Join makers around the world sharing their projects! Watch the show-and-tell LIVE right now!

Button-Controlled Door Lock

From Tyler Stogner and Grayson Bennett on

Have you ever had your hands full of groceries, wrapped up in the freezing cold, desperate to get into the warmth of your own house? Then you may know the struggle of having to fumble for your keys or having to set down all the groceries just to unlock the door and pick them back up. That is now a thing of the past! Using two Photons, a servo and small modifications to your door lock, you can unlock and lock your door at the push of a button!

Connected to one of the Photons (we will call this the Receiver Photon) is an Adafruit 315 MHz RF Receiver. To compliment the RF receiver, an Adafruit 315 MHz, 2 button remote control was used to communicate with the receiver. The RF receiver is a latching type receiver. This means that it functions like a selector switch. When the button A on the remote is pushed, it sets the voltage of the respective pin (D2 on the receiver) to high. The nominal voltage of the output is the same voltage as the power supplied.

Read more and see more on YouTube

Stop breadboarding and soldering – start making immediately! Adafruit’s Circuit Playground is jam-packed with LEDs, sensors, buttons, alligator clip pads and more. Build projects with Circuit Playground in a few minutes with the drag-and-drop MakeCode programming site, learn computer science using the CS Discoveries class on, jump into CircuitPython to learn Python and hardware together, or even use Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for MakeCode, CircuitPython, and Arduino. It has a powerful processor, 10 NeoPixels, mini speaker, InfraRed receive and transmit, two buttons, a switch, 14 alligator clip pads, and lots of sensors: capacitive touch, IR proximity, temperature, light, motion and sound. A whole wide world of electronics and coding is waiting for you, and it fits in the palm of your hand.

Join 9,200+ makers on Adafruit’s Discord channels and be part of the community!

CircuitPython – Python on Microcontrollers is here!

Have an amazing project to share? Join the SHOW-AND-TELL every Wednesday night at 7:30pm ET on Google+ Hangouts.

Join us every Wednesday night at 8pm ET for Ask an Engineer!

Follow Adafruit on Instagram for top secret new products, behinds the scenes and more

Maker Business — Japanese word working and more in December’s issue of HackSpace magazine!

Wearables — Solder-less magic

Electronics — = != ==.

Biohacking — Finding Bliss with Anandamide

Python for Microcontrollers — sysfs is dead! long live libgpiod! libgpiod for linux & Python running hardware @circuitpython @micropython @ThePSF #Python @Adafruit #Adafruit

Get the only spam-free daily newsletter about wearables, running a "maker business", electronic tips and more! Subscribe at !

No Comments

No comments yet.

Sorry, the comment form is closed at this time.