As the Internet of Things (IoT) continues to revolutionize the way we connect and interact with our devices, there are a number of network options on which to build smart solutions. The leading low power wide area networks (LPWANs) are LoRaWAN® and narrow band IoT (NB-IoT). Developed for long range communication between devices and the… Continue reading LoRa WAN & NB-IoT
Category: Robotics
Commutation in BLDC Motors
BLDC motors do not use brushes for commutation. Since the coils are static, there is no need of a mechanical commutator to energize the windings. Instead, the commutation is done electronically, usually via a microcontroller unit and semiconductor switches. Electronic commutation consists of a series of steps where current from an external drive circuitry is… Continue reading Commutation in BLDC Motors
Understanding the Functionality of a Commutator in Electric Motors
A commutator itself is a split rotary ring, typically made of copper, with each segment of the ring attached to each end of the armature coil that is used in some types of electric motors and electrical generators whose job is to periodically reverse the current direction between the rotor and the external circuit. The… Continue reading Understanding the Functionality of a Commutator in Electric Motors
Meshstatic
Introduction Meshtastic® is a project that enables you to use inexpensive LoRa radios as a long range off-grid communication platform in areas without existing or reliable communications infrastructure. This project is 100% community driven and open source! Features Long range (254km record by kboxlabs) No phone required for mesh communication Decentralized communication – no dedicated… Continue reading Meshstatic
LoRaWAN Demo
There are two methods for Raspberry Pico and Pico-LoRa-SX1262 to connect to the network via LoRaWAN: OTAA (Over-The-Air-Activation) and ABP (Activation By Personalization). Here we use OTAA, as shown below. Step 1: Please send the “Join-Request” message to the network to be added, and note that the adding process is always initiated by the end… Continue reading LoRaWAN Demo
Introduction to LoRaWAN
LoRaWAN is a low-power wide area network open protocol based on LoRa radio modulation technology. Aims to wirelessly connect battery-powered “things” to the Internet in a regional, national, or global network and targets key Internet of Things (IoT) requirements such as bi-directional communications, end-to-end security, mobility, and localized services. Node wireless connection to the Internet… Continue reading Introduction to LoRaWAN
Introduction LoRA
LoRa (short for long range) is a spread spectrum modulation technique derived from chirp spread spectrum (CSS) technology. Semtech’s LoRa is a long range, low power wireless platform that has become the de facto wireless platform of Internet of Things (IoT). LoRa devices and networks such as the LoRaWAN® enable smart IoT applications that solve… Continue reading Introduction LoRA
Raspberry Pi Pico: A Comprehensive Introduction and Overview
1. Introduction: The Raspberry Pi Pico is a microcontroller board developed by the Raspberry Pi Foundation. It marks the foundation’s first foray into microcontroller-based development and offers an affordable and versatile platform for a wide range of embedded projects. 2. Features: RP2040 Microcontroller: The Raspberry Pi Pico is powered by the RP2040 microcontroller, which is… Continue reading Raspberry Pi Pico: A Comprehensive Introduction and Overview
Tounge drive system
The Tongue Drive System (TDS) is an innovative assistive technology designed to help individuals with severe disabilities to control various devices using their tongue movements. Developed by researchers at the Georgia Institute of Technology, the TDS utilizes a small magnetic tracer placed on the user’s tongue, which detects the position and movements of the tongue… Continue reading Tounge drive system
FOG Screen Technology
FOG (Free-form Optical Gradient) screens, also known as fog projection screens, are innovative display technologies that utilize fog or mist as a medium for projecting images or videos. These screens create a thin, laminar layer of fog or mist that acts as a transparent display surface, allowing images or videos to be projected onto it.… Continue reading FOG Screen Technology