A home to software testing, electronics circuits & projects, tips and tricks and digital diary.
A home to software testing, electronics circuits & projects, tips and tricks and digital diary.
Its been quite some time since JMeter 2.9 is available. There have been few notable changes in the new version of JMeter. JMeter can now handle different types of documents (PDF, MsOffice files, Apache OpenOffice’s files…) within different elements. What…
Force install apps to SD card without ROOT Samsung Galaxy Ace has only got 180 MBs of Internal memory. If you install a lot of apps, you are bound to run into low disk space issues. To force your new…
JMeter plugin is the very much usefull in load testing. Long time back I had posted an article for monitoring windows server using Nagios. Now you do not require Nagios any more. A JMeter plugin is available which can be used…
The Led torch with adjustable brightness circuit uses LM3914 as the basis of a 10 step variable brightness current-regulated white LED . This circuit has only four components in the control and regulation circuit: R1,R2, VR1 and LM3914. Part List 1.…
“Performance testing is defined as the technical investigation done to determine or validate the speed, scalability, and/or stability characteristics of the system under test.” Types of Performance testing Performance test Load test Stress test Spike test Capacity Test Soak/endurance test…
All mains powered LED circuits work with 240 volt AC current. Mains powered LED – Single LED The power diode in the first diagram is designed to discharge the 220n during one half of the cycle so that the capacitor…
Audio amplifier using LM386 is a power amplifier designed to be used in low voltage consumer applications. Typical applications are like portable AM/FM amplifier, TV sound systems. It requires minimum external parts and operate from wide range of voltage starting…
In this post you will find circuit on how we can light up white LED on 1.5 v supply. Heart of the circuit is the transformer winded on 2.5mm by 0.5 mm core using 0.095 mm wire. 2 White LED…
Audio AMPLIFIER 1 watt audio amplifier shown below is very simple and easy to make. You can use this in making pocket amplifier for your mp3 player. It can fit in small mactch box size box. Parts List for…
Alternate red and green flashing LED using 9 volt battery Part list R1,R2 – 100 Ohm R3,R4 – 105 K C1,C2 – 10 μF 25 Volt T1-T2 – BC 548 D1-D5 – Red LED D6-D10 – Green LED 9 Volt Battery