Untitled. Uber Home Automation w/ Arduino & Pi. A few years ago, I became a dog owner for the first time.
I didn't like leaving Cody in the kennel alone all day. I had a webcam on him, but I couldn't watch it all day long. What if he was in some kind of distress? What if there was a emergency at the house, like a fire? I wanted some way of getting an immediate email notification when he barks, or when something bad happens. Here's the basic idea. Here's how it's put together. This Instructable will be a tutorial for how to build a variety of long range wireless sensors, and how to integrate these sensors into a sophisticated open source home automation server. These elements are the focus of the design: Low Cost. The Elements of Computing Systems / Nisan & Schocken. Background Hardware engineers don't build chips in their bare hands.
They design chips in a Hardware Description Language and test the resulting HDL programs using hardware simulation software.
DS2482-100 Single-Channel 1-Wire Master. Guidelines for Reliable Long Line 1-Wire Networks. Abstract: The 1-Wire® protocol was originally designed to facilitate communication with nearby devices on a short connection. 1-Wire was also a way to add auxiliary memory on a single microprocessor port pin.
Methods were later developed to extend the 1-Wire protocol to network applications well beyond the size of a circuit board. This document discusses various aspects of 1-Wire networks and provides design guidelines for their reliable operation. Www.ti.com/lit/ds/symlink/p82b715. I2C - RS-485 adapter. Jaakko Ala-PaavolaSeptember 29th, 2001 Status: Not implemented Table of contents Introduction The motivation of this project is to extend the widely supported I2C bus for longer distances to apply as a home control network.
I2C specification [1] implements simple 2-wire data communication protocol suitable for communication between sensors and microcontrollers. OSH Park ~ Pricing and Specifications. There are currently three types of orders: The standard 2 layer order $5 per square inch, which includes three copies of your design.
For example, a 2 square inch board would cost $10 and you’d get three copies of your board. You can order as many copies as you want, as long as they’re in multiples of three. Orders go to the fab every business day, and have a turn time of about 12 calendar days. The standard 4 layer order. PCB Design - How To Create Circuit Boards. To create a PCB Design you need to draw holes, pads and wires for your circuit.
Then you send this drawing to a manufacturer or you etch it yourself. Sounds hard? Don’t worry, there are many free tools out there that will help you do this. Starting with schematics. Electro Tech Online. Power supplying a circuit ith just live line (Vcc) without neutral line (GND) Mains inline powertap with no neutral. - Page 2. What I found weird was in NZ the neutral and earth are tied together in the fuse box.!
Is that normal? I''ve seen this in a few houses in NZ so not dodgy wiring in my hours. Yes, it's called TN-C-S. One combined conductor in the supply, separate earth and neutral in the installation.Although sane countries leave doing this to the supplier. Transformerless power supply with only Live wire.
WS2812 5050 RGB LED with Integrated Driver Chip - 10 Pack ID: 1379 - $4.50. View topic - Eng201: Building a water level monitor, step by step. Water Level Monitor - Do It Yourself. The amount of water that's held in storage at my remote homestead is of critical interest to me since I'm well out of reach of the nearest public utility.
But I also have far more to do in a day than play nursemaid to a cistern. So, at the height of last year's dry season, when my water worries were at their worst, I put together a remote water level monitor for my tank. Based on a few common electronic components, my device has proven to be infallible over the last 14 months. And now, monitoring the level in my holding tank — which used to involve a wearying and time-wasting walk up the hill — is as easy as glancing at my living room wall. Water Conducts Don't be intimidated because a few electronic gizmos go into the construction of my device. The Sensor Tube Once you've located the points, drill a 3/16" hole at each spot . . . as well as an eleventh hole, positioned halfway between the bottom of the PVC and the first mark and 1/4 turn of the pipe to the left.
Perfboard Assembly The Meter.
RaspberryPI. Android. Arduino. Pcb methodes. Inverted Pendulum Balancer. Introduction The goal of this project was to build and implement an inverted pendulum balancer, in the vertical two dimensional plane, using Proportional-Integral-Derivative (PID) feedback control.
The inverted pendulum balancer is a radio controlled car modified by adding a plexiglass platform and an inverted pendulum with free rotating pivot. The electrical component of the balancer brings together computational hardware (Atmel Mega32 microcontroller), an input angle sensor (US Digital Optical Shaft Encoder), and an output motor driver (National Semiconductor LMD18200 H-Bridge) onto a single board whose sole purpose is to autonomously control the motion of the car in order to keep the pendulum from falling. High Level Design Our motivation originated from Feedback Control Systems (MAE478), a course that we are both currently enrolled in.
10A H-Bridge Motor Controller - Theory. The Theory When it comes to contructing an H-bridge for DC motor control, there are two main things you need to know.
First, you need to understand how the H-bridge itsself works. The next section shows you where the name comes from and how it works. The second thing you need to understand is the different types of power transistors available and when to use what type. H-Bridge Motor Controller Theory The two pictures seen above shows you the 2 possible modes of operation.
Reverse_polarity.pdf (application/pdf Object)