Author: mixos
16×32 RGB Matrix Panel Driver Arduino Shield
Raj @ embedded-lab.com has revised his RGB Matrix Display Shield to an improved version. The shield now also carries the DS1307 RTC chip on board along with a CR1220 coin cell battery holder on the back. It is applicable for driving popular 16×32 RGB matrix panels with HUB75 (8×2...
Continue ReadingTest application for the FPGA Tibbit in the smart LED controller configuration
This application example shows how to connect and use RGBW LED stripe with TPS hardware platform. The main difficulty is that LEDs have their own color generation circuit inside. New FPGA Tibbit #57 can generate fast PWM signal, which is needed for proper LEDs operation. Also, the...
Continue Reading4 Digit MultiPlexed 0.33 Inch 7 Segment Common Anode Display
7 Seven segment multi-plexed display is tiny board that has been designed around Common Anode 4 digit Display, Display has 12 Pins. The board is provided with current limiting resistors on all LED segments and 4 PNP Transistors to drive 4 digits, the project is ideal for easy...
Continue ReadingEssential 10 Arduino DIY Arduino board schematics
James @ seeed.cc has compiled a list of the most popular Arduino boards including schematics and PCB. You can download the files here. Arduino is now a very popular open source development board, many people are using the Arduino Development Board to develop interesting, creative...
Continue ReadingReverse engineering a server CPU voltage regulator module
Andy Brown wrote a detailed article on reverse engineering a CPU voltage regulator: A recent ebay fishing expedition yielded an interesting little part for the very reasonable sum of about five pounds. It’s a voltage regulator module from a Dell PowerEdge 6650 Xeon server. I...
Continue ReadingSonicare toothbrush teardown: microcontroller, H bridge, and inductive charging
Ken Shirriff did a teardown of a Sonicare electric toothbrush: The photos below show the top and bottom of the toothbrush internals. I expected to find a simple, low-cost mechanism, so I was surprised at how much complexity there was inside. The vibration mechanism (right) is built...
Continue ReadingLT3086 – 40V, 2.1A Low Dropout Adjustable Linear Regulator with Monitoring and Cable Drop Compensation
Graham Prophet @ www.edn-europe.com discuss about LT3086 LDO. The 40V, 2.1A low dropout linear regulator (LDO) includes current monitoring with externally settable current limit and temperature monitoring with external control of thermal limit temperature. The device includes a...
Continue ReadingThe new 800V CoolMOS MOSFET from Infineon
Thomas Scherer @ elektormagazine.com shares the news about a CoolMOS Mosfet from Infineon. The latest 800V CoolMOS P7 800V MOSFET from Infineon is based on their superjunction technology. The device is available in twelve classes of RDS(on) beginning with 0.28 Ω and in six...
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