Dec 26, 2011 · Is it possible to hook up multiple (in my case 2) Arduinos (with ethernet shield of course) onto the same network router (in my case is a 4 port 10/100 hub)? I assume that you …

Mar 30, 2015 · I was wondering how I can get 4 Arduinos in total to communicate with each-other through a wired connection. The goal is to have the master Arduino send a number 0-100 to …

Mar 12, 2020 · I need to connect multiple Arduinos with each other (up-to 10). Each Arduino has some sensors (consider all sensors works well that uses interrupt and digital pins) connected …

Aug 3, 2012 · I2C is an addressed bus, so if you assign a different I2C address to each of the slaves you'll need only two wires to send the data. If needed you can ask data back as well. …

Dec 4, 2019 · You can have a server in the same room, in your company building or use the cloud. Sending a MQTT message is very simple. I used the ArduinoMqttClient Library for …

I think you should start with using Wifi modules and you use an esp-01 too instead of NodeMCU. Once you are familiar with esp-01's, you will find them as good as NodeMCU. Esp-01's only …

Aug 1, 2014 · Either one can use a Arduino with multiple hardware serial ports. This could be an Leonardo (use Serial1 instead of Serial). Or one can use the software serial library (the …

Jan 27, 2024 · I have two Arduino MKR WiFi 1010 boards. And all I want to do is send a 'Hello world' from one Arduino to the other, with both of them connected to another WiFi router (i.e. …

Jul 24, 2011 · I found the issue. Like I was stating, it was a duplicate name in the network. I had to dig deep to find it in the .cpp files for Ethernet, DHCP and CIAO. If anyone wants to use …

Oct 15, 2020 · I would specifically like to explore the option to have several arduinos connected to each other in a master/slave configuration. Where can I learn more about my option to build …