Pi Coin is a digital currency based on the Raspberry Pi 4 as the hardware carrier, utilizing a self-developed Timer algorithm paired with a Linux mining system. Miners are allocated the currency according to their computational power contribution on average. In terms of application, it will expand project consensus and aim to increase coin value through miner-built staking pools, lock-up dividends, and integration with third-party physical shopping malls and recharge systems. The Pi Coin miner boasts the advantages of small size, silent operation, and low power consumption, making it the preferred choice for home mining. Additionally, the project party can later recycle the miners to maximize their benefits.