I’ve had several requests for an electric door lock or remote operated door lock so I decided to make a simple one using a cheap sliding bolt and an RC set-up using one servo.
You could just use the servo with a battery and a switch or button if you modify the servo by removing the circuit board inside. There are plenty of videos on YouTube showing how to do this.
RC transmitter and receiver
Probably a drill and screwdriver to mount the bolt on the door
I only used double sided tape for this demonstration.
In response to several requests I am giving the eBay listings used for my R/C equipment, but please understand I am not recommending these items to you for any special purpose. These are just the ones that I used. I would recommend you did your own search on eBay or Amazon or anywhere you like and make your own choice. In fact I would recommend you bought a simple 1 or 2 channel remote control relay unit designed for this sort of job which is much cheaper although you would need to modify the servo to make it work with DC voltage. Using a proper r/c transmitter is a waste of money for a door lock unless you intend to use it for planes or cars afterwards.
The radio control transmitter and receiver listing http://www.ebay.co.uk/itm/190888163364
Last time I bought servos I got 10 on this listing http://www.ebay.co.uk/itm/261521757538
and recently I bought a 12V Single Channel Fixed Encoding Wireless Remote Control Switch on this listing http://www.ebay.co.uk/itm/400628157682
The battery pack is 4 AAA batteries in a holder that came from a small torch that I modified by adding a suitable plug to match the receiver.
If you don’t want to use an r/c servo then you could buy a ‘door lock solenoid’ actually designed for the job, here is an example http://www.ebay.co.uk/itm/190856003511
On the subject of modifying servos here is a very comprehensive video by Forrest Trenaman which is worth watching even though it leaves the servo controlled by a radio receiver so it is unsuitable for this case http://youtu.be/6G1nHfvl4aI
You could follow the general flow of this video but the simple change is that you remove the circuit board entirely and connect your DC power supply directly to the motor via your switch so the servo drives your door bolt in and out continuously and you have to judge when it is locked or unlocked.
Filmed using FujiFilm FinePix S4800
Edited using Serif MoviePlus Starter Edition
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IoT, Auto Electronics Promoting FPCB Industry Enlargement
Flexible Printed Circuit Boards Market report, published by Allied Survey, states that the international market is anticipated to realize 27 billion by the year 2022, raising at a CAGR of 10.4% from 2016 – 2022.
Asia-Pacific reigned over the world-wide market, in the case of revenue, making up upwards of 46% in 2015, pursued by North America.
FPCBs are popular across applications e . g . LCD display, mobile display, connectivity antennas, and flexible circuitry used by re-chargeable batteries. Rise in need for consumer electronic goods, surge in desire for Internet of Things (IoT), and adopting of FPCBs in vehicle applications drive the market progress. Likewise, surge in demand for automated bots is supposed to supply profitable possibilities to industry members. Multilayer FPCBs directed the FPCBs area, and is expected to keep up this trend in the forecast time period. Even so, the rigid-flex FPCBs segment is believed to view major development in the future, as a result of the compact size and reduced power usage.
Among consumer, consumer electronics dominated the world-wide market in 2015, making up roughly 30% share. Nevertheless, auto electronics is expected to develop at the highest CAGR of 10.7%, caused by surge in need for tough devices with upgraded efficiency.
Asia-Pacific was the big revenue contributor in 2015, and is expected to maintain its dominance in the coming years, on account of surge in quantity of electronic applications. On the other hand, enhancements in electronic gadgets and industrial systems are expected to maximize the FPCBs market growth, largely in the Asian countries, like China, Japan, Oceania, plus India.
Flexible PCBs are really reliable interconnectivity alternatives for a number of electronic products with complicated circuitry. On the other hand, they supply loads of benefits e . g . high efficiency and minimized system maintenance. Multilayer FPCBs account for just about 30% of the complete FPCBs market, because of their resilience and high efficiency. On top of that, enormous demand for electronics applications and client shift towards small sized printing to get to better efficiency are expected to pump up its consumption in the electronic gadgets, vehicle, along with other market sectors, says Jeshin Jayamon, Research Analyst, Semiconductor & Electronics Research, Allied Research.
LAMEA is projected to expand at the highest CAGR all through the analysis period of time, on account of surge in portable appliances and surge in the consumption of FPCBs in vehicle applications. On the other hand, technological advancements to triumph over power loss complications in extreme conditions are anticipated to offer rewarding opportunities for industry competitors in the future.
Main Results Of The Flexible Printed Circuit Boards Market
In 2015, multilayer FPCBs took over the world-wide FPCBs market, as to revenue, and is anticipated to expand at a CAGR of 10.7% all through the forecast period of time.
Consumer electronics led the market, making up roughly 30% share in 2015.
China was the significant shareholder in the Asia-Pacific FPCBs market, making up approximately 34% in 2015.
The crucial competitors doing business in the FPCB market have adopted new product roll-out as their preferred approach to increase their market foothold. The main members exhibited in this report consist of NOK Corporation (Nippon Mektron Ltd.), Sumitomo Electric Industries, Ltd. (SEI), Fujikura Ltd., Multi-Fineline Electronix, Inc., Zhen Ding Technology Holding Limited (ZDT), Nitto Denko Corp., Interflex Co., Ltd., Career Technology, FLEXium Interconnect, Inc., plus ICHIA Technologies Inc.