Smoke alarm function
Smoke alarm, also called fire smoke alarm, smoke sensor, smoke sensor, etc. Powered by the bus, there can be multiple connections on the bus, which are connected to the fire alarm controller and communicated to form an alarm system. There is no sound at the scene when an alarm occurs, and the host has sound and light prompts. This type of smoke alarm device is generally called smoke detection Device. Smoke detectors have address codes and those without address codes.
Smoke alarm function

Product Composition

     01 Infrared pair tube
     02 Buzzer
     03 Function control board
     04 Function control board

Structure description

     Electric toothbrush PCB structure description

     1. The PCB structure diagram is fully compatible with the public housing on the market, and the PCB structure can also be customized according to customer requirements.

     2. Use 9V alkaline battery for 1 year.

     3. The main control MCU uses NY8A051D, SOP8 package, long standby time, low power consumption, 9V alkaline battery, battery life up to 1 year.

NY8B051D pin position and function description

     SOP8 and SOT23-6 package