Recently, Elecrow has invented a series of new crowtail modules and make a Crowtail Starter Kit for the Arduino starters to dig into the Arduino world easier and quicker. These 31 modules have their special features and can be used in many projects to make life easier.
For example, you can have a look at the Crowtail- RGB-LED module with 4 pcs of WS2812B which is a Chainable & Addressable LED. Users can control all the LED with only one microcontroller pin! Besides, the LED bar can be also chainable, that is, you can connect more than one LED bar together to make your project more dreamful. In this module , you can control every LED whit different color at the same time.
Then is the Crowtail- UV Sensor ML8511, it is an easy to use ultraviolet light sensor. The MP8511 UV (ultraviolet) Sensor works by outputing an analog signal in relation to the amount of UV light that’s detected. This breakout can be very handy in creating devices that warn the user of sunburn or detect the UV index as it relates to weather conditions.
What's more, there are also other modules that you can use to your project such as Arduino room for a flagging tree to take care of this tree in a good condition.