tommyleinen
- May 11, 2013
- 2
- Joined
- May 11, 2013
- Messages
- 2
I am looking for advice as someone who is intested in electronics and home projects but has very basic knowledge:
I am putting in a set of ceiling speakers in the bathroom, which are connected to an amp next door.
My theory is that i could use a couple of low voltage PIR sensors, each between one of the speakers and the amp on the speaker cable.
The sensors I have in mind are:
http://tinyurl.com/bnnx4v3
Operational Voltage: 0.8V-9V
Static Power Consumption: 50 microampere
Detecting Range: 3-5 meters, <140 degrees
Operating Temperature: -15 to +70 deg C
Trigger Method: L unrepeatable trigger / H repeatable trigger
Can anybody tell me whether this would work, if it would work with a tweak or two, or if it is just plain daft or indeed dangerous?
I am thinking that there might be enough voltage to power these without the need for an additional power supply...
The amp runs at 20RMS per channel... but can easily power a pair of 100Watt speakers. It would in theory be left on all the time, with the PIRs acting as speaker switches.
Thanks in advance![Stick Out Tongue :p :p](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)
I am putting in a set of ceiling speakers in the bathroom, which are connected to an amp next door.
My theory is that i could use a couple of low voltage PIR sensors, each between one of the speakers and the amp on the speaker cable.
The sensors I have in mind are:
http://tinyurl.com/bnnx4v3
Operational Voltage: 0.8V-9V
Static Power Consumption: 50 microampere
Detecting Range: 3-5 meters, <140 degrees
Operating Temperature: -15 to +70 deg C
Trigger Method: L unrepeatable trigger / H repeatable trigger
Can anybody tell me whether this would work, if it would work with a tweak or two, or if it is just plain daft or indeed dangerous?
I am thinking that there might be enough voltage to power these without the need for an additional power supply...
The amp runs at 20RMS per channel... but can easily power a pair of 100Watt speakers. It would in theory be left on all the time, with the PIRs acting as speaker switches.
Thanks in advance