Devcon Archive logo
Devcon Forum Blog
  • Watch
  • Event
    Event: background logo
    • Devcon 7
    • Devcon 6
    • Devcon 5
    • Devcon 4
    • Devcon 3
    • Devcon 2
    • Devcon 1
    • Devcon 0
  • Categories
    Categories: background logo
    • Cryptoeconomics
    • Devcon
    • Developer Experience
    • Coordination
    • Core Protocol
    • Layer 2s
    • Real World Ethereum
    • Cypherpunk & Privacy
    • Security
    • Applied Cryptography
    • Usability
  • Playlists

Suggested

Loading results..

View all

About Devcon —

Devcon is the Ethereum conference for developers, researchers, thinkers, and makers.

An intensive introduction for new Ethereum explorers, a global family reunion for those already a part of our ecosystem, and a source of energy and creativity for all.

  • Watch
  • Devcon
  • Forum
  • Blog

Get in touch

devcon@ethereum.org

Subscribe to our newsletter

Crafted with passion ❤️ at the Ethereum Foundation

© 2025 — Ethereum Foundation. All Rights Reserved.

devcon 4 / ethereum for all develop mobile apps using mit appinventor

  • YouTube
  • IPFS
  • Details

Ethereum for all : develop mobile apps using MIT AppInventor

Duration: 00:14:26

Speaker: Jose Luu

Type: Talk

Expertise: Intermediate

Event: Devcon

Date: Invalid Date

Imagine a world where programming Ethereum on mobile is made easy, fun and accessible to anyone. AppInventor aims to make coding accessible to all by providing a graphical API to develop Android applications through high level components usually referred to by “blocks” (by Blockly). It comes from Google, then MIT, and is open source. The strength of AppInventor lies in its simplicity and ergonomics : kids can learn to build an app in a few hours, and business professionals can as easily construct a proof-of-concept of their ideas. Ethereum and public blockchains in general must be accessible to anyone, we are now making blockchain programming accessible to anyone with an AppInventor extension: Qaxh.Eth. With basic blocks such as connecting to Infura, "getBalance", “signTX”, "sendTx" or "getTxStatus" anyone can now create his own app to interact with Ethereum. I will show how I have added extensions based on web3j in order to create blocks for accessing the blockchain. The lightning talk will quickly present the technology, a workshop whose agenda is on another submission will have participants make their own mobile app and create more appinventor blocks, either borrowing functionality from web3j or fully making their own.

Categories

Developer InfrastructurecodingaccessibilityAPIopen-sourcebuildingPOCinfura
  • Related
Farcaster frames: building embeddable Ethereum apps preview
Devcon
Workshop
1:24:46

Farcaster frames: building embeddable Ethereum apps

Frames are an open standard for creating embeddable, interactive apps in social media feeds and on the web. They help solve one of the hardest problems for Ethereum dapp developers: distribution. Although frames originated on Farcaster, it's now possible to build cross-platform frames that work on Farcaster, Lens, XMTP, and the open web. In this hands on workshop we'll introduce the core concepts behind frames and build a simple frame app that interacts with a smart contract.

Keynote: Nomic Foundation’s vision for Ethereum’s tooling ecosystem preview
Devcon
Talk
17:35

Keynote: Nomic Foundation’s vision for Ethereum’s tooling ecosystem

Nomic Foundation is the nonprofit behind Hardhat. Nomic’s co-founder and CTO will walk you through Nomic’s long-term vision for a community-driven developer tooling ecosystem for Ethereum.

Augur preview
Devcon
Talk
15:24

Augur

Dr. Jack Peterson presents on Augur (http://www.augur.net/), an open-source, decentralized prediction market built on Ethereum.

Digital Identity preview
Devcon
Talk
17:20

Digital Identity

Christian Lundkvist of ConsenSys (https://consensys.net/) presents on digital identity.

Introduction to Snarks preview
Devcon
Talk
22:32

Introduction to Snarks

Blockchains are a hostile world were all information is public and computations are expensive. A technology called zkSNARKs is coming to the rescue: It allows both a tremendous speedup in verifying the correctness of a computation while at the same time it hides the private details from prying eyes. This talk tries to give an idea about how and why it works.

Missing Links in the Ethereum Stack preview
Devcon
Talk
22:19

Missing Links in the Ethereum Stack

Observations about what developer tools missing from the Ethereum stack, yet currently available to traditional web developers.

Scalable Responsive Đapps with Swarm and ENS preview
Devcon
Talk
26:48

Scalable Responsive Đapps with Swarm and ENS

Daniel Nagy gives their talk titled, "Scalable Responsive Đapps with Swarm and ENS"

Sikorka – Proof of Presence for Blockchain Applications preview
Devcon
Talk
13:52

Sikorka – Proof of Presence for Blockchain Applications

Sikorka – Proof of Presence for Blockchain Applications

Blockchain Model Canvas preview
Devcon
Talk
12:36

Blockchain Model Canvas

Blockchain Model Canvas

Shh! Whisper preview
Devcon
Talk
26:57

Shh! Whisper

Ethereum's Co-Creator Dr. Gavin Wood presents on Whisper (https://github.com/ethereum/wiki/blob...), the 'pitch black' P2P messaging protocol. Apologies for the poor video framing, individual slides can be found here - http://www.slideshare.net/gavofyork/w...