OPT3001 is a single-chip lux meter, measuring the intensity of light as visible by the human eye. Measurements can be made from 0.01 lux up to 83k lux without manually selecting full-scale ranges by using the built-in, full-scale setting feature. This capability allows light measurement over a 23-bit effective dynamic range.

Si7021 offers better accuracy and a wider range for temperature and humidity readings, as compared to DHT11 and DHT22. It also comes in a significantly smaller size as compared to the former 2 sensors.

Details : The WittyFox ESP32 Storm board is an easy to use prototyping board developed specially keeping IoT Applications in mind. It allows users to upload their program wirelessly (OTA) by default or connect to the laptop using Witty Fox ESP Programmer.

WittyFox ESP Programmer is a more convenient CP2102 based USB to UART converter with a built-in ESP reset circuit. It makes programming and debugging ESP series boards easier and straightforward as the pin connections are 1:1 and can be directly connected to the ESP circuit.

The NFC Interface Transponder RF430CL330H is an NFC Tag Type 4 device that combines a wireless NFC interface and a wired SPI or I2C interface to connect the device to a host.