This is a Raspberry Pi NFC HAT based on PN532 operating in the 13.56MHz frequency range. It supports three communication interfaces: I2C, SPI, and UART. NFC (Near Field Communication) is a wireless technology allows contactless point-to-point data communication between devices within a short distance of 10 cm. Aug 13, 2020 · Wireless Module For Raspberry Pi LoRa Board LoRa Module SX1268 470M LoRa HAT Description: With SX1268, it is a extension board for Raspberry Pi LoRa, covers 470M frequency band. It allows data transmission up to 5km through serial port. For using LoRa spread spectrum modulation technology, the communication distance of the module is 5km.

Jul 27, 2020 · The Raspberry Pi and a desktop computer are connected via the USB-serial board. On the desktop side, the Termite serial application is used on a Win32 system to send and receive the serial data. The Termite automatically detects the USB-serial device when it’s connected to the desktop computer (laptop) as COM22. Apr 23, 2015 · LCDProc Tutorial for Raspberry Pi rdagger | April 23, 2015. LCDProc is an open-source system for displaying information on LCD displays. It has drivers for many different types of displays which can be interfaced via serial, USB, I 2 C, LPT and Raspberry Pi GPIO. There are built-in methods to place text, scroll titles, draw bars and display ...

I'd like to implement a library that allows communication between Arduino, raspberry pi, and another Python node. The communication protocol should be MQTT, the payload should use Protobuf. I already have the testbed setup. You will have access to my VPN through ssh and connect to the testbed and develop there.

Freeing up UART pins on Raspberry Pi GPIO. By default Raspberry Pi’s UART pins (GPIO 14 and 15) are configured as a serial console. It outputs all the kernel data during boot. We need to free up these pins for our use. For this launch terminal, First make a backup of the file containing kernel parameters cmdline.txt as cmdline_bp.txt A tutorial about how to connect Raspberry Pi and Arduino over GPIO and Serial Pins, using voltage divider, and/or logic level converter, with examples too! Because there is a voltage difference between the two device on these interface, a voltage divider or logic level converter would be required.

With millions of new users and several new models, the Raspberry Pi ecosystem continues to expand—along with a lot of new questions about the Pi’s capabilities. The second edition of … - Selection from Raspberry Pi Cookbook, 2nd Edition [Book]