5-Minute Maker Hack To Build A Smart Lock Using One Transistor

Today we will show you the process of the DIY smart lock with a 4-digit PIN Combination. You need a few components and follow our circuit to get started.

We will show you the magic of Analog Electronics circuits in this series of videos. You will learn how to use transistor logic to design interesting circuits.

Let’s start.

Do it under adult supervision, if you are less than 16!

INSIGHTS:

• It can manage communications via email, answer inward-bound calls, live webchats coverage, and social media monitoring.
• Small businesses can fully augment or outsource their customer service with the help of a virtual answering service.
• The service complexity and the volume of the call typically are the components that decide the cost of the online answering service.
• It is also known as a live receptionist, receptionist service, or virtual receptionist.
• The small business that cannot afford an in-house receptionist, can use this tool for improving customer services

Definition of Virtual Answering Service 

It is a service where phone call answering can be outsourced for businesses. It covers a range of services be it as simple as message-taking or basic answering as well as delivering the entire customer service.

The Function of Business Answering Service

A virtual answering service is a tool that is flexible relatively and businesses can tailor it according to their needs. These needs can be straightforward and simple even when it comes to being automated. Some cases might require a dedicated agent as well to carry out a conversation with callers that are guided.

This online or cloud-based service allows picking up the calls directed to one’s number either through third-party operatives or an automated response to handle communication, taking messages or forwarding calls as well as handling the telephone communications.

Components Required:

1) PCR406 Thyristor
2) BC547 Transistor
3) 1000uF Capacitor [x1] 4) 10uF Capacitor [x3] 5) Tactile DIP Switches [x5] 6) Buzzer
7) LED
8) Jumper Wires

Watch the Video to Build A Smart Lock Using One Transistor

Steps to Follow

1. Place the switches on the breadboard.
   
2. Place the transistor and thyristor on the breadboard.
3. Connect 180K Resistance to the 4th Switch, 220 Ohm Resistance to the other side of the switch, 5.1K Ohm Resistance to the Gate of the Thyristor, a 220 Ohm Resistance from Positive Rail to Anode of Thyristor, a jumper from Cathode to Base of BC547, Emitter of BC547 to Ground, a 1k Resistance from Positive Supply to the anode (+) of Led and Cathode of LED (-) to Collector of BC547, a 220Ohm Resistance from Positive Supply to the positive pin of buzzer and negative of the buzzer to the collector of BC547, a wire from the negative supply to the switch and another side of the switch to the Gate of Thyristor and the wiring amongst the switches.
4. Place the capacitors necessary to build the circuit on the board.
5. Check if you have connected all the wires carefully in the system. You can rewind the video or you can refer to the circuit diagram also.
6. Connect a 9V battery or a 12V Adapter to the circuit.

This is an interesting project that you can design to secure your system. You can use these DIY smart locks for many other purposes. You could also play with your friends.