Simple High Pass Filter
Part List IC1 – LM741 R1 – 3k R2,R3 – 90K R4 – 390 K R5 – 680 K C1,C2,C3 – 0.0047 uf Power Supply – 12v Dual Supply
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.
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How to install NOBS for Raspberry Pi
Note: Please note that NOOBS is no longer supported or recommended. Please switch to Raspberry Pi Imager. If you still require multi-boot functionality, consider switching to PINN, which is an unofficial…
Raspberry Pi 2, Model B
Raspberry Pi 2 Model B delivers 6 times the processing capacity of previous models. This second generation Raspberry Pi has an upgraded Broadcom BCM2836 processor, which is a powerful ARM…
The Economies of Software Testing
What do you mean by Economies of Software testing? Why software defects are costly to find and fix? How early defect detection can save much cost in fixing defects? There…
How To Make WiFi Tethering in Windows 8.1
Steps to Configure Wifi Tethering in Windows: Launch an elevated command prompt under Windows 8 (command prompt with administrator privileges). To do this Press Windows + x key in windows 8 and…
Solar power supply circuit
This solar power supply circuit project uses the 1.2v rechargeable battery and solar panel. The solar panel charges the battery when sunlight is bright enough to produce a voltage above…
Security testing – revisited
This blog (security testing revisited) is intended to summarize few of my post related to security testing :- Ethical Hacking – part 1 – Before going into details of how to ethical…
Selenium Ruby Binding – how ?
Good part of selenium is that the selenium tests can be written in multiple programming languages like c#, Java, Perl, PHP, Ruby etc. I normally hear saying that “This Java…
How to use multiple solar panels?
Calculating watts Power[watt]=Voltage[volt] * Current[Ampere] if the panel is rated as 5v 200 mA then Power=1 watt Wiring multiple solar panels Parallel wiring This is required if your application need…