Does anyone actually have a working 433mhz RF solution?

[Mahko_Mahko]

I’ve been very happy with my DIY transciever

Sonoff RF Bridge with ESPHOME?

I moved off my hardware hacked Sonoff RF Bridge and onto these connected to an ESP32 after I hit up against limits in number of codes I could watch/send. Very happy with it so far. I also hooked up and LED and an RTTL buzzer to it. I have it beep when I hit buttons on my 433mhz remotes so that I know it’s “been sent and heard”… I tried a few ESp32’s I had and it became really solid when I used a Quinled. I left it kind of exposed deliberately - it’s my “RF bug”… [image] substitutions: …

I recall people mentioning rf door sensors for letterboxes.

I don’t know how reliable it is.