A list of SaaS, PaaS and IaaS offerings that have free tiers of interest to devops and infradev

A collection of (mostly) technical things every software developer should know about

An attempt to answer the age old interview question "What happens when you type google.com into your browser and press enter?"

Access the data of 3-axis magnetometer and DMP from MPU9250 with SPI interface, All data fusion via EKF/UKF/CKF/SRCKF algorithm