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“This is my next build using LED matrix’s. You may have seen my last one - 81 LED Chaser, well this project uses 100 LED’s and is an oscilloscope! Admittedly, the resolution isn’t great for checking measurements (it …
“A few months ago I made a Vu Meter using IC LM3915. The results from the Vu meter are quite good for me. And in this article I made another vu meter with a different IC. The IC that I …
“Today Carbon Monoxide (CO) meters are available in different forms. Overall, Carbon Monoxide meters sense CO fast and display the amount to the user and trigger alarm if it reaches a critical level. Compare with most of the DIY Carbon …
“I put together this Voltage Unit (VU) meter using LEDs on a breadboard the other day. It only has 4 LEDs, but can easily be expanded to more It’s basically a simple display for showing a value. It’s …
“This is Zappette The Robot Clock! Years ago I made Zappo The Robot Clock for my son. Now I needed to make one for my daughter. Zappette is an Arduino microcontroller based, fully functioning alarm clock and MP3 player with …
“If, like me, you have a camera, you certainely also have some batteries, the issue is, you never know if a battery is full or empty ! so I made a portable module on a battery cap, in order to give …
“DIYers…We have all been through the situation when our high end chargers are busy charging those lithium polymer batteries but you still need to charge that 12v lead acid battery and the only charger you got is a blind …
“O2 sensors do wear out and eventually need to be replaced. The performance of the O2 sensor tends to diminish with age as contaminants accumulate on the sensor tip and gradually reduce it’s voltage. This is caused by substances …
Texas Instruments Inc. (TI) is an American technology company that designs and manufactures semiconductors, which it sells to electronics designers and manufacturers globally. Headquartered in Dallas, Texas, United States, TI is one of the top ten semiconductor companies worldwide, based …
” Im going to show you how to make a nice 20 LED VU meter with minimal parts and effort. Ill show you how datasheet is a very strong and viable tool to work with on your project instead on relying …
“Home made Light Saber projects can consist of one bright led in the hilt or a row of LED’s in the shaft that all light up at the same time. To look a bit more authentic a sequential lighting …
“0 20V LED Voltmeter kit displays the voltage of the source using 20 LEDs. This projects is based on the famous LM3914 IC from National Semiconductor.”