wifi

This library is the result of my first approach with Zebra printers. I started by connecting via LAN (or Wi-Fi) ZPL language. I plan to connect via BLE and perhaps also via USB. Have a good time. For ESC/POS Printer see here The Demo version does not print images, barcodes, raw commands NB...

With it clear that an Arduino would not support my project and the recommendation that I should upgrade to a RPI covered in the thread rMQTT HostName with query parameters and despite my previous less than satisfactory experience with RPi projects, I'm pleasantly surprised with progress, however...

Moved to the B4R Questions

I have this problem. Device connected in wifi to an esp module, obviously without internet connection I need to retrieve data from an ftp server using mobile data connection, but seems the device only use the wifi with no success, ignoring the mobile data channel Any suggestion? wifi...

With one or more wifi routers, is it possible to have an accurate position of the smartphone within a room? Suppose we are inside a rectangular-sized warehouse with no shelves or other type of obstacle to radio waves Using wifi access points, one or more than one, is it possible to have the...

Hi All. I'm working on connection between ESP8266 and my B4A app. For a proper connection in perent of phone mobile data I should use PreferWifiRouting function that Erel presented here : Erel: If you are using Android 5+ then you can try this solution Sub Activity_Create(FirstTime As...

Hello, I'm trying to check the internet connection in real time but I haven't figured out how to do it. I've searched the forum, looked at some posts but they were all for b4a. I also tried some of them but they didn't work. Any help is appreciated.

Hello : I am trying to make tow esp32 communicate with each other throught network protocols. each esp32 connected to same router but when i ping from router to esp32 its show me delay and unstable latency when i search for this problem i see that i can fix it by disabling power save in wifi...

B4A - coder needed- Have an urgent job to do- Google maps GPS- WiFi- Bluetooth coding. Anyone interested pls contact me with your fees and ability-outline to work on this project on : robioptic@yahoo.com. :) Thanks Rob -o-o-

Not exactly a tutorial or Android-only, but a hint to the community for those who like playing with home automation stuff, and possibly for others as well. I happened across this very nice device (IMHO): https://www.tindie.com/products/nicethings/hugo-esp8266-4-button-wifi-remote/ and couldn't...

My hospital finger scan not enough for convenient, I'd like to make solution for sign in/out to work daily. To make some app that scan wifi ssid and get mac address at check in area and take selfie photo to sign in/out. I want some library for my android app. 1) Scan wifi and get ssid with...

How can i check if the Wifi and Mobile Data are enabled (not connected). And what is the event that triggers when one of those two change

Looking for advice, I`ve been trying an app using MQTT over wifi. I have a strong wifi signal all the way out at 600+m (clear line of sight), but I`m losing connection to the MQTT Broker at about 150m? I`m sending about 10KB on data at a time, and the Broker is responding back with about 2KB of...

Hi. I was excited when I found an Arduino board featuring WiFi without external shells. I used the ESP8266 before, and worked, but I (erroneously) supposed that this one would be easier. I have included the libraries needed for using the WiFi (SPI.h and WiFiNINA.h), but the B4R says that cannot...

I searched the forum and found many examples on checking if the device is connected to internet. In my case, I need to check if WiFi is connected but it could be to a hotspot or printer and so there may not be internet connectivity. What is the proper way to do this?

I found this thread but I cannot figure out how to use the information. https://medium.com/@Chandrachudh/connecting-to-preferred-wifi-without-leaving-the-app-in-ios-11-11f04d4f5bd0...

Hi, I want to display nmea navigation data on an android tablet. The data is transmitted wifi by an AIT3000 AIS and is received by an ipad running InavX. The ipad lives in the cabin of the boat and it's very useful to have a repeater by the wheel, and I want to use an android tablet. Because...

I have a project with ESP8266 as a Access Point with Wifi connection. It has no internet connectivity. Most mobile phones work good. I have problems with never Sony mobiles (Android 8.1 and 9.0). They connect to the ESP8226, detect there is no internet connectivity and disconnect. I have found...

Hi, All Who tried to use an Android device as the server that has been powered up during several months, or maybe year ? How is the battery state if such usage ? I think, now embedded control systems can be build basing on an Android device (also as server) + wired Ethernet LAN hosts of...

Hi to all...i need to scan the all wifi around me at the moment and know the ssid. I test the MLwifi library: https://www.b4x.com/android/help/mlwifi.html but the wifi_ScanDone not triggered...why? it necessary or possible to set a time limit to scan? this is my code...thank you Sub...