RELAY

 Concept of Relay




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ESP32-P4 Smart 86 Box

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  ESP32-P4 Smart 86 Box features 4-inch square touch display for Smart Home and IIoT applications Designed for Smart Home or industrial IoT (IIoT) applications, Waveshare’s ESP32-P4 Smart 86 Box is equipped with a 4-inch square touchscreen display, an ESP32-C6 module with WiFi 6 and Bluetooth connectivity, and a range of connectors. Two models are offered: the ESP32-P4-WIFI6-Touch-LCD-4B with a MIPI CSI camera connector and a 28-pin GPIO header, and the ESP32-P4-86-Panel-ETH-2RO with a bottom board that features an RS485 serial interface, two relays, a 10/100Mbps Ethernet RJ45 connector, and 6V-30V DC input. ESP32-P4 Smart 86 Box ESP32-P4-WIFI6-Touch-LCD-4B model ESP32-P4 Smart 86 Box specifications: Main module – ESP32-P4-Core Module Microcontroller – ESP32-P4NRW32 MCU Dual-core RISC-V microcontroller @ 400 MHz with AI instructions extension and single-precision FPU Single-RISC-V LP (Low-power) MCU core @ up to 40 MHz GPU – 2D Pixel Processing Accelerator (PPA) VPU – H.264 and JPE...
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  Network topology refers to the physical or logical layout of a computer network. There are several types of network topologies, each with its own advantages and disadvantages. Here are some common network topology types: Bus Topology: In a bus topology, all devices are connected to a single communication line (bus). Data travels along the bus, and each device receives the data intended for it. However, this topology can be susceptible to a single point of failure. Star Topology: In a star topology, all devices are connected to a central hub or switch. The central hub acts as a relay, allowing devices to communicate with each other through it. It provides better fault tolerance since the failure of a single connection typically doesn't disrupt the entire network. Ring Topology: In a ring topology, each device is connected to exactly two other devices, forming a circular loop. Data travels in one direction along the ring until it reaches its intended destination. The data transmiss...
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Surface-mount technology   ( SMT ), originally called   planar mounting ,   is a method in which the electrical components are mounted directly onto the surface of a   printed circuit board   (PCB). ]   An electrical component mounted in this manner is referred to as a   surface-mount device   ( SMD ). In industry, this approach has largely replaced the   through-hole technology   construction method of fitting components, in large part because SMT allows for increased manufacturing automation which reduces cost and improves quality.   It also allows for more components to fit on a given area of substrate. Both technologies can be used on the same board, with the through-hole technology often used for components not suitable for surface mounting such as large transformers and heat-sinked power semiconductors. Surface-mount components on a  USB flash drive 's circuit board. The small rectangular chips with numbers are resistors,...
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