include ESP8266mDNS.h, start the mDNS server and register the service,.The ESP8266 tool-chain for Arduino includes a compatible mDNS server. The client trying to connect to your program will use this information to resolve the Arduino’s IP address and open the connection. For mDNS, a service is a name, protocol and port number. Your Arduino program needs to advertise its services so they can be found by mDNS clients. Select the mDNS services that MegunoLink should search for. MegunoLink will search for devices advertising any service in the list. Enter the end-point of the service (see below). Click the New to add a service name, Edit to change an existing name or Delete to remove an entry from the list. You can use the Start and Stop buttons to start and stop the mDNS client.Ĭlick the Edit button to show the Manage Services window to setup the services you are interested in (you’ll need to stop the mDNS client first if it is running). Open the mDNS Browser by selecting mDNS Configuration from MegunoLink’s gear menu. In MegunoLink, you’ll select your connection by the type of service and the name of the device. Each device should have a unique name, so you can choose the one you want to connect to. The Arduino advertises the name of the port using a MDNS library, such as the ESP8266mDNS library for the ESP8266 WiFi module.Įach device can advertise many service end-points and many devices may advertise the same type of end-point. A service, is simply a named port that your Arduino program opens to communicate with the outside world. The mDNS client periodically looks for devices on your network which advertise the services you are interested in. MegunoLink contains a simple mDNS client (so it doesn’t require any external services such as Bonjour). mDNS won’t let you find devices any where on the Internet, but mDNS can help if your sensor and computer are on the same local network. It is a standard protocol widely implemented for local printer discovery, wireless speakers, network storage devices etc. MDNS, or multicast DNS, is a service that helps you find your wireless Arduino devices on the network without knowing their IP address. MegunoLink’s mDNS browser lets you see devices advertising services on your local network
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