AC LED Light
Circuit Diagram for AC LED Light Resistor=240v -( Number of LEDs *3.3) A =240 – (41*3.3) A =7000 Ohms Either use 6.8k or 7.1 K with power rating of 7-10 watt or 4*2.1 k 2watt Suggested Layout for AC LED…
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.
Category Electronics
Solar mobile charger circuit
Solar mobile charger circuit using LM7805 fig1 C1 and C2 – 4700 µf This circuit is self explanatory. It uses solar panel to convert light energy to electrical energy to charge your mobile. It uses 5v regulator IC 7805 to…
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Buy electronic components online in India
There are many online sites from where to buy electronic components online in India. Some of the most popular ones are listed below. My favourite is OnlineTPS.com, in.rsdelivers.com and Aliexpress.com Below are sites which I have tested and are good. …
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Remote controlling Raspberry Pi
Remote controlling Raspberry Pi using SSH Enable SSH in raspberry pi using the command raspi-config From window machine use putty to connect to Raspberry Pi From Linux Machine or Mac use terminal to connect eg: ssh pi@xxx.xxx.xxx.xxx Remote controlling Raspberry…
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7 Segment Display
A 7 segment display is typically used to display numbers from 0-9. It consists of 7 bar segments and a dot( 8 Segments). Segments are numbered A to F and DP for the dot or decimal place. There are 2 types…
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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
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How to install NOBS for Raspberry Pi
Install NOBS for Raspberry Pi To get started with Raspberry Pi you need an operating system. NOOBS (New Out Of the Box Software) is an easy operating system install manager for the Raspberry Pi. You can also have Windows 10 on…
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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 Cortex-A7 based quad-core processor that runs at 900MHz. The board…
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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 1.9v. The regulator transistor is designed to limit the output voltage…
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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 more power than rated. By connecting the positive terminal of…
