Pomodorino

Pomodoro is a time management technique where you spilt your task into smaller ~20 Minute sections. This device helps you to keep focused

Daniel Grießhaber

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Description

Pomodorino is a small USB device with a full color RGB LED. It main use is to help you to keep track of your time management when using the pomodoro technique, but since it uses an Arduino compatible USB Bootloader you can freely and happily hack the thing to do whatever you want.

Judges for the Square Inch Project: please disregard this project since I did not finish it

Details

The device uses a ATTiny85 with a V-USB Bootloader that is Arduino compatible. Basically it is just a DigiSpark with an WS2812 LED strapped on top

Components

1 × ATTiny 85 Main MCU
1 × WS2812B Switches and RelaRGB LEDys / Electromechanical Relays
2 × 3.3V Zener Diodes (SOD80 Package) for the 3.3V logic level of USB
1 × 2.2kΩ 0603 Pull-Up for the D+ line
2 × 68Ω 0603 Current Limiting Resistors for the USB datalines

View all 7 components

Project Logs

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Judges for the Square Inch Project: please disregard this project since I did not finish it
Daniel Grießhaber • 12/22/2015 at 22:44 • 0 comments
Don't waste your time here, but take a look at my other 2 Project entrants:
- USB Power Meter
- DIL-Duino
Schematic done
Daniel Grießhaber • 10/24/2015 at 16:38 • 0 comments
First batch of PCBs
Daniel Grießhaber • 10/24/2015 at 16:23 • 0 comments

Main focus on this project was size, but after the first run of PCBs came back, I noticed that I could make it much much smaller. Also the USB PCB connector fits nicely into the USB Port of a MacBook Pro but is quite loose in some other sockets.