
( Brand: Feather ), ( Model: AS-D2 ), ( Type: Safety Razor ), ( Country/region Of Manufacture: Japan )
The Feather AS D2 and Feather AS D2 Mini are versatile development boards designed for creating projects with wireless connectivity using the RadioRA2 wireless mesh networking protocol. These boards are part of the Feather lineup, known for their ease of use, compact size, and extensive compatibility with various sensors, actuators, and other peripherals. Let's explore their features and capabilities in detail.
**Design and dimensions:** The Feather AS D2 and Feather AS D2 Mini boards have a rectangular shape, measuring 2.0 inches by 0.9 inches (5.1 cm x 2.3 cm) and 1.7 inches by 0.9 inches (4.3 cm x 2.3 cm), respectively. Both boards are mounted on a 1.6-inch by 1.2-inch (4.1 cm x 3.0 cm) Pro Micro-compatible board designed with a USB connector for easy programming and powering the board. The Feather AS D2 Mini has a smaller form factor, achieving a size reduction by omitting a few pins.
**RadioRA2:** The primary feature of these boards is the built-in RadioRA2 wireless transceiver. RadioRA2 is a robust wireless mesh networking protocol, which provides reliable communication between devices, reduces the risk of signal interference, and extends the wireless range. As part of the Lutron HomeWorks QS system, these boards enable users to develop projects that integrate with this home automation platform and add advanced capabilities like scheduling, integration with other systems, and smartphone control through the Lutron App.
**Connectivity:** The Feather AS D2 and Feather AS D2 Mini boards offer two means of communication. The built-in RadioRA2 transceiver handles the wireless communications, allowing for seamless integration within a RadioRA2 network. Additionally, the board features a standard pinout header, which supports attachment of other communication modules, such as Wi-Fi, cellular, Bluetooth, or LoRa modules, ensuring the boards' flexibility in connecting to various networks.
**Power:** Both the Feather AS D2 and Feather AS D2 Mini have similar power management options, including a pin for either an external 3.3V or 5V voltage input, a drop-in LiPo battery connector, and an on-board bow-tie inductor for inductive charging a useful feature when powering the board with a wall adapter or battery. The built-in voltage regulator ensures stable voltage levels for the board and connected peripherals.
**Programming:** The Feather AS D2 and Feather AS D2 Mini are built on the ATSAMD21G18A microcontroller, an ARM Cortex-M0 based CPU, which can be programmed using the Arduino IDE, PlatformIO IDE, or other popular development tools. This wide array of programming options allows developers to choose their preferred workflow and tools, as well as tap into a vast library of pre-existing code snippets and projects.
**Accessories:** The boards come with some essential accessories, including a LiPo battery, a JST-XHP battery connector, a USB cable for programming, and a small heat sink to keep the board operating efficiently. Optionally, users can purchase grove shields and thru-hole breakout boards to expand the boards' functionality and simplify the wiring process.
In conclusion, the Feather AS D2 and Feather AS D2 Mini development boards offer a rich combination of RadioRA2 wireless connectivity and the flexibility of the Feather platform. With their compact size, compatibility with various communication methods, and ease of use, they provide the perfect foundation for a wide range of home automation and IoT projects.
FEather D2 AS-D2 and FEather D2 are two popular processors from AMD's Ryzen 3000 series. While they share some similarities, there are distinct differences between the two that can influence the buying decision. In this comparison, we will discuss their pros and cons, followed by a conclusion and recommendation.
FEather D2 AS-D2: Pros:1. Higher clock speeds and improved performance for multithreaded workloads due to its six cores and twelve threads.
2. Quicker memory support (Up to DDR4-3200).
3. Better integrated graphics performance with Radeon RX Vega 11 graphics.
4. Supports PCIe 4.0 for faster data transfer with compatible hardware.
Cons:1. Higher power consumption due to its higher clock speeds and more cores.
2. Slightly more expensive than the FEather D2.
3. Cooling may be a concern for those using stock coolers.
FEather D2: Pros:1. Lower power consumption due to its lower clock speeds and fewer cores.
2. More affordable price point.
3. Smaller form factor and lower power requirements are suitable for compact builds.
Cons:1. Slower memory support, up to DDR4-3000, limiting RAM performance.
2. Lower integrated graphics performance.
3. Does not support PCIe 4.0.
Conclusion:Both FEather D2 AS-D2 and FEather D2 have their strengths and weaknesses. FEather D2 AS-D2 offers increased performance and features like PCIe 4.0 and faster DDR4 memory. However, it comes with a higher price tag and higher power consumption. FEather D2, on the other hand, is more affordable, has lower power requirements, and may be more appropriate for lighter workloads or budget builds.
Recommendation:If you require a more powerful processor for multithreaded workloads, heavy gaming, or large data processing tasks, the FEather D2 AS-D2 would be the recommended choice. However, if you are on a tight budget or have minimal need for performance enhancements, the FEather D2 would be a viable option. Ultimately, your decision should be based on your specific use case, budget, and performance requirements.
This should not affect the durability of the razor, as it is made of stainless steel, and can not be seen when assembled. The razor is in very good condition.
Up for offer is a used as d2. The paper shipper comes with the razor, but it will not stay shut on its own, as one of the claps has torn off. The razor does have a small amount of plating wear on two of the treads and can be seen in picture 7.