This is an example of an alarm control panel using many of the STM32 advanced peripherals. The serial interfaces and GPIO can be used to connect sensors and I/Os. The FSM Controller provides a high speed parallel interface to an external QVGA LCD controller. I2S interfaces are used to connect to Audio Codecs or DACs for audio output. The SDIO interface can be used for firmware upgrades or with an SD Wi-Fi Card to connect via Wi-Fi to a home network.