ATD
BeagleBone Black
BeagleBone® Black is a low-cost, high-expansion, community-supported development platform for developers and hobbyists. Users can boot Linux in under 10 seconds and get started on development in less than 5 minutes with just a single USB cable. Like its predecessors, the BeagleBone® Black is designed to address the Open Source Community, early adopters, and anyone interested in a low cost ARM® Cortex™-A8 based processor. It has been equipped with a minimum set of peripherals to allow the user to experience the power of the processor and also offers access to many of the interfaces and allows for the use of add-on boards called capes, to add many different combinations of features. A user may also develop their own board or add their own circuitry.
Raspberry Pi (Model 3)
The Raspberry Pi is a series of small single-board computers (SBCs) developed in the United Kingdom by Raspberry Pi Ltd in association with Broadcom. The Raspberry Pi project originally leaned toward the promotion of teaching basic computer science in schools. The original model became more popular than anticipated, selling outside its target market for uses such as robotics. It is widely used in many areas, such as for weather monitoring, because of its low cost, modularity, and open design. It is typically used by computer and electronic hobbyists, due to its adoption of the HDMI and USB standards. The Raspberry Pi is currently on it's fifth major version. (2023)