Categoria: GNU/Linux

ESP8266 and Arduino using LoRa and AES encryption

Here there are the raw codes to get an Arduino and an ESP8266 connected at SX1276. They are able to do LoRa bidirectional communication between them. It has been developed a PyQt program to change frequency dynamically and be able to check CRC and AES features in real time: PyQt code, examples and libraries for Arduino and… Continueu llegint ESP8266 and Arduino using LoRa and AES encryption

Programming STM32 using Arduino IDE on Debian Jessie

BOM ST-LINK V2 programmer stm32f103c8 learning board evaluation kit STM32F103C8T6 ARM STM32 Minimum System Development Board Module  Discovering ST-LINK V2 on Debian Jessie I have followed these steps and I have changed file /etc/udev/rules.d/49-stlinkv2.rules because Arduino IDE doesn’t detect /dev/stlinkv2_4 but it is able to detect /dev/ttyACM4 Arduino IDE There is a good explanation at Roger… Continueu llegint Programming STM32 using Arduino IDE on Debian Jessie

Arduino library for SX1276 using LoRA and PyQt

This PyQt code sends to Arduino payload binary information prepended by two bytes. 1st byte is function mode and 2nd byte is payload length. This code is able to receive binary information, to add CRC at the end or request a CRC calculation from Arduino. It is attached an example inside loraIno library for Arduino. Hardware is based on… Continueu llegint Arduino library for SX1276 using LoRA and PyQt

How to deal with binary data between Python and Arduino

This PyQt code sends to Arduino payload binary information prepended by two bytes. 1st byte is function mode and 2nd byte is payload length. This code is able to receive binary information, to add CRC at the end or request a CRC calculation from Arduino. How to run in Linux (it has been tested on Debian… Continueu llegint How to deal with binary data between Python and Arduino

SPI – Sample of master and slave using two Arduino

Sample of SPI communication using two Arduino on S4A Programming Learning Board : Arduino’s SPI master code (mirror) Arduino’s SPI slave code (mirror) How it works: When at master board is pressed button attached at pin 2 (zero level), it is immediately received by slave and lits led at pin 3 on. Afterwards, master is reading slave and updates… Continueu llegint SPI – Sample of master and slave using two Arduino

Modbus RTU on RS485 using Arduino and PyQt

Bill of materials: Arduino Nano S4A Programming Learning Board (pdf) USB to RS485 Converter RS485 Converter Module Board For Arduino Arduino source code (version for RS485 module) Program source code in pyQt (Python + Qt) Connections: Arduino         S4A PLB (P1)      RS485 module   GND              … Continueu llegint Modbus RTU on RS485 using Arduino and PyQt

Modbus RTU using Python and Qt

Bill of materials: WP8028ADAM 8DI/8DO Modbus device Step Up Boost Power Supply (5 volts input / 9-30 volts output) USB to RS485 Converter Source code: wp8028adamPyQt_01.tar.gz

Sistemes encastats d’escala petita

Presentació de Sistemes encastats d’escala petita al Col·legi d’Enginyers Industrials de Catalunya en el curs Sistemes embedded. Els sistemes ciberfísics, pilar de la quarta revolució industrial Codis dels exemples pràctics Especificacions de l’ESP8266 Llista d’ordres AT de l’ESP8266