The “ESP32 DHT Server: Monitoring Temperature and Humidity” project uses an ESP32 microcontroller and a DHT11 sensor to track environmental data. For example, the ESP32 connects to a Wi-Fi network and hosts a simple web page. As a result, users can see real-time temperature and humidity readings from any device on the same network. In…
Need a big clock that is easy to read even on bright days? Why not build your own digital clock based on an ESP32. And on top update the time automatically over the internet (NTP time server). What do we learn? use NeoPixel library to drive a chain of WS2812 RGBW LEDs how to handle…
The ESP32-CAM is one of the cheapest solutions if you want to add video recording to your IoT project. In this tutorial, you will learn the following: how to program the ESP32-CAM how to do browser-based and RTSP video streaming how to use an FTDI adapter to program the ESP32-CAM how to use OTA to program the…
LoRa is a wireless communication known for its long range capability. But what if the distances between sensor nodes are farther than the range you can achieve with LoRa. That’s when you need a LoRa Mesh network. A mesh network is not a network in the typical star topology where every node is connected to…
I really love the tutorial written by JP how to use ESP32 Deep Sleep. For the beginners who are not familiar with ESP-IDF and prefer to work with ArduinoIDE (or PlatformIO), I want to take JP’s lesson over to Arduino framework in a practical example. In my other tutorial LoRa Gateway I showed you how…
Learn how to get more battery life out of your projects. Use your microcontroller’s deep sleep mode to lower power consumption!
In this new series of articles, we’ll show you how to level up from the Arduino. Learn how to use FreeRTOS to write more powerful code for microcontrollers!
Part #2 – The LoRa gateway In my other post I made an introduction to Long Range (LoRa) communication. Now let us put this into a practical application. And to make it more interesting we will not only collect data from several sensor nodes, but as well send them to an IoT cloud service. This…
Part #1 – The sensor nodes In my other post I made an introduction to Long Range (LoRa) communication. Now let us put this into a practical application. And to make it more interesting we will use battery powered sensor nodes that can be left at positions where no power outlet is available. This part…
Usually we use WiFi, Bluetooth or GSM to connect our sensor devices with the world of IoT. But what if neither of that is available (or not affordable like GSM)?
