Book excerpt: This book was written to help anyone want to get started with STM32 Nucleo-32 board development. This book describes all the basic elements of the STM32 Nucleo-32 I/O development with step-by-step approach using GNU ARM, OpenOCD and mbed development. The following is a list of highlight topics in this book: * Preparing Development Environment * Setup Development Environment * Debugging * Digital Input/Output * Serial Communication - UART * Working with Analog Input (ADC) * Working with Analog Output (PWM) * Working with Analog Output (DAC) * Working with SPI * Working with I2C * mbed Development