LAN DS18B20 WEB Temperature Monitor 1 meter Cable
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Receive UDP packet datagrams in PHP ( UDP server socket)

  PHP file: <?php $socket = socket_create(AF_INET, SOCK_DGRAM, SOL_UDP);if (!$socket) { die(“socket_create failed.n”); }   //Set socket options.socket_set_nonblock($socket);socket_set_option($socket, SOL_SOCKET, SO_BROADCAST, 1);socket_set_option($socket, SOL_SOCKET, SO_REUSEADDR, 1); if (defined(‘SO_REUSEPORT’))socket_set_option($socket, SOL_SOCKET, SO_REUSEPORT, 1); //Bind to any address & port 12345.if(!socket_bind($socket, ‘0.0.0.0’, 12345))    die(“socket_bind failed.n”);   //Wait for data.$read = array($socket); $write = NULL; $except = NULL; while(socket_select($read, $write, . . .

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SDM120 Modbus 220/230V Single Phase Energy Meter, for Domoticz, ESP8266, Arduino

  SDM120 Modbus Single Phase  Multifunction Energy Meter Price: EUR 30.00 https://www.ebay.co.uk/itm/273500228608   • Class 1.0 Accuracy • 45A direct connect load • RS485 Port modbus RTU • 2 Pulse Output • 3 Mode measruements • 12 Electrical parameters • 17.5 mm width 1 modual • 35mm Din rail Mounted Specifications Voltage AC (Un) 230V . . .

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KMtronic LAN WEB 8 Channel Relay board