Sol.College

Full lesson

VOLTX

Decentralized electricity theft detection — ESP32 + ML + Solana community rewards. Built for Frontier Hackathon.solana blockchain iot esp32 electricity-theft fastapi machine-learning anchor rust india

What it does

From the project README:

Electricity theft costs India **₹30,000 crore every year** — and Tamil Nadu alone loses over **₹4,000 crore annually**. Honest households pay inflated bills to subsidise their neighbours' theft. Utility linemen detect theft manually, once a month, creating massive gaps in enforcement.
Original
gowthamsp0606/VOLTX
SuperStack fork
Blockchains/VOLTX @ e5996d2
Stars
16
Last push (original)
2026-05-10
Languages
JavaScript, Python, CSS, Rust, C++, HTML
Detected stack
solana-py
Categories
GamingDePIN
Licence
MIT

Architecture

24 source files. By extension: .jsx ×13, .py ×8, .js ×2, .rs ×1.

Top-level directorySource files
VOLTX Frontend15
(root)9

Dapp: devnet deploy pending

⏳ Devnet deploy pending — goes live when the devnet wallet is topped up. This fork's own dapp is not deployed yet, so there is no program address or transaction to show. It is queued in dapp-queue.txt; once devnet SOL is available it is deployed, exercised with real devnet transactions, and this section switches to the live dapp at /dapps/voltx/. Until then, the lesson and step-by-step guide below are complete, and you can run it locally with the commands below.

Key code, explained

Excerpts chosen automatically where the code uses the most Solana concepts, pinned to the fork's commit.

gowthamsp0606/VOLTX · lib.rs L277–300 @ e5996d2 · MIT · original
    )]    pub state: Account<'info, StateAccount>,     #[account(mut)]    pub admin: Signer<'info>,     pub system_program: Program<'info, System>,} #[derive(Accounts)]#[instruction(community_id: String)]pub struct CreateCommunity<'info> {    #[account(        mut,        seeds = [b"state", admin.key().as_ref()],        bump,        has_one = admin    )]    pub state: Account<'info, StateAccount>,     #[account(        init,        payer = admin,        space = 8 + CommunityAccount::SIZE,
  1. Line 281 pub admin: Signer<'info>,: Requires this account to have signed the transaction.
  2. Line 291 seeds = [b"state", admin.key().as_ref()],: Declares the PDA seeds. Anchor re-derives the address and rejects the account if it doesn't match.
  3. Line 292 bump,: Uses the bump seed, the extra byte that pushes the derived address off the ed25519 curve.
  4. Line 293 has_one = admin: Checks that a stored pubkey field matches the passed account.
  5. Line 298 init,: Creates and pays for a new account. Space and payer must be specified.
gowthamsp0606/VOLTX · pda.py L1–22 @ e5996d2 · MIT · original
# get_pda.pyfrom solders.pubkey import Pubkeyfrom solders.keypair import Keypairimport json PROGRAM_ID = Pubkey.from_string("2Ru7HMxTjdZkVyRgQN3ygZSXh6Zdx62y2kryqwTQn24k") # Load your admin walletwith open("admin.json") as f:    secret = json.load(f)ADMIN = Keypair.from_bytes(bytes(secret)) # Derive PDA using seeds = [b"state", admin_pubkey]pda, bump = Pubkey.find_program_address(    [b"state", bytes(ADMIN.pubkey())],    PROGRAM_ID) print("PROGRAM_ID    :", PROGRAM_ID)print("ADMIN WALLET  :", ADMIN.pubkey())print("STATE_ACCOUNT :", pda)print("BUMP          :", bump)
  1. Line 13 # Derive PDA using seeds = [b"state", admin_pubkey]: Declares the PDA seeds. Anchor re-derives the address and rejects the account if it doesn't match.
  2. Line 14 pda, bump = Pubkey.find_program_address(: Derives a PDA from seeds and the program ID and returns the address with its canonical bump.
  3. Line 14 pda, bump = Pubkey.find_program_address(: Uses the bump seed, the extra byte that pushes the derived address off the ed25519 curve.

How to run, build and test

These commands come from the repo's own manifests (package.json scripts, Anchor.toml, Cargo, go.mod, Makefile). Check the README for prerequisites and environment variables.

DirectoryCommandRuns
VOLTX Frontendnpm run devvite
VOLTX Frontendnpm run buildvite build

What you could build from it