A simple add-on for mobile phones to enable SMS-like messaging in a group when outside cell coverage, or in disaster scenarios.
A tiny telegraph that can write any text messages that look like a telegrammes. This project made of oak plywood.
Make your own emergency LoRa mesh chat radio with the new TTGO LoRa development board.
Connect the project to your laptop or phone and then chat between the devices without internet or SMS using just LoRa.
Calling my son from his room using 2 ESP8266 modules, instead of shouting.
Make a terminal chat client powered by the same technology as the Facebook Messenger mobile app and display your messages on your Arduino!
Tutorial on LoRa RFM95 or RFM98 from HopeRF. Comparison to Ra-02 from Ai-Thinker & Reyax RYLR896.
An attendance system using Arduino, MFRC522, and GSM module with a data management GUI created on C#.
Wouldn’t it be awesome to have a personal chatbot that will send you cool stuff throughout the day?
This guide provides step-by-step instructions for controlling your MATRIX Creator with a discord bot.
No peer-to-peer messaging project should be without security. Testing with a "sandbox" cert prepares code for subsequent stricter controls.
Super Secret Messaging with PocketCHIP!
The system includes a ReSpeaker Core v2.0 and speaker. Visitor can talk with it and it will drop a message to the person to be visited.
This is to show how to get messages from a SiPy to your computer via SigFox and Azure IoT Hub.
In this tutorial, we'll be using the Wemos D1 mini (ESP8266 based development board) and a button shield to create a smart IoT button.
Build an awesome Christmas light show with the timing coordinated over the OpenThread mesh network!
Leaf nodes can speak over MQTT on Bluemix, this demo uses two phone as HW sensors.. Any no. of devices can be join in w. this pub/sub model
Temperature and humidity sensor DHT11 data displayed on UI and I2C LCD display as well as messaged to Azure IOT Hub.
This PCB is a single channel gateway of LoRa, You can use this PCB as a node as well.
Takes the difference between two temperature sensors and texts the results to your phone.
Using LM35 sensor and Bolt WiFi module, we can build a monitor that sends SMS/email whenever it detects an anomaly.
Depending upon the light intensity at that instant the lighting of the lighting system is adjusted using photoresistor [LDR].
Publish an Event from your Device through Wia and you will see the SMS message come through to your phone!
Publish an Event from your Device and you will see a message come through to your Slack channel!