Christmas is coming closer, so here is my contribution to put you in the right mood. It is a blog hitcounter, that rings a bell. Literally. It puts a smile on your face, every time someone hits your blog.
It consists of an Arduino board, a bell, a servo and a couple of lines of code in c, python and php. Most parts are fairly common and should be easy to get.
So what is needed?
Arduino Board. I got an Arduino Diecimila from Adafruits. In the meantime there are really cheap and handy clones out there, e.g. the really bare bone board from Modern Devices, especially if you want to use them on a breadboard.
A servo motor. Any servo will do. I took an old one that was used in my former hobby.
A bell. Preferably one that is small enough to shake it with the servo.
Two paperclips. A large one to hold the bell and a small one to build the actuator to ring the bell.
Wires to connect the servo with the Arduino.
A website. In fact it has not to be a website or a blog. Actually everything that can be counted, will work.
A PC or a Mac to connect the Arduino board with the blog or website.
You may need an soldering iron, if the wires can not be connected directly to the Arduino.
Eink, E-paper, Think Ink – Collin shares six segments pondering the unusual low-power display technology that somehow still seems a bit sci-fi – http://adafruit.com/thinkink
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 code.org, 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.