This action triggers a bell (buzzer) to ring automatically for 5 seconds, alerting others that assistance is needed. Additionally, the name of the requested item is displayed on the LCD screen for 10 seconds. This device has applications across various fields, including hospitals, offices, and even restaurants.
In a hospital, a caretaker assists patients with daily tasks, such as administering medicine, feeding meals, and walking. Often, an elderly patient may struggle to communicate their needs due to difficulty in expressing themselves due to illness or weakness.
This device solves that issue by allowing patients to notify caretakers easily.
For mute patients, communication challenges can be even greater. In such cases, this device provides an effective solution, enabling patients to communicate their needs without verbal expression.
In office settings, during general meetings, ordering refreshments like tea, coffee, or snacks usually requires ringing a bell and waiting for an attendant. This process can cause delays and interruptions. With this device, orders can be placed quickly and discreetly, avoiding disruptions during meetings and saving time.
In restaurants, the device proves equally useful. With high customer volumes, waiters may struggle to serve customers promptly. When installed at tables, this system can allow customers to place orders directly to the manager or the kitchen.
The list of components required is detailed in the table.
Circuit and working
The device consists of two main sections: the transmitter and the receiver. Their operations are outlined below.
This story is from the October 2024 edition of Electronics For You.
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This story is from the October 2024 edition of Electronics For You.
Start your 7-day Magzter GOLD free trial to access thousands of curated premium stories, and 9,000+ magazines and newspapers.
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