Posted inOthers

220 Volt to 110 Volt auto Bulb changer circuit

  This is for switching to different voltage’s bulb for proper lighting in different voltages. Sometimes the electricity supply goes in series line and merely gives some 90-100 Volts instead…
Posted inOthers

Simplest Remote control checker

I have never found a such remote tester circuit that can be as easily made as this following. Remotes work with a digital signal which is nothing but 1?s &…
Posted inGadgets

Working of Digital Weight Scale

Today I bought a digital weight scale(DWS) from ebay.in at Rs.550(~12$).  The item worked very well as promised. This is some kind of china imported piece. It’s a plastic body…
USB mp3 kit setup diagram
Posted inFM/AM USB

Digital MP3 cum FM player kit setup

  This type of ready-made MP3-FM kits are easily available in the market. The kit consists of one main board, one connector wire, one USB socket+wire, one remote with battery.…