] is a big fan of home automation. After moving into a new house, he wanted... - https://hackaday.com/2021/04/06/fan-tastic-misuse-of-raspberry-pi-gpio/ #homeautomation #wirelesshacks #raspberrypi #ceilingfan #smarthome #rtl2832u #rtl-sdr #rpitx

A default Raspberry Pi with RPITX software and a short wire antenna can transmit AM, FM, SSB 5 KHz up to 1500 MHz

True it is only transmitting a few mW but it genuinely does these transmission modes at these frequencies with only a piece of wire connected to one of the pins on the board - no extra hardware modules added. Who said Raspberry Pi's are not amazing!
This is quite a useful way to demonstrate how RF transmitting works to youngsters. Of course, its got to be remembered that without a bandpass filter this is going to generate some interference and apart from that transmission is regulated in most countries.
Watch a short video of how it works at https://www.youtube.com/watch?v=Wsy-TAFNs90 and the source code can be found at https://github.com/F5OEO/rpitx
#RPITX #raspberrypi #amateurradio https://squeet.me/objects/962c3e1080aa2c02567355588c05b28e08293121