Build a 80s Style Home Computer From Scratch From Arduino Components
Saturn V Lamp
Wireless Charging Sofa
Agreed - that also exposes the connection for the earth ground, which might be a good idea, though everything is already pretty well isolated so may not make a difference.
Flush Wall-Mounted Raspberry Pi Touchscreen
DIY Buck/Boost Converter (Flyback)
I like the idea of recycling in this way - one thing to be careful of is what you might be breathing using this technique.
Raspberry Pi Video Streaming
The ATTiny85 has a timer that can be clocked using a PLL, so you can get a PWM frequency of 256KHz, as opposed to 62.5KHz with an Arduino. That having been said, the Leonardo has a PLL-drivable timer too.See Great Scott's Buck converter tutorial for why the higher frequency is better (spoiler alert: greater efficiency and lower values needed)
Capacitive soil moisture measuring (with I2C)
thermostat raspberry pi
ATtiny85 Ring Watch
Raspberry Pi: Wall Mounted Calendar and Notification Center
Pincushion Breadboard Bracelet
How to control a 16x2 LCD using an AVR ATtiny2313
3-Wire HD47780 LCD for less than 1 dollar
Driving an HD44780 Display using a Shift Register and a Raspberry Pi
High Quality (and Safe) Copper Plating
3D Print captured nuts without pausing your print.
Mechanical Pocket Watch for 3D Print
arduino attiny85 charlieplexing
Twitter Tweets to RSS feed, abiding by the Twitter Rules, OAuth, PHP, Apps Engine are used
Maqueta sección Palacio de cristal del retiro (Madrid)
Arduino Watch with Nokia 3110 screen
Make a microcontroller-based boost converter
Digispark DIY: The smallest USB Arduino
Mr. Indecision - a small felt version of yourself that turns its head and looks at you.
upcycled sweater coffee sleeve/handwarmer