u/Substantial-Rip9983

We just got a Bosch 800 series dishwasher and we just started hearing a voice in our kitchen about 15 minutes after a cycle is complete.

It's a male voice and it's very quiet, by the time we pay attention to it to figure out what it's saying and where it's coming from. It stops. We also have an Amazon echo in the kitchen but I do not believe it is lighting up.

I can't find any information that says the dishwasher uses a voice to announce that the dishes are clean.

This is driving me nuts!

Edit: I opened up the app on my phone and I went to the settings page and we heard the sound again. We were both in the living room so again we could not hear what it said. I could not get it to repeat this. Tomorrow I am going to set up a camera that will record audio and find out what is going on.

I made a timer that has a start gate, end gate, and handheld control module. I used ESP NOW and placed an ESP-32 at both gates and used a Lilly-Go ESP-32 with display for the controller. That works fine, but with a lot of people around using Wi-Fi the range is bad.

I would like to make version 2 using 915mhz. It seems everyone uses LoRa now, but I know systems like I am making in the past didn't use a microcontroller at each gate for a simple on/off bit to be transmitted back to the controller. The way I understand LoRa is that I need a microcontroller at each location, correct?

Is there an easy way to send these signals with a simple 915mhz transmitter? LoRa has taken over this market and I am having trouble finding something simple. Is this even a good idea? Would I have to make sure I don't keep broadcasting the on/off signal? Would it be more difficult to ensure I got the signal to the receiver? I am assuming that's where LoRa ensures I get the signal, then stops sending it?

I guess I would like to make this thing as simple as possible, simple sensor connected to the transmitter that sends that "bit" to the receiver to start the timer, the other gate sends another signal when it's tripped to the timer to stop the time.

I also send information to the end gate where there is a red, yellow, green light bar that shows when to start.

Thanks for any help!

PS: If LoRa is my best option, does anybody make a small ESP-32 board with LoRa built in but no display that I could use for the gates to send the signal? I would also like one for the control, but with a bigger display than the tiny display that Heltec makes. Maybe I need to use separate components for everything?