A breakout board is a experimentation board/PCB which offers access to component's internal signals, pre-assembled systems or high density components signals. Thank to the breakout boards, you can use components like (ex: BME280) and other component that, otherwise, would be impossible to use for makers and hobbyist. With breakouts, you can easily use RTC clock, SD card reader, TFT screen in your electronic projects.
Maestro Mini from Pololu
8 KB memory (3000 servo positions)
Configuration Software, Autonomous script, USB-Serial script, TTL serial
Arduino library & SDK
Bus: I2C or SPI (Breakout and StemmaQT)
Temperature - ±1°C accuracy
Pressure - ±1 hPa absolute accuracy
5v and 3.3V compatible
SX1231 based module with SPI interface
50mA to 150mA
~30mA during active radio listening.
Packet radio with ready-to-go Arduino libraries
Uses the amateur or license-free ISM band (ITU "Europe" license-free ISM)
Use a simple wire antenna or spot for uFL or SMA radio connector
500m to 2Km, even 5 (depending on the Antenna)
For 5V 1A solar panel
Charging via USB/Solar
Charge @ 900mA max
Discharge @ 1000mA max
12 bits résolution
A true analog output!!!