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Comparison Of 802.15.4 Radio Modules
An 802.15.4 radio module is a small device used to communicate wirelessly with other devices according to the IEEE 802.15.4 protocol. This table lists production ready-to-use certified modules only, not radio chips. A ready-to-use module is a complete system with a transceiver, and optionally an MCU and antenna on a printed circuit board. While most of the modules in this list are Zigbee, Thread, ISA100.11a, or WirelessHART modules, some don't contain enough flash memory to implement a Zigbee stack and instead run plain 802.15.4 IEEE 802.15.4 is a technical standard which defines the operation of a low-rate wireless personal area network (LR-WPAN). It specifies the physical layer and media access control for LR-WPANs, and is maintained by the IEEE 802.15 working group, ... protocol, sometimes with a lighter wireless protocol on top. Transceiver-only modules These modules only include the RF transceiver and do not include a microprocessor. As a result, the protocol ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
RF Module With Metric Ruler For Size Reference
RF is an abbreviation for radio frequency. Rf or RF may also mean: Arts and entertainment * ''Red Faction (series)'', a series of revolution video games * Rinforzando, , in music notation * '' RF Online'', an online RPG made by CCR Businesses * Aero K, IATA code (2020—present) * Florida West International Airways, IATA code (1984—2017) * Regions Financial Corporation, NYSE stock symbol Government and military * France (''République française'') * Russian Federation * Rhodesian Front, former political party in Rhodesia Biology and medicine * Rheumatic fever, an inflammatory disease * Release factors RF1, RF2, RF3, proteins * Reticular formation, in the brainstem * Rheumatoid factor, an antibody * Receptive field, the response characteristic of a neuron * Respiratory failure * Risk factor Other uses in science and technology * Representative fraction * Retardation factor in a chromatographic system * Radiative forcing, the change in energy flux in the atmosphere caused by ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Anaren
Anaren, Inc. provides high-frequency microwave microelectronics, components, and assemblies for wireless, aerospace, and defense electronics applications. The company is headquartered in and operates five manufacturing facilities, each of which is subsidiary of Anaren, Inc. These include Anaren Microwave, Syracuse, New York; Anaren Ceramics, Salem, New Hampshire; MS Kennedy, Syracuse, New York; Unicircuit, Littleton, Colorado; and Anaren Communications, Suzhou, China. History Anaren was founded by Hugh A. Hair and Carl W. Gerst in 1967. Both were RF engineers who left General Electric to focus on a new company that would develop several new RF technologies, including the circuit-etching technologies called stripline manufacturing. The company started with a few dozen employees and a small facility in Syracuse, New York and its first customers were many manufacturing firms in the U.S. defense and aerospace sector including Hughes, Litton Industries (now part of Northrop Grumman), ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
In-System Programming
In-system programming (ISP), or also called in-circuit serial programming (ICSP), is the ability of some programmable logic devices, microcontrollers, and other embedded devices to be programmed while installed in a complete system, rather than requiring the chip to be programmed prior to installing it into the system. It also allows firmware updates to be delivered to the on-chip memory of microcontrollers and related processors without requiring specialist programming circuitry on the circuit board, and simplifies design work. There is no standard for in-system programming protocols for programming microcontroller devices. Almost all manufacturers of microcontrollers support this feature, but all have implemented their own protocols, which often differ even for different devices from the same manufacturer. In general, modern protocols try to keep the number of pins used low, typically to 2 pins. Some ISP interfaces manage to achieve the same with just a single pin, others us ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Panasonic
formerly between 1935 and 2008 and the first incarnation of between 2008 and 2022, is a major Japanese multinational corporation, multinational Conglomerate (company), conglomerate corporation, headquartered in Kadoma, Osaka, Kadoma, Osaka Prefecture, Osaka. It was founded by Kōnosuke Matsushita in 1918 as a lightbulb socket manufacturer. In addition to consumer electronics, of which it was the world's largest maker in the late 20th century, Panasonic offers a wide range of products and services, including Rechargeable battery, rechargeable batteries, automotive and avionic systems, industrial systems, as well as home renovation and construction. Panasonic has a primary listing on the Tokyo Stock Exchange and is a constituent of the Nikkei 225 and TOPIX, TOPIX 100 indices. It has a secondary listing on the Nagoya Stock Exchange. Corporate name From 1935 to October 1, 2008, the company's corporate name was "Matsushita Electric Industrial Co." (MEI). On January 10, 2008, the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
MMCX Connector
Micro-miniature coaxial (MMCX) connectors are coaxial RF connectors similar to MCX but smaller. They conform to the European CECC 22000 specification. MMCX connectors are rated to 500 mating cycles. The connectors have a lock-snap mechanism allowing 360-degree rotation and usually have a 50 Ω impedance. They offer broadband capability from DC to 6 GHz. MMCX connectors are seen on Wi-Fi PCMCIA cards as antenna connectors or as connectors for external GPS antennas on small devices like PDAs or GPS receivers, or on mobile phones to connect external GSM-Antennas. They are also used by various brands of in-ear monitors to connect the cable to the individual earpieces. This allows for the cables to be replaced or swapped. They were developed in the 1990s. MMCX is also used in some video transmitters for First-Person View (FPV) radio control piloting. This makes swapping antennas and repairing easier than the U.FL connectors. See also * MCX connector - Micro coaxial * T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
GPIO
A general-purpose input/output (GPIO) is an uncommitted digital signal pin on an integrated circuit or electronic circuit (e.g. MCUs/ MPUs ) board which may be used as an input or output, or both, and is controllable by software. GPIOs have no predefined purpose and are unused by default. If used, the purpose and behavior of a GPIO is defined and implemented by the designer of higher assembly-level circuitry: the circuit board designer in the case of integrated circuit GPIOs, or system integrator in the case of board-level GPIOs. Integrated circuit GPIOs Integrated circuit (IC) GPIOs are implemented in a variety of ways. Some ICs provide GPIOs as a primary function whereas others include GPIOs as a convenient "accessory" to some other primary function. Examples of the former include the Intel 8255, which interfaces 24 GPIOs to a parallel communication bus, and various GPIO ''expander'' ICs, which interface GPIOs to serial communication buses such as I²C and SMBus. An example o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SMA Connector
SMA (''SubMiniature version A'') connectors are semi-precision coaxial RF connectors developed in the 1960s as a minimal connector interface for coaxial cable with a screw-type coupling mechanism. The connector has a 50 Ω impedance. SMA was originally designed for use from DC (0 Hz) to 12 GHz, however this has been extended over time and variants are available to 18 GHz and 26.5 GHz. There are also mechanically compatible connectors such as the K-connector which operate up to 40 GHz. The SMA connector is most commonly used in microwave systems, hand-held radio and mobile telephone antennas and, more recently, with WiFi antenna systems and USB software-defined radio dongles. It is also commonly used in radio astronomy, particularly at higher frequencies (5 GHz+). Connector design The interface dimensions for SMA connectors are listed in MIL-STD-348. The SMA connector employs a inch diameter, 36-thread-per-inch threaded barrel. The mal ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Freescale 68HC08
The 68HC08 (HC08 in short) is a broad family of 8-bit microcontrollers originally from Motorola Semiconductor, later from Freescale Semiconductor. HC08's are fully code-compatible with their predecessors, the Motorola 68HC05. Like all Motorola processors that share lineage from the 6800, they use the von Neumann architecture as well as memory-mapped I/O. This family has five CPU registers that are not part of the memory. One 8-bit accumulator A, a 16-bit index register H:X, a 16-bit stack pointer SP, a 16-bit program counter PC, and an 8-bit condition code register CCR. Some instructions refer to the different bytes in the H:X index register independently. Among the HC08's there are dozens of processor families, each targeted to different embedded applications. Features and capabilities vary widely, from 8 to 64-pin processors, from LIN connectivity to USB Universal Serial Bus (USB) is an industry standard that establishes specifications for cables, connectors and p ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Digi International
Digi International is an American Industrial Internet of Things (IIoT) technology company headquartered in Hopkins, Minnesota. The company was founded in 1985 and went public as Digi International in 1989. The company initially offered intelligent ISA/ PCI boards (the 'DigiBoard') with multiple asynchronous serial interfaces for PCs. Multi-port serial boards are still sold, but the company focuses on embedded and external network (wired and wireless) communications as well as scalable USB products. The company also sells radio modems and embedded modules based on LTE ( 4G) communications platforms. Acquisition history Digi International has acquired a number of companies since it went public. *2021 Digi acquired Ventus Holdings. *2021 Digi acquired Ctek, a company specializing in remote monitoring and industrial controls. *2021 Digi acquired Haxiot. *2019 Digi acquired Opengear. *2018 Digi acquired Accelerated Concepts, a provider of secure, enterprise-grade, cellular (LT ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
I²S
I²S (Inter-IC Sound, pronounced "eye-squared-ess"), is an electrical serial bus interface standard used for connecting digital audio devices together. It is used to communicate PCM audio data between integrated circuits in an electronic device. The I²S bus separates clock and serial data signals, resulting in simpler receivers than those required for asynchronous communications systems that need to recover the clock from the data stream. Alternatively I²S is spelled I2S (pronounced eye-two-ess) or IIS (pronounced eye-eye-ess). Despite the similar name, I²S is unrelated to the bidirectional I²C (IIC) bus. History This standard was introduced in 1986 by Philips Semiconductor (now NXP Semiconductors) and was first revised June 5, 1996. The standard was last revised on February 17, 2022 and updated terms ''master'' and ''slave'' to ''controller'' and ''target''. Details The I²S protocol outlines one specific type of PCM digital audio communication with defined paramete ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
ARM Cortex-M
The ARM Cortex-M is a group of 32-bit RISC ARM processor cores licensed by Arm Holdings. These cores are optimized for low-cost and energy-efficient integrated circuits, which have been embedded in tens of billions of consumer devices. Though they are most often the main component of microcontroller chips, sometimes they are embedded inside other types of chips too. The Cortex-M family consists of Cortex-M0, Cortex-M0+, Cortex-M1, Cortex-M3, Cortex-M4, Cortex-M7, Cortex-M23, Cortex-M33, Cortex-M35P, Cortex-M55. The Cortex-M4 / M7 / M33 / M35P / M55 cores have an FPU silicon option, and when included in the silicon these cores are sometimes known as "Cortex-Mx with FPU" or "Cortex-MxF", where 'x' is the core variant. Overview The ARM Cortex-M family are ARM microprocessor cores which are designed for use in microcontrollers, ASICs, ASSPs, FPGAs, and SoCs. Cortex-M cores are commonly used as dedicated microcontroller chips, but also are "hidden" inside of SoC chip ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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