| The ESP32 is the latest Espressif product. Like the ESP8266 it has Wi-Fi, but adds Bluetooth. Besides a flexible radio the ESP32 also has tw...
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| For little cost it is possible to add the GT-521F52 fingerprint scanner with a serial interface to a microcontroller, an Arduino, a Raspberr...
| Many people are interested in a more detailed view of their energy consumption than the dull rolling numbers on the traditional domestic wat...
| One of the most critical phases in making a PCB is transferring the design data to the board manufacturer without errors. Unfortunately, the...
| In the last episode, we configured the ESP32 to set up its own local Wi-Fi network. With a PC, smartphone or tablet, we are able to log into...
| I met the authors of this book during the 2016 edition of Elektor’s Fast Forward Award event at the electronica trade show Munich. There, M...
| The Australian company 4D Systems manufactures a range of easy-to-integrate intelligent display modules with and without touch capabilities....
| All Raspberry Pi users must think about putting it in a case. And there are a lot of them. The Pi Desktop presented here seems to fit into...
| PCB pooling is an economical way for producing single boards or small production runs for several clients in one go. However, to allow PCB d...
| In the last episode of this series we produced a small web server using the ESP32 DevKitC. On request from a web browser running on a PC or...