Controlling 433Mhz mains transmitter from Pi 0W
Posted: Thu Apr 16, 2020 7:07 pm
Hi,
During this lock-down period I thought I would complete some of my many outstanding PI projects.
I have a Pimoroni Octocam (PI0w) running opencv to detect movement and send me an email, i.e. a burglar alarm.
It sits in the conservatory where we have some lights that come on and off using a mechanical timer which is very noisy.
I have another burglar alarm based on a B2, again running opencv but with a PIR and 433 TX to switch on some lights when we are away. The lights are controlled by a script that runs at noon every day, calculates what time dusk is and switches the lights on. They are switched off at a random time after 2300;
I naively thought it would be straight forward to do a similar thing with the Octocam.
I cannot get reliable control from the Octocam, there is only 2 metres max between the Pi0 and receiver so it is not distance.
CPU loading on the Octocam is around 60%
I have disabled the opencv and still can't get reliable control.
Increased the number of attempts from 10 to 20.
If I connect the TX to a PI3 it works every time.
On the Octocam and PI3 I am using the 5V output.
I am using Buster and rpi-rf.
Has anyone got any suggestions as to what else I could try?
cheers
Steve
During this lock-down period I thought I would complete some of my many outstanding PI projects.
I have a Pimoroni Octocam (PI0w) running opencv to detect movement and send me an email, i.e. a burglar alarm.
It sits in the conservatory where we have some lights that come on and off using a mechanical timer which is very noisy.
I have another burglar alarm based on a B2, again running opencv but with a PIR and 433 TX to switch on some lights when we are away. The lights are controlled by a script that runs at noon every day, calculates what time dusk is and switches the lights on. They are switched off at a random time after 2300;
I naively thought it would be straight forward to do a similar thing with the Octocam.
I cannot get reliable control from the Octocam, there is only 2 metres max between the Pi0 and receiver so it is not distance.
CPU loading on the Octocam is around 60%
I have disabled the opencv and still can't get reliable control.
Increased the number of attempts from 10 to 20.
If I connect the TX to a PI3 it works every time.
On the Octocam and PI3 I am using the 5V output.
I am using Buster and rpi-rf.
Has anyone got any suggestions as to what else I could try?
cheers
Steve