While working with our cryptomining and cryptotrading tasks, I found some arduino laying around and asked my friends to help me in making this project alive.

We spent several nights to make 4004 screen work correctly, then also spent time at hackathon to develop and debug the code. So it's working now and it needs your help to grow to something more useful than just tracking and notifying. Already looking cool anyways!

![Img5](https://imgur.com/xCb04yg.png)

## Cryptoduino project description (English)
This project aims to create an arduino cryptocurrency notificator display that shows you current rates of different cryptocurrencies and notifies if something drastically changes.

![ImgA](http://imgur.com/dRceN7b.png)

## BOM (Bill of materials)
1) Arduino Mega 2560
2) Ethernet shield
3) Serial display (screen) 4004 (40 symbols, 4 rows)
4) Potentiometer to control backlight contrast (up to 4.7 kOhm)
5) Two cablepins for power
6) One cablepin for backlight enabling
7) FET Transistor (for example, irf540n) for backlight

![ImgB](http://imgur.com/RTQFlgV.png)

## Connecting schematics
1) Insert screen into the middle of arduino (pins 32~47)
2) Connect screen power to 5v and ground pins (on 4004 screen it's in bottom left if you look at the screen)
3) Connect Gate pin of the FET transistor (irf540n) to A13 pin, Drain pin to the Kathode of the backlight
and the Source pin to ground
4) Connect potentiometer to pins 44 and 43

Flash the firmware and it should work: 

![Img1](https://imgur.com/UENnyzJ.png)

This version can only show rates (4 currencies: high, low and last trade at a time).

## Contributing
You're welcome to contribute to this project. Look at the task list for ideas.

![Img3](https://imgur.com/kgKMCVL.png)

## Task list (to-do)
* Make the button to change displayed data (screen switcher)
* Add other exchanges and switching possibility
* Add some arbitrage options to compare rate on different exchanges

![Img2](https://imgur.com/40uHZSj.png)

## Project source code
# https://github.com/sxiii/cryptoduino

## Current contributors
* @sxiii (Den I.) - project idea, support, integration & updates
* @Leinlawun (Sergey S.) - software
* Radiotechnik (Dmitry G.) - hardware
* @dmimary (Maria D.) - wooden box

![Img4](https://imgur.com/VjqN5r3.png)

<br /><hr/><em>Posted on <a href="https://utopian.io/utopian-io/@sxiii/cryptoduino-arduino-cryptocurrency-rate-change-notificator">Utopian.io -  Rewarding Open Source Contributors</a></em><hr/>