This application report provides an insight into several of the most frequently used infrared protocols and especially their flexible implementation using the Texas Instruments MSP430FR4xx of low-power microcontrollers. The MSP430FR4xx microcontrollers are primarily targeted at remote control application that are equipped with infrared modulation function and an LCD display. The infrared modulation combinatory logic works with rich peripheral resources (for example, timers, RTC, WDT, and SPI) to generate infrared waveforms for transmitting infrared signals with minimal software overhead and intelligent power consumption.