Yongchang He

An IoT and blockChain developer; interested in Cloud Computing; love coding...

Saskatoon, Saskatchewan Joined on Oct 9, 2021 yongchanghe8@gmail.com https://tealfeed.com/yongchanghe

Education

Computer Science, master's, University of Saskatchewan

Java / Solidity / Cpp / Linux / MySQL / Node.js / JavaScript / React.js / HTML / Truffle / Ganache

Ethereum BlockChain development;
Solidity smart contracts programming;
Arduino CPP programming;

Azure Digital Twins programming...

40 posts published

148 comments written

13 tags followed

Yongchang He

Nov 20 '22

Multiple developers work simultaneously using their own branch on git

1 min read

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Yongchang He

Sep 20 '22

Parse RTCM 3.x correction data from serial input

#rtcm #serial #python #gpsrtk

2 min read

Yongchang He

Aug 31 '22

Wi-Fi communication using two u-blox C099-F9P application board

#wifi #gps #gnss #iot

2 min read

Yongchang He

Aug 1 '22

Interact with ADT using Postman

#digitaltwin #postman #beginners #api

2 min read

Yongchang He

Jul 25 '22

Work With Azure Digital Twin - code a client app

#digitaltwin #tutorial #beginners #csharp

4 min read

Yongchang He

Jul 18 '22

Deploy React app with JSON server on Heroku

#react #jsonserver #heroku #tutorial

2 min read

Yongchang He

Jul 11 '22

Hyperledger Fabric architecture

#beginners #blockchain #hyperledger #web3

3 min read

Yongchang He

Jul 4 '22

Hyperledger Fabric and MSP

#beginners #blockchain #hyperledger

2 min read

Yongchang He

Jun 27 '22

Deploy your React App on Github in 5 minutes

#github #beginners #programming #tutorial

2 min read

Yongchang He

Jun 20 '22

Q&A with Self-built Blockchain and Dapps (2)

#homebrew #webdev #codenewbie

2 min read

Yongchang He

Jun 13 '22

Tutorial - Using create2 to predict the contract address before deploying

#programming #solidity #blockchain #tutorial

2 min read

Yongchang He

Jun 6 '22

Tutorial - play with an auction demo based on ERC721

#tutorial #programming #solidity #nft

4 min read

Yongchang He

May 30 '22

tutorial - Delete a contract using selfdestruct()

#solidity #programming #tutorial

2 min read

Yongchang He

May 24 '22

Tutorial - Create a contract from another contract with solidity

#solidity #programming #tutorial

2 min read

Yongchang He

May 16 '22

Build a simple dApp using truffle, ganache, Ethers.js and React(1)

#truffle #ganache #blockchain #tutorial

8 min read

Yongchang He

May 10 '22

Build a blog with a JSON server

#javascript #beginners #programming #json

6 min read

Yongchang He

May 2 '22

Set up a wired serial communication between Arduino boards

#iot #cpp #arduino #serialport

2 min read

Yongchang He

Apr 25 '22

Set up a home server and access it from everywhere

#linux #ssh #tutorial #zerotier

2 min read

Yongchang He

Apr 18 '22

Set up a private network with multiple PCs using Go Ethereum (Geth)

#tutorial #blockchain #geth #poa

4 min read

Yongchang He

Apr 14 '22

Q&A with Self-built Blockchain and Dapps (1)

#blockchain #geth #beginners

2 min read

Yongchang He

Apr 11 '22

Tutorial: Play with Truffle & Ganache

#blockchain #truffle #tutorial #ganache

5 min read

Yongchang He

Apr 4 '22

Tutorial: Play with Geth (Go Ethereum)

#tutorial #blockchain #beginners #ethereum

4 min read

Yongchang He

Mar 28 '22

RBAC, ABAC and CapBAC in IoT

#iot #management #security #accesscontrol

2 min read

Yongchang He

Mar 21 '22

The basics of IoT devices Management

#iot #beginners #management #cloud

4 min read

Yongchang He

Mar 16 '22

Tutorial: Play with a Speech-to-Text API using Node.js

#hackwithdg #node #programming #tutorial

148

3 min read

Yongchang He

Mar 10 '22

Merkle Tree in BlockChain

#beginners #tutorial #blockchain #hashtree

2 min read

Yongchang He

Mar 4 '22

Hi, Java developers: It's time to try Web3j for Ethereum

#java #programming #ethereum #blockchain

2 min read

Yongchang He

Mar 3 '22

IoT - knowledge about MQTT

#iot #mqtt #beginners #programming

3 min read

Yongchang He

Feb 28 '22

Tutorial: Ethereum BlockChain Development (5)

#ethereum #blockchain #javascript #tutorial

3 min read

Yongchang He

Feb 25 '22

IoT - knowledge for beginners

#iot #beginners

5 min read

Yongchang He

Feb 22 '22

Tutorial: Ethereum BlockChain Development (4)

#ethereum #blockchain #javascript #tutorial

6 min read

Yongchang He

Feb 18 '22

Tutorial: Ethereum BlockChain Development (3)

#ethereum #blockchain #javascript #tutorial

4 min read

Yongchang He

Feb 17 '22

Tutorial: Ethereum BlockChain Development (2)

#ethereum #blockchain #hardhat #tutorial

5 min read

Yongchang He

Feb 16 '22

Tutorial: Ethereum BlockChain Development (1)

#ethereum #blockchain #hardhat #tutorial

4 min read

Yongchang He

Feb 14 '22

Learning BlockChain? Here are the things you want to go through

#blockchain #saas #kaleido #beginners

5 min read

Yongchang He

Feb 11 '22

Play with Docker: install MySQL and realize data persistence

#mysql #docker #aws #tutorial

3 min read

Yongchang He

Feb 9 '22

Judging Valid Parentheses

#leetcode #java #algorithms #hashmap

1 min read

Yongchang He

Feb 8 '22

Finding the longest common prefix string amongst an array of strings

#leetcode #java #algorithms #programming

1 min read

Yongchang He

Jan 21 '22

Setup a Nginx Webserver in 5 minutes

#nginx #webserver #beginners #aws

3 min read

Yongchang He

Oct 14 '21

Examples using FileReader and FileWriter to read and write plain text

#java #beginners #programming #tutorial

2 min read

Writing Debut

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