Peter has sent his newest arduino project that we might find really practical. Probably many of us find ourself in situation when wee need to switch between speakers and headphones while sitting by computer. This leads to messing around tons … Continue reading
Category Archives: Free Hobby Electronics Circuits
Drawdio – It’s Time to Draw Your Music!
When someone tells you that you can draw your favorite music by simply using a pencil, would you consider that person a nuts? Honestly, it’s very hard to convince the public that we can actually drawing the music with only … Continue reading
Wireless Accelerometer Based Mouse is At Your Service!
You’re getting enough with the wire-controlled mouse and ready to have something different here? If you didn’t have the desire to buy the ready-to-use wireless mouse, then it’s time to show up your talent: Go and build an amazing wireless … Continue reading
Just a Bloody Simple Negative Power Supply
Are you really frustrated at the time you’re cannot find the suitable and simple negative power supply when you need it the most? Well, isn’t doing an electronic project should be a fun test? You can immediately change the above … Continue reading
Show Your Talent by DIY a Sun Tracking Unit
Probably you saw Sun tracking system before; however do you have the urge to challenge yourself to make a Sun Tracking Unit? First of all, get a tiny .7″x1.4″ PC board using the LED3X sensor concept. This circuit uses power … Continue reading
DIY pulse soldering iron
The biggest benefit I see when working with pulse soldering iron is speed and effectiveness. Of course when you don’t work, it stays cool this means it saves energy, doesn’t evaporates poisonous steam and there is no risk accidentally to … Continue reading
Precise USB2.0 temperature sensor with minimum components
The idea of reading temperature via USB is very simple. Construction is reliable, precise and requires few components. Circuit is very simple as there is USB to UART converter IC used. USB to UART conversion is performed via F232RQ … Continue reading
DIY simple band-pass filter
This filter was designed to filter 1kHz frequency of telemetric signal from environmental noise. Filter itself is very simple built with acceptable electronic parts worldwide. This filter can be used in any circuit because of it’s simplicity. Circuit contains … Continue reading
DIY USB to RS232 adapter
Sometimes you just need to connect some device to COM port, but computer don’t have one especially laptop. There are two ways – go and buy USB – COM adapter or build one. So if you decided to build USB … Continue reading
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