asyncstream

Hi all, I need some help understanding how to use a standar B4J class in an ABMaterial project, basically I have a project where I have a written a class that opens a Serial Port and starts receiving data from a device, This all works perfect so far, until I navigate to a different page, the...

Hi, im using a ESP32 Bluetooth to send a number. i use bluetooth serial in esp32 arduino to send number. I can received this number in serial bluetooth terminal app in my phone. I need just receive and show this number in android phone. Time between send number is minimum 2 seconds but its...

Hello everyone. Maybe someone can help with advice. I am developing a chat. I want that when the application starts, a request is sent and received a JSON file with all messages in order to update all chats. But while this function is being executed, the interface stops responding to clicks. I...

I am working on a remote thermometer for my greenhouse using an ESP8266-01 and DHT11. Currently I am using AsyncStreams + B4XSerializator which is simple to work with and works well. Now I want to put the ESP8266 in deep sleep mode so save battery and only wake up every 5 minutes or so. But...

Hello, use B4A --> to send commands to Attiny how can i send textcommands like "r" or Data like "50" as ascii char ? i tried some with byteconverter and StringtoHex.... but nothing is successfull... Have anybody idea how i can send Textcommands ?... Thousend Thanks Heinz

Hi all, my problem is to write to a wifi socket connected to a led display. The Display accepts a 22 byte string, but some of the required chars are chr(177) to chr(186). When I assign the string to buffer the buffer of course gets negative values.. and the display will not generate any...

I used the B4X Serializator tutorial as the basis for an android app that communicates with my ESP-12E. For the most part it works great, however, I have noticed some strange issues: If I don't "disconnect" when pausing the activity (such as when exiting the app), then it seems to stay...

I have great need to send .MP4 files to my B4J server. The problem is that I can't find a solution to send large .MP4 files to my B4J server. Is there anyone who solved this problem? What I can understand is a way to use AsynkStream communications to handle such large files. The questions...