Snoozelock – the multistep alarm clock #ShowAndTell #Adafruit @Adafruit

From the May 15th edition of Adafruit Show and Tell, Lucian demonstrates his awesome project: Snoozelock

This is a three part wireless alarm clock that functions kind of like an airlock. You attach one part to your ceiling, one to your door, and one somewhere outside your bedroom like your bathroom door. The alarm goes off on the ceiling node, and to turn it off, you have to go out the door, close the door, and then activate the bathroom node. Go back and open your bedroom door again, and it turns back on. And it stays like this for 10 minutes. There’s absolutely no optionality to it. Once it goes off, you’re up. Good morning!

It’s built on mbed/bluepill, NRF24l01 wireless, Adafruit’s DS3231 RTC, SSD1306, 5V buzzers, and AA batteries. It works for about 8-10 months before needing the batteries replaced. Lucian is still working on the case, saying it’ll need screw on covers to make sure it takes as long to disassemble as it does to time out normally.

So yeah. Snoozelock. A horrible device for lazy people. You’re welcome, sleepy me.

See the appearance on the Adafruit Show and Tell episode below. And of you want to show your own project, here is how to join the fun every Wednesday at 7:30 PM Eastern.




Adafruit publishes a wide range of writing and video content, including interviews and reporting on the maker market and the wider technology world. Our standards page is intended as a guide to best practices that Adafruit uses, as well as an outline of the ethical standards Adafruit aspires to. While Adafruit is not an independent journalistic institution, Adafruit strives to be a fair, informative, and positive voice within the community – check it out here:

Join Adafruit on Mastodon

Adafruit is on Mastodon, join in!

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, TinyGO, or even use the Arduino IDE. Circuit Playground Express is the newest and best Circuit Playground board, with support for CircuitPython, MakeCode, 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.

Have an amazing project to share? The Electronics Show and Tell is every Wednesday at 7pm ET! To join, head over to YouTube and check out the show’s live chat – we’ll post the link there.

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

Join over 36,000+ makers on Adafruit’s Discord channels and be part of the community!

CircuitPython – The easiest way to program microcontrollers –

Maker Business — “Packaging” chips in the US

Wearables — Enclosures help fight body humidity in costumes

Electronics — Transformers: More than meets the eye!

Python for Microcontrollers — Python on Microcontrollers Newsletter: Silicon Labs introduces CircuitPython support, and more! #CircuitPython #Python #micropython @ThePSF @Raspberry_Pi

Adafruit IoT Monthly — Guardian Robot, Weather-wise Umbrella Stand, and more!

Microsoft MakeCode — MakeCode Thank You!

EYE on NPI — Maxim’s Himalaya uSLIC Step-Down Power Module #EyeOnNPI @maximintegrated @digikey

New Products – Adafruit Industries – Makers, hackers, artists, designers and engineers! — #NewProds 7/19/23 Feat. Adafruit Matrix Portal S3 CircuitPython Powered Internet Display!

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.