Anyone keeping up with financial news today is surely inundated with stories about Bitcoin and other cryptocurrencies. While most of the news is about the potentially inflated value of some of these coins, and how drastically they have changed in price in just a decade, there are other interesting things going on behind the scenes. For example, the currency Ethereum allows for a distributed programming platform of sorts to be implemented in the blockchain, which [GusGorman402] has taken advantage of in his latest project (YouTube link, embedded below).
The device that he built is based on an ESP8266 which connects to a router running an instance of a Go Ethereum node. Essentially, he uses the Ethereum blockchain to control an LED connected to the ESP8266 using a feature of Ethereum called a smart contract. While this might be a misleading name, a smart contract is basically an autonomous program that can do virtually anything a programmer writes into it. While this is a roundabout way to write a “Hello World” program, it does demonstrate the power of the Ethereum platform when compared to other cryptocurrencies.
If you’re interested in currency trading, blockchains, cryptography, or the future of computing, be sure to check out the detailed video after the break. It’s a curious new tool, and it will be interesting to see how developers and hackers alike use it to accomplish things we’ve never thought of yet.