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Amazon.com : Taidacent 24V Audio Signal Trigger Relay ...
https://www.amazon.com/Taidacent-Signal-Trigger-Control-Performance/dp/B07TXGD4K2
The relay is always on, the relay will not be disconnected and flashed, and the audio trigger signal After stopping, the timing starts from the new time, and the delay time reaches the relay disconnection; 5, there is a power indicator (red LED) and switch trigger timing indicator (green LED); 6, with timing potentiometer adjustment time, product design is adjustable from 1 to 180 …
Audio Trigger Relay (Light Indicator)
http://www.pic-control.com/audio-trigger-relay-light-indicator/
Any sound detected will trigger a relay to turn “ON” which you can use to turn on a light indicator or your machinery to automate a process. This device is also an audio triggered switch, converting audio sound into a switch output. Features Sound Input Stereo Audio 3.5mm Jack. Power Input USB type B socket Solid State Relay Output
Audio Triggered Relay - Project Guidance - Arduino Forum
https://forum.arduino.cc/t/audio-triggered-relay/573399
The 12 volts of dc is to trigger on an ac outlet. That doesn't make complete sense to me. Sounds to me (pardon the pun, being an audio project haha) that you just need a relay module as DrDiettrich said. The Arduino output will trigger the relay; the mains AC live will be broken and attached to the relay's Normally Open (NO) and Common (COM) outputs.
Amazon.com: RDL ST-ACR1 Line-Level Audio Controlled …
https://www.amazon.com/ST-ACR1-Line-Level-Audio-Controlled-Relay/dp/B004ZKY0FC
The SENS potentiometer adjusts the audio input sensitivity. A threshold LED facilitates accurate adjustment. The module can be set to trigger on signals between 30 dBu and 0 dBu. The DELAY control sets the time required for the relay to release when the audio drops below the threshold. - Power Supply Not Included Product information
Switching Controlled by an Audio Signal | Radio Design Labs
https://www.rdlnet.com/blog/tips/switching-controlled-by-an-audio-signal/
RDL ST-ACR Series Audio Controlled Relays are used in any application where an audio signal must be used to create either a relay closure or Open-Collector output to control another piece of equipment or a circuit. Common applications include: Juke Box overrides Background Music AN-2024; Silence or “Dead Air” Sensor in broadcast environments
audio signal from headphone jack to trigger relay ...
https://forum.arduino.cc/t/audio-signal-from-headphone-jack-to-trigger-relay/322785
Audio signal from headphone jack will trigger the relay for about 30seconds. When i call the phone, the audio signal will trigger the relay. Laptop cooler fan will be triggered by relay. i wanted that even if i cancel the call the relay will stay on for 30seconds, then shuts down.
Looking for line level audio triggered relay - Techtalk ...
https://techtalk.parts-express.com/forum/tech-talk-forum/1327785-looking-for-line-level-audio-triggered-relay
It should be relatively easy to come up with a small amplifier circuit to increase the level, rectify the output with a diode in series and drive a relay with a capacitor in parallel. The capacitor will smooth and stabilize the output as well as give you a time delay on drop-out if of sufficient capacitance.
DIY HOW TO Make a Home Theater AMP 12V Remote …
https://www.youtube.com/watch?v=EzhJeCTI4WQ
In this video, Dirty goes over a solution to the 12V remote trigger input issue that so many experience. This workaround will make your amp turn on when you...
Do external 12 V triggers exist? | Audioholics Home ...
https://forums.audioholics.com/forums/threads/do-external-12-v-triggers-exist.117477/
You can do this with a 12VDC power supply and a relay- use the AVR's trigger to activate the relay and the power supply to do power the other trigger inputs. AVRs have limited current output and if you were to try to exceed it, the voltage would drop or stop completely as a way for the circuit to protect itself.
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