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ATmega328 is commonly used in many projects and autonomous systems where a simple, low-powered, low-cost micro-controller is needed. Perhaps the most common implementation of this chip is on the popular Arduino development platform, namely the Arduino Uno, Arduino Pro Mini [4] and Arduino Nano models.
Arduino form factor compatible ARM Cortex-M3 Development Platform: 24-bit data acquisition system that incorporates dual high performance, multichannel sigma-delta (Σ-Δ) analog-to-digital converters (ADCs), a 32-bit ARM Cortex™-M3 processor, and flash/EEPROM memory on a single chip.
Clock Speed: 50 MHz; Compatible with Arduino IDE. Diavolino [78] Evil Mad Scientist Laboratories Arduino layout-compatible board, designed for use with a USB-TTL serial cable. DuinoBot v1.x [79] RobotGroup Argentina [80] ATmega32U4 16 MHz Arduino fully compatible board, with integrated power supply and controllers designed for robotics.
G – get sensor configuration; S – set sensor configuration; are used to find and configure sensor units utilizing the SSI-protocol. The group of commands: R – request sensor data; V – data response; D – data response with status field; are used to read sensor data infrequently. For data streaming purposes defined commands are:
These sensors, after being calibrated at the factory, are able to provide digital data concerning processor temperature information. The PECI bus , allowing access to this data from chipset components, is a proprietary single-wire interface with a variable data transfer speed (from 2 kbit/s to 2 Mbit/s).
CAN FD (Controller Area Network Flexible Data-Rate) is a data-communication protocol used for broadcasting sensor data and control information on 2 wire interconnections between different parts of electronic instrumentation and control system. This protocol is used in modern high performance vehicles.
Therefore, transferring data as a bulk would yield a better performance in terms of higher throughput. Sliding window flow control is a point to point protocol assuming that no other entity tries to communicate until the current data transfer is complete. The window maintained by the sender indicates which frames it can send.
Sensor node cost is similarly variable, ranging from a few to hundreds of dollars, depending on node sophistication. Size and cost constraints constrain resources such as energy, memory, computational speed and communications bandwidth. The topology of a WSN can vary from a simple star network to an advanced multi-hop wireless mesh network.