Year: 2017
CH340E, A New Small Serial to USB Chip
WCH, a Chinese integrated circuits manufacturer, has just released a new serial to USB chip called CH340E. Unlike other CH340 chips, it doesn't require an external crystal and also needs less PCB space and BOM. CH340 is a 3x3mm tiny chip comes in MSOP10 package and has 10...
Continue ReadingUsing an ATmega328 without a crystal
Here is another guide from David Johnson-Davies @ technoblogy.com explaining how to program an ATmega328 on a breadboard using the Arduino IDE. The guide is focused on how to use the internal clock of the microcontroller and how to achieve this using the Arduino environment. By default...
Continue ReadingProgrammable Power Supply Using OPA548
Project provides 1.2 to 20V DC output with current limiter adjustable to 0-5A. I have tested the circuit with 250mA output without a heat sink. Project is capable to drive 3A continues load and 5A peak, large size heat sink required for full load. The tiny power supply based on low cost...
Continue ReadingBomist – Parts Inventory and BOM Management for Electronics
It all started a few years ago with Component Organizer, than BOMER and it's now called BOMIST. The software runs locally, so no server nor setup required and you can have as many databases as you want (just run as many instances of BOMIST as you want). Additionally, it is integrated...
Continue ReadingProto Board Power Supply
David Johnson-Davies @ technoblogy.com build a breadboard friendly power supply to power your Arduino or other low power electronics. The power supply is able to deliver 0V to 5.5V at up to 0.5A and it's powered from two Li-Ion rechargeable batteries. The output can be adjusted using...
Continue Reading72 Channels Serial To Parallel Driver Board Using 74HC595 & ULN2803
72 channels Serial (SPI) to parallel driver board has been designed for various applications. This project can be used as multi Solenoid driver, large size 7 segment display driver, bar graph driver, and LED driver. The project works with 5V logic levels. Output load supply 12V-48V DC...
Continue ReadingLCR-Reader MP: the Ultimate PCB Debugging Tool
With LCR-, ESR-meter, AC/DC Voltage/Current meter, Oscilloscope and Signal Generator this device covers all needs for low frequency PCB debugging. LCR-Reader-MP recently released by Siborg Systems Inc. which joins the LCR-Reader family of handheld LCR- and ESR-meters, offers users...
Continue ReadingFastCAP Launches a Chip Ultracapacitor
FastCAP Systems has launched its latest product – a board mountable chip ultracapacitor. This new product offering is the first low ESR, thin-profile, reflowable ultracapacitor on the market and is now available for purchase in FastCAP’s online store. This chip ultracap has the...
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