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Cardano Setup

Set up a Cardano wallet on the Preprod testnet so the workshops have somewhere to send and receive funds. The workshops use Yoroi, but any Cardano wallet that supports Preprod will work.

Install Yoroi​

Yoroi is a browser-extension and mobile wallet for Cardano. Head to the Yoroi website and install the extension for your browser.

Create a wallet​

After installing the extension, click Create Wallet in the extension. You will set a password and be shown a recovery phrase. Back up the recovery phrase somewhere safe - anyone who has it controls the wallet.

  • Create a fresh wallet for these workshops; don't reuse a mainnet wallet.
  • Write down the recovery phrase and never share it.

Request tADA​

tADA is the testnet version of ADA, used to pay fees on Preprod.

  1. Switch to Preprod. Open Yoroi → Settings → Switch Network → Preprod Testnet. An orange banner at the top confirms you're on Preprod.
  2. Copy your receive address. Wallet → Receive tab → copy the address (starts with addr_test1...).
  3. Hit the faucet. Go to docs.cardano.org/cardano-testnets/tools/faucet, select Preprod Testnet as environment, Receive test ADA as action, paste your address, and click Request funds.

Within a few seconds, the faucet sends 10,000 tADA to your wallet. That's more than enough for every workshop in this section.

Sending and Receiving tADA​

Now that you have tADA in your wallet, practise sending and receiving - you'll need this flow constantly when testing IoT projects that interact with the chain.

CardanoThings PingPong wallet

For testing transaction flows on Preprod, send tADA to the CardanoThings PingPong wallet - it auto-refunds your transaction (minus the network fee) within ~60 seconds. Perfect for exercising flows without finding a friend with a Preprod wallet.

Address: addr_test1qpvla0l6zgkl4ufzur0wal0uny5lyqsg4rw7g6gxj08lzacth0hnd66lz6uqqz7kwkmx07xyppsk2cddvxnqvfd05reqf7p26w

Preprod-only.

To send tADA: open Yoroi → Send tab, paste the recipient address (use the PingPong address above to test), enter an amount, confirm. The transaction takes a few seconds to land.

Checking Transactions​

Once you've sent or received tADA, verify it on a block explorer using the transaction hash.

What is a transaction hash (txhash)?​

A transaction hash (or txhash, transaction ID) is a unique identifier for a single transaction on the chain - a fingerprint. On Cardano they're 64-character hexadecimal strings (no 0x prefix), e.g.:

d4d57c0339eb955c4c5f80d87779bbf6b820aa0387b2349adf2f7c7ce074c909

Every Cardano transaction has a unique txhash you can use to look up its details.

Finding your transaction hash​

In Yoroi:

  1. Go to the Transactions tab.
  2. Click any transaction in the list.
  3. The transaction details panel includes the txhash (64-char hex string).
  4. Copy the txhash.

Looking up transactions on CardanoScan​

Once you have a txhash, look it up on Preprod CardanoScan:

  1. Go to preprod.cardanoscan.io.
  2. Paste the txhash into the search bar.
  3. The transaction view shows:
    • Sender and receiver addresses
    • Amount transferred
    • Transaction fee
    • Block number and timestamp
    • Status (confirmed / pending)

This is especially useful when testing IoT projects - you can verify that transactions were sent and received as expected.

CardanoScan is the most popular explorer, but several others work too: Adastat, Cexplorer, pool.pm. They differ in features and UI but all let you look up transactions, addresses, and other on-chain data.

Further Resources​

Adapted from the CardanoThings workshop series, originally produced under Project Catalyst Fund 11. Source code: github.com/CardanoThings/Workshops/Workshop-01.