Hi,
I'm interested in making a door alert/chime, and wanted to collect suggestions and ideas before I start.
The door chime has a magnetic sensor and a transmitter unit that wirelessly triggers the chime of a distant receiver unit.
There are lots of products for sale that almost do what I want, but nothing quite perfect. A lot of them have limited range (< 200ft line of sight, less through walls), or only single receivers. I want to have multiple receivers (so that I can hear the chime upstairs, or in the basement, as well as on the ground floor).
I'd like to have some type of modulation or encoding to limit eliminate incorrect alerts.
I can probably come up with an op-amp circuit that can do this, but thought there might be ICs available that handle a lot of this stuff. Perhaps I could even repurpose some existing products to do exactly what I want.
Does anyone have any recommendations for an easy way to accomplish what I want? If not, perhaps some recommendations on circuit topology?
Thanks!
m121212
I'm interested in making a door alert/chime, and wanted to collect suggestions and ideas before I start.
The door chime has a magnetic sensor and a transmitter unit that wirelessly triggers the chime of a distant receiver unit.
There are lots of products for sale that almost do what I want, but nothing quite perfect. A lot of them have limited range (< 200ft line of sight, less through walls), or only single receivers. I want to have multiple receivers (so that I can hear the chime upstairs, or in the basement, as well as on the ground floor).
I'd like to have some type of modulation or encoding to limit eliminate incorrect alerts.
I can probably come up with an op-amp circuit that can do this, but thought there might be ICs available that handle a lot of this stuff. Perhaps I could even repurpose some existing products to do exactly what I want.
Does anyone have any recommendations for an easy way to accomplish what I want? If not, perhaps some recommendations on circuit topology?
Thanks!
m121212