Bluetooth Multimeter – Seeed Studio

“Bluetooth Multimeter is an intelligent peripheral of android phones, specially designed for engineers. Not only can it easily collect data such as voltage, current and resistance etc., this multimeter can also communicate with phones via bluetooth. Thus, the data gathered will be displayed on your phones.”

Bluetooth Multimeter – Seeed Studio

Totally open source, including hardware, software & Android API. Learn how to create a Platform to connect smartphones with the real life.

Bluetooth Multimeter - Seeed Studio

The Bluetooth Multimeter is based on Atmega328 – Arduino Pro. It measures the voltage and resistance and current input from the headphone jack, and then sent these data via the Bluetooth frame.

Android UI for Bluetooth DMM

This Bluetooth Multimeter is a portable multimeter, a device that gathers the voltage, resistance and current. and then sent these data to other device via Bluetooth, so, we could display the data through other devices, such as Android, PC and so on.

Zelscope Sound card oscilloscope

Zelscope is a Windows software that converts your PC into a dual-trace storage oscilloscope and spectrum analyzer. It uses your computer’s sound card as analog-to-digital converter, presenting a real-time waveform or spectrum of the signal – which can be music, speech, or output from an electronic circuit.

Zelscope Sound card oscilloscope

Zelscope features the interface of a traditional oscilloscope, with conventional gain, offset, timebase, and trigger controls. As a real-time spectrum analyzer, Zelscope can display the amplitude and phase components of the spectrum.

Zelscope Sound card oscilloscope

The typical input voltage should be about 1 volt AC at the line-in jack of the sound card, so a voltage divider or a buffer amplifier is highly recommended.

xoscope for Linux –  Similar Ptoject

Zelscope also allows for an easy measurement of short time intervals in mechanics experiments. Zelscope has proven useful in debugging music and sound processing software.

Silicon Chip Electronics Magazine

Hobby Electronics, Computing, Kits and Projects. Online version of Australia’s only electronics magazine, and is primarily directed to professionals, trades people and enthusiasts in the electronics, electrical, computer and related fields.

Silicon Chip Electronics Magazine

Projects to build do it yourself to save money, to learn new skills or simply for the fun of it!. Serviceman’s Notebook Actual cases, often unusual, from the bench of a full-time serviceman. Vintage Radio bringing back to life the discards of previous generations.

Silicon Chip Electronics Magazine

Each Silicon Chip design is carefully checked and tested and readers with the appropriate construction skills should be able to duplicate the design and have it work in the same or similar manner to the prototype.

OscilloScopes for the DIY Enthusiast

Here are some Hobby Scopes that might even be quite professional if you develop them further. They are virtual instruments. Making Scopes with tablets may be much more easy now.

The µSCOPE – A poorman’s oscilloscope
The oscilloscope is still one of the most important measurement tools of the electronic engineer. With the advent of the often very reasonably priced USB scopes, such an instrument is now within reach of every body.

OscilloScopes for the DIY Enthusiast

Digital oscilloscope – Build a simple Inexpensive digital oscilloscope. Single channel, about 100 MSPS. RS-232 based.

xoscope is a digital oscilloscope using input from a sound card orEsounD and/or a ProbeScope/osziFOX and will soon support Bitscopehardware. Includes 8 signal displays, variable time scale, math,memory, measurements, and file save/load.

xoscope – digital oscilloscope for Linux

MHZ100Q is a low cost FPGA-based high speed data acquisition system. Version 2 is a standalone board containing 2, 100MHz 8-bit A/D channels, preamp, 7th order elliptical antialiasing filters, and a Xilinx FPGA.

MHZ100Q – Open Source FPGA-based 100MHz A/D

A USB interface is implemented in the FPGA firmware. Power comes from the USB bus. Schematics, VHDL and Verilog source code, and signal capture and display software are available and being posted.

NYC Resistor – Hack Build Learn DIY Electronics

NYC Resistor is a hacker collective with a shared space located in downtown Brooklyn. The NYC Resistor Microcontroller Mailing List is a great place to meet others with the same interest…

NYC Resistor – Hack Build Learn DIY Electronics

“In this hands-on workshop, you’ll learn how to use a soldering iron safely and effectively, and get plenty of practice with both soldering and desoldering techniques. We’ll be soldering up some Game of Life kits – LED tiles that generate nifty animations.”

Intro to Soldering Workshop

NYC Resistor - Hack Build Learn DIY Electronics

Other Classes Examples –

“We’ll learn to program an Arduino and interact with the physical world! This class covers an introduction to Arduino, including how to use light sensors, LEDs, buzzers, and more.”

“Turn almost anything into a musical instrument with Teensy, an inexpensive Arduino-compatible microcontroller. The Teensy 3.2 has a bunch of touch sensors and analog and digital inputs,..”

NYC Resistor
87 3rd Avenue, 4th Floor, Brooklyn, NY 11217, United States

Electronic Solar Umbrella

There are places like your Backyard, outdoors, a village… where your Gadgets will stop working !!!

You will feel suffocated when your Smartphone or Tablet fails to respond to your caring strokes. Your Dupey is perishing due to Undernourishment. All you need is “Electronic Solar Umbrella” which was invented by me delabs on June 1st 2014.

Electronic Solar Umbrella

The Red Light is for Data Networking SmartUmbrellas using Advanced Multi-Threaded Infra Red Technology.

SUN – Smart Umbrella Networking

I just invented the SmartUmbrella – My Drone is Rushing to the Patent Office.

(Keep this confidential till my drone returns safely, the beagle boys are using Blimps with Large Magnets to capture Drones.)

Bill O’Donnell – Tech Gizmo Builder

These are high tech jigs, fixtures and instrumentation/automation gizmos that bill built. Electrical gizmo builder for the UNLV Physics Dept.

Bill O’Donnell – Tech Gizmo Builder

These projects are advanced and not for a beginner student or newbie hobbyists. These pages are knowledgable and will help students and DIY enthusiasts understand more about Lasers, Precision Temperature Control and stepper motors among other things.

Bill Tech Gizmos

Auto Fill Circuit for Laser Cooling Loop – Ethernet Data Logging

Here is an automation solution with a ethernet usage. The code and diagrams are also there. This is something that covers many aspects of engineering in one project. Try such things out to learn, only after you have mastered the basics.

“The Ethernet connection is based on an XPORT form Lantronics. Basically it lets you use a serial port to send things over Ethernet. A PIC microcontroller with an A/D converter digitizes the pressure, the pressure set point, the high and low pressure alarm points and the supply voltage (since everything is ratio-metric). “