This is the first of a 2-part article that explains the codes behind Smart Contract Explained by Demonstration. This article explains how the seller Dapp works.
This step-by-step guide explains what Smart Contract does by walking you through a real example that you can try.
A demonstration of a Dapp that stores a file on IPFS and referenced in a Solidity Smart Contract on the Ethereum Blockchain.
An emit in Solidity triggers an event. This is a tutorial of how you emit an event in Solidity and watch for it in a DApp.
In this part, I will describe how PIR sensor was setup and explain where this project was lacking and how I could make it better in its next iteration.
In this part of my Ethereum IOT Kid Grounding Device, we will discuss the codes of the web service backend written in Node.js and responsible for executing Ethereum transactions.
In this part, we will discuss the business logic behind Grounder.sol, the Smart Contract that does the real work behind grounding my kid.
Internet of Trusted Things (IOTT) explores the integration of Internet of Things with Blockchain. To explore IOTT, I built little project and called it the Kid Grounder.
The underscores _; that are found littered in Smart Contract source codes have invited questions from developers all over who are just beginning to code Smart Contracts. Here, I attempt to demystify it.
Using Safe Remote Purchase as an example, I illustrate how a Smart Contract can execute and manage multiple Smart Contracts at different addresses.
Infura is a convenient tool for Smart Contract developers who do not want to run their own nodes. This is a process of using Infura to deploy a Smart Contract on the Ethereum Blockchain.
This is the final part of the Lottery Smart Contract series whereI will be walking through the codes of the Lottery Smart Contract to explain what some of the more important lines of codes do.
This is the first blog post of a 2-parter where I will document how to execute Safe Remote Purchase using a combination of Remix and MetaMask.
With light-sync is now possible to connect your Geth instance onto the Ethereum blockchain in as little as 15 minutes.
With Remix and Mist connected to my remote Geth node, now I can code smart contracts on the beach, in the plane and during a holiday!
Developing a simple fund transfer app with Citibank's Open Banking API
I built a Sigfox button that when pressed, sends a message to my mobile phone to tell me that its been pressed.
For a few years, I have dreamt of building my own arcade console. It has remained a dream because where I live, there's no space to build nor store one. So I built a handheld one instead.
I wish to build a Bluetooth-based pulse sensor. Imagine a Fitbit that takes your pulse rate as you exercise and send this data real-time to your mobile phone.
With the Go Dutch Smart Contract, bill splitting on supper dates now becomes immutable