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26 Jun 2014

DS2000A

Saelig Company Inc. (www.saelig.com) has announced the availability of MSO functionality to their range of Rigol DS2000A and DS1000Z scopes.   The mixed-signal extension provides digital signal debug capabilities to the user, allowing simultaneous viewing of analog and digital signals for comprehensive signal analysis. Both models leverage Rigol’s Ultravision technology from the DS6000 series, offering superior performance and functionality in this class.

Designed to reduce test time in research, development and failure analysis applications, the MSO2000A and MSO1000Z series digital oscilloscopes facilitate detecting signal and device characteristics with comprehensive trigger functions, hardware-based real time waveform records, replay, search and analysis functions. The multi-lingual user interface allows easy configuration of the oscilloscopes in the local language.

Saelig – MSO functionality to Rigol DS2000A and DS1000Z scopes - [Link]

26 Jun 2014

004_PIC

This project is a solution to power up most of devices or projects requiring dual (+/-) adjustable power supply. The circuit is based on LM317 positive and LM337 negative voltage regulators. LM317 series of adjustable 3 terminal regulator is capable of supplying in excess of 1.5A over a 1.2V to 30V DC output range, due to TO3 package of IC and large heat sink the power supply can handle maximum load current.

Dual Adjustable Power Supply - [Link]

26 Jun 2014

nanite-pic1

Possibly the smallestest ATtiny85 based ‘duino derivative.

Recently, Olimex anncounced the Olimexino 85s, claimed to be the “World’s smallest Arduino ever“. Now, that looks like a challenge. I guess it is about time to show off what has been on my desk since some time last year: The Nanite, pictured below.

The Nanite 85 - [Link]

26 Jun 2014

FL2MO8AHV72CMIW.MEDIUM

By ICStation:

Build temperature & humidity & smoke alarm system based on ICStation Mega 2560 compatible with Arduino( Cost is USD32.39 ONLY) .
The working voltage of this system is DC5V.It can measure the current temperature, humidity and smoke. It can display real-time data by the 1602 LCD and can realize the sound and light alarm when in the dangerous temperature and humidity. It is a simply and easily to operate monitoring alarm system about temperature humidity and smoke.

Build Temperature & Humidity & Smoke Detector Alarm System Based on Arduino - [Link]


25 Jun 2014

500

Arthur Guy made this mini LCD backpack for the smaller display screens:

This is an LCD backpack but it is for the smaller displays with the double row of pins rather than the single line.
I made this adapter as I was working with some small displays and needed a simple way of connecting it to a microcontroller. There are plenty of adapters for the standard single row displays but I couldn’t find any for the smaller dual row displays
This adapter works with existing libraries built around the PCF8754 shift register

[via]

Mini LCD Adapter Backpack - [Link]

25 Jun 2014

002_PIC

This timer project can be used to switch ON/OFF any device after a set time, this circuit can be used in lots of application like switched ON/OFF Radio, TV, Fan, Pump, kitchen timer, the circuit describe here its unique in its own.

Project has been designed around two CMOS IC CD4001 and CD4020. Two gates of CD4001 make the oscillator and rest has been configured as flip-flop, BC547 transistor is to drive the Relay. Circuit is pretty simple, has jumpers to set the required time duration, Preset is to set the 1Hz oscillator. SW1 is to start the timer, SW2 Power on/off project. Relay output switch contacts can handle 230V AC @ 5Amps

Long Duration Timer - [Link]

25 Jun 2014

The CMoy headphone amp is a popular headphone amplifier that is small enough to carry everyday and powerful enough to drive headphones at higher levels than normal.  Most headphones and most sources will get along ok, but there are players with weak output, and high end headphones typically give up efficiency for the best sound.

The CMoy amp was originally designed by Chu Moy, and at this point there are hundreds of variations with different components, layout, and features.  Sometimes, users simply swap op-amps for a different sound and performance.  This circuit uses op-amps to directly drive headphones, something they are not designed to do, also, some of the op-amps used are not even designed for audio applications!

Here is a simulation of ½ of a CMoy amp.  It outputs over 4V from a  0.4V source.  It provides decent audio fidelity from just a few small and inexpensive components.  In the last few years, CMoy style headphone amplifiers have been very popular with the DIY audio crowd to increase the audio output to some of the larger and higher impedance headphones available.

DIY audio enthusiasts typically stuff these components into an Altoids tin, other tins, or other small project boxes.  The CMoy style of amplifier is versatile enough to fit into many different form factors. Users also determine the container based on what features they choose to include with their circuit.  They might add features like bass boost, DC input, and rechargeable batteries.

CMoy Headphone Amp - [Link]

25 Jun 2014

003_Pic

The Project works as electronic toggle switch. The circuit is based on CMOS CD4013 Flip Flop IC, The circuit has two stable states, ON and OFF. Once it is ON, it remains ON till you press the switch again. A short button press of a tactile switch SW1 latches the circuit ON and another toggles it back OFF. Relay switch contacts can handle high AC Voltage as well as High DC current, this makes the project suitable for application like ON/OFF Fan, Light, TV, Pump, DC Motor, any electronic project required electronic toggle operations and few other devices work on AC voltage up to 250V AC or DC current up to 5Amps.

Electronic Toggle Switch - [Link]

25 Jun 2014

IMG_0720Connor @ narkidae.com

I recently stumbled across an interesting fact in the datasheet for the ATMEGA32u4, the microcontroller I am using for my Einstepper Project. I was surprised to find that Atmel had included a temperature sensor in the core of the device that you can read using the internal ADC. As it turns out, there are many megaAVR devices contain an internal temperature sensor. According to Atmel’s product finder, these devices are:

ATMEGA Core Temperature Sensor - [Link]

25 Jun 2014

PIDDYBOTTitle

Sean Hodgins @ idlehandsproject.com writes:

After I built the tiny balancing robot using an IR sensor for stabilization, there was a comment on the youtube video about how it would be a good thing for kids to build and learn about PID controls. I thought that was a great idea, the only problem was that that tiny robot was the simplest of balancing robots. It was just an on off switch for telling the motor which way to move. There was no actual PID implementation in that system. So that got me thinking about how it would have been really cool if in one of my classes where I was learning about control theory I had a robot that actually let you see the changes in a PID system in real time. I decided to take it upon myself to create such a robot.

PIDDYBOT – A Self Balancing Teaching Tool - [Link]



 
 
 

 

 

 

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