Fields for the given key ($2) in the given hash ($3). The hash looks like follows: 1/1 → strings at the level 1 of the 1st object 1/2 → strings at the level 1 of the 2nd object … 2/1 → strings at 2nd ...
This Arduino library provides a convenient and easy-to-use interface for the PH4502C sensor, allowing you to effortlessly integrate it into your Arduino projects. The PH4502C sensor is a ...