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This code uses JavaObject to go over the device network interfaces and find the first UDP broadcast address. This address can be used to send a UDP packet to all devices listening to a specific port. 'Returns the UDP broadcast address. 'Returns an empty string if not available. Sub GetBroadcastAddress As String Dim niIterator As JavaObject niIterator = niIterator.InitializeStatic... Each ia As JavaObject In addresses Dim broadcast As Object = ia.RunMethod("getBroadcast...

My app uses UDP broadcast to find another device. It works good but i found a crash wich i could... again -> Crash I reduced the app to the minimum and found that UDPSocket1.SendBroadcast(Packet... Private xui As XUI Private BroadcastTimer As Timer Dim UDPSocket1 As UDPSocket Dim... Root.LoadLayout("MainPage") BroadcastTimer.Initialize("broadcast",1000...
link: SOLVED: i found this in the "Similar Threads" https://www.b4x.com/android/forum/threads/udpsocket-silent-crash-of-app-after-using-iphone-standby-button.85565/...

UDP sent via broadcast, the app can send broadcast but not receive. Android 6 do not receive...) End If End Sub 'Returns the UDP broadcast address. 'Returns an empty string if not...
link: You should post feature requests in the wishlist forum....
link: In the future, Would it be possible to add these functions to the same tooltip that the udp socket...
link: You can release it if it is not needed anymore. In the case of B4A-Bridge it is not released until t...

mode on my Nexus 7 SE. ? https://www.b4x.com/android/forum/threads/udp-broadcast-address.75694/ Another question, on B4J and on B4A Debug mode it return 192.168.178.255, but broadcast IP Address...
link: Check this example: MQTT Chat with Auto Discovery...
link: Ok, that worked, many thanks Erel ;), and for my other question you think it is right or I'm wro...
link: It needs the android.permission.INTERNET permission. It will be added if you add a UdpSocket object...

(200ms) UDP 9 01/sec (1000ms) The stream is sent to a broadcast address (255.255.255.255) on port... capture these broadcasts over UDP to use the data later on a webpage (filtered)... I want use...
link: Thank you very much... Now i need to transform the data from a packet which will arrive into a "...
link: Yes. Note that it is better to use CRLF than chr(13) & chr(10)...
link: Just create a socket that listens to the correct port and it will work. So my code above should work...

acting as a hotspot. The issue is that I cannot broadcast UDP packet to the local network (the PC never sees anything neither a broadcast packet (255.255.255.255) nor a regular packet sent by the android to the client adress) I can broadcast to the Android from the PC client, both with a broadcast... broadcasting UDP packets... This solution is technically interesting but suppose that you have an INTEL wifi...Hi, I have recently writen a very simple VB.Net program to link an android to a PC via UDP...

hi. i use udp in b4a,b4j,b4r and it works fine when set client ip. i can send data to 192.168.1.255 from esp32 and all client windows and android can get all data. but my esp32 not get broadcast data just could get data when i send data to esp32 ip.(192.168.1.2) i think my modem access point limit esp32 because when change access point it works fine. any idea?...

My LAN broadcast address is 255.255.255.255. I don't know much about UDP or broadcast. I am... can I essentially broadcast the above to all addresses on my network using a UDP broadcast? Or am I not...
link: Yeah, I have that reflection multicast code in my app as well. Just isn't working. Oh well....
link: You can try this code if you want to listen to multicast UDP packets: http://www.b4x.com/forum...
link: to do it... The satellite receivers send out SSDP packets over UDP/port 1900 to the multicast...

Hi All, It's only marginally better on another device. I'm receiving maybe 30% of the broadcast transmission. Where I receive 99% if I pole the ESP32 for an immediate reply. As much...
link: Hi Erel, I am yes, other functions run as expected. I'll have access to the other devices tomo...
link: You are acquiring a partial wake lock, right?...
link: suspend or the user suspends the phone receiving broadcast UDP Packets stops. Having said that I'm...

It's probably due to the broadcast address (for example 192.168.0.255). I thought that it was a bug, but it seems to be the implementation of the UDP stack on Android that is different than...
link: UDP broadcasting is unreliable by definition. In debug mode the IDE communicates rapidly...
link: When it does not work: WHICH ERROR do you get? Check the Log (maybe the unfiltered log)...
link: ) that broadcasts UDP messages on the x.x.x.255 adresse. The one client is made with B4J v5.51 using jNetwork v1...