wifi

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...

Hi all, In B4A, it's possible to use the Simple Wifi library here – https://www.b4x.com/android/forum/threads/simple-wifi-library-updated-v-3-07-09-05-2018.76233/ (which is based on the MLwifi library) to get all kinds of information about the Wifi connection, which I can't find in B4i. I've...

This is a simple library that allows you to control the 15$ Xiaomi´s YeeLight WiFi RGB LED bulbs (real alternative to Phillips Hue) through your LAN. So far only tested with the RGB version (v1) but maybe it works also with the white bulb and strips. You need to enable “Lan Control” in the...

Hi, I would like to turn on/off the internal wifi router of an Android phone using B4A code. Is that possible? And if so, can you assist with some sample B4A code? Thanks Andrea

Hi all, I'm working on a B4A project that monitors and shows the current Wi-Fi signal level. I need to capture WifiManager.RSSI_CHANGED_ACTION. I took a look at Phone Library, but it doesn't capture that event. PhoneEvents has only the event ConnectivityChanged, which is triggered only on...

I am developing a widget that I want to sell commercially. Doesn't do much really, a few sensors sending information every 250mS or so. This means comms to IOS and Android phones without a local router connection ( in the wild) The problem is that depending on the model of the users Android...

Hi, I have a system with 1 smartphone and 2 ESP8266 devices (see figure attached). I do not have router. Is It possible to implement a wifi network between these 3 devices? May be a Direct WiFi (or what else)? Each device has to talk with the other 2 devices. Is It possible without a router? If...

This may be of interest to someone. I am using a Wemos D1 R2 in AP mode to serve a webpage to a client. The Wemos creates a server called "Wemos_Server" using the IP 192.168.4.1. When the browser opens this IP, a page is generated with three button: Start, Stop and Reverse. This controls a...

Hi all, I have an app that collects data on a tablet - no phone. It will be used mainly without Wifi access except for short periods when back at base. I would ideally like to transmit the data to a server at that time. I've tried to create emails but they go nowhere when not in Wifi...

Hi, I have an esp 8266 (Wemos mini) and I'm connect on wifi with wifi.connect2(ssid,pass). Sometimes, the board can't connect to the wifi and my sub stop and wait the response. But on my DHCP Server, I see the board and the server send a ip address. 2 questions : - Why the board wait even the...

hi, I need to detect id the user's smartphone is connected to the wifi, and if it not I need to turn the WIFI on. someone knows how to do that? thanks.