News & Updates - PIC Microcontroller

MAXREFDES73#: Wearable, Galvanic Skin Response System

The MAXREFDES73# reference design is a wearable, mobile galvanic skin response (GSR) system featuring the MAX32600 wellness measurement microcontroller. This battery-powered platform takes high-precision AC impedance measurements while consuming minimal power. The MAX32600 microcontroller features the industry-standard ARM® Cortex®-M3 32-bit RISC CPU that operates at up to 24MHz, while integrating multiple high-performance analog peripherals. Analog […]

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Short circuit protection for (almost) any power supply

Step 1: Understanding the circuit The circuit is really easy to understand. A resistor of low value (the resistor value will be explained later) is connected in series with the output of the power supply. As current starts to flow through it, a small voltage drop will appear on it and we will use this

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Binary wrist watch guarantees being identified as a nerd

I have just finished my binary wrist watch project (well, the new revision anyway). I was surprised at how small I was able to make it compared to last time. I chose to go with the “super-yellow” color LEDs as they fit the purple OSHpark PCB very nicely. The biggest challenge was actually making a

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Isolated USB-to-UART converter builds in 20 minutes for $20

I stood in stunned silence at the smoke billowing up from the hardware on the workbench. Just moments before, it had been operating as expected, before self-destructing with a sound that can only be compared with a gunshot. The failure of the hardware under test had an unexpected consequence: the computer that had been using

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Infineon packages diode with IGBT

Infineon is sampling an IGBT package which can hold an IGBT up to 120A and a full rated diode in the same footprint and pin-out as JEDEC standard TO-247-3. Volume production is planned for Q1 2015. The TO-247PLUS can be used in industrial applications such as UPS, welding, solar, industrial drives as well as automotive

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PCB 3: UCload

With no snow outside I finally got around to solder the 3rd PCB. It is the second revision of a microcontroller dummy load. It is loosely based on the arachnidlabs uc:load. It uses the same base ciruit and adds a microcontroller (PIC16F1825), rotary encode switch, external powersupply and offcourse a 128×32 OLED. The picture shows a

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LTC3815 6A Monolithic Synchronous DCDC Step Down Converter with Digital Power System Management

Converting from Eagle to KiCad.

Quick Introduction Video Recommended video player Firefox 43+ with VLC video player plugin The following 5 ulp (eagle user script file) and one ulp include file, work together or stand alone to convert Eagle sch/pcb version 6.xx(7.xx maybe?) file(s) and any version of Eagle lib(lbr) to KiCad sch/pcb and lib/mod files. The Programs will do

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LTC3815 – 6A Monolithic Synchronous DC/DC Step-Down Converter with Digital Power System Management

Features 2.25V to 5.5V Input Voltage Range ±1% Total Output Voltage Accuracy Over Temperature at VIN = 3.3V or 5V Single Resistor-Programmable Output Voltage PMBus Compliant Serial Interface: Programmable Output Voltage Margining: Up to ±25% VOUT Range with 0.1% Resolution Read back of Average and Peak Temperature, Current, and Voltage (25Hz Refresh Rate) Fault Status

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Weller WSD81i soldering station now with a cleaning set for free

Reliable „industrial“ station WSD81i for excellent price and a set with a value of 40 Eur as a free bonus – that´s our gift to you. Innovated soldering station Weller WSD81i was in-depth introduced to you in our article Weller WSD81i soldering station doesn´t need a calibration even after years. WSD81i soldering station hides behind

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UK firm finds niche in easy street lamp refits

Making it easy to switch street lamps over to LEDs, is the way West Yorkshire’s Harvard Engineering aims to sell LED lighting to councils. It has created the Retro LED family of ‘gear-trays’ which replace the original discharge lamp assembly – be it low-pressure sodium (SOX), high-pressure sodium (SON) or fluorescent. Each assembly is aimed

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