ZK-SK Voice Control Delay Switch — clap, and it powers your circuit for 10 seconds
This is a complete sound-activated switch on one small board. It is not just a sensor that outputs a signal for a microcontroller to read — it does the switching itself. Clap, speak or make any sharp sound near the on-board electret microphone and the module powers whatever is connected to its OUT+ / OUT− terminals for about ten seconds, then switches off on its own. No Arduino, no code, no relay needed.
With 1.5A of drive capability it is happy running a small DC motor, a cooling fan or a high-power LED directly, and a built-in anti-interference circuit stops motor noise and electrical spikes from triggering it by accident.
Specifications
- Model: ZK-SK
- Operating voltage: DC 3–9V
- Maximum output current: 1.5A
- Delay time: approximately 10 seconds, fixed (not adjustable)
- Sensor: on-board electret microphone
- Output: OUT+ / OUT− direct-drive terminals, with a red LED that lights while the output is active
- Board size: 31 × 25 × 12 mm, with mounting holes
- Extras: built-in anti-interference circuit to prevent false triggering
Important — read before you wire it
This module switches a low-voltage DC load on its output terminals. It is not a relay and must never be connected to 220V mains. If you want to switch a mains bulb or appliance with sound, use this module (or a sound sensor) to trigger a proper relay module rated for mains voltage.
What you can build with it
- Clap-activated lights for a hallway, cupboard or staircase
- Sound-triggered cooling fans that run for a burst and stop
- Interactive toys, model cars and science-fair exhibits that react to a shout
- Simple clap switches for school and college projects — no programming required
- A hands-free trigger for any 3–9V DC load under 1.5A
Why buy it from Arduino Corner
Because it is the fastest way to get a working clap switch. The sensor-only modules people usually buy still need a microcontroller and a relay before anything actually turns on — this one is finished the moment you connect power and a load. Genuine module, correctly specified, at the best price in Pakistan.
Visit us: Smart Home | Arduino Corner, Shaheen Market, DAV College Road, Rawalpindi. Same-day delivery across Rawalpindi and Islamabad, cash on delivery all over Pakistan.
