communication

arduino sensor pic

ARDUINO VS RASPBERRY PI: A MAKER’S GUIDE TO ENVIRONMENTAL SENSORS

Since joining the North Temperate Lakes (NTL) LTER site in 2014, I’ve witnessed a growing fascination among many individuals regarding the prospect of creating their own environmental sensors using Arduino or Raspberry Pi as the central computing unit. These devices are notably affordable, typically ranging from $20 to $30, and are much more user-friendly for […]

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Speathe

Speaking Through Breathing: An intelligent communication system for the paralyzed.   Things used in this project Hardware components Software apps and online services Python react-native Story Speathe: An innovative and evolving communication method for the paralyzed who are gone speechless after paralysis. Even if there are methods for the paralyzed Speathe lends a helping hand

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Raspberry Pi – homemade level converter for serial communication rs232 3.3 volts to 5 volts TTL for AVR microcontroller

Raspberry Pi – homemade level converter for serial communication rs232 3.3 volts to 5 volts TTL for AVR microcontroller

I found that the Raspberry Pi serial interface rs232, described in a older post by myself, was too bulky. Pi and AVR should be connected through a less amount of wires. So I’ve searched the best hints to solder a cheap and uncomplicated level converter, that can directly be connected between the GPIO of the

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Raspberry Pi Serial Communication What Why and a Touch of How

Raspberry Pi Serial Communication: What, Why, and a Touch of How

I started exploring how to get a LCD display operational with a Raspberry Pi (RPi).  I checked out two hardware configurations: the bare bone LCD 16×2 display driven by the HD44780 chip set, which takes 6 wires to operate,  and another configuration that uses a Adafruit shield that requires only 2 wires.  It quickly became clear to me that I knew

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