UsbSafe² – Programmable dongle for protecting USB devices from USB hosts and chargers

UsbSafe² – Programmable dongle for protecting USB devices from USB hosts and chargers

USB connections can transfer both information and power.


USB by mixos
Attiny2313 & Attiny84 V-USB Media Volume Control

Attiny2313 & Attiny84 V-USB Media Volume Control

Rupert Hirst shares his thoughts on creating a V-USB based media volume control: Although you may think a rotary encoder is just...


USB by mixos
LTC3623 – Switching regulator doubles as Class-D audio amplifier

LTC3623 – Switching regulator doubles as Class-D audio amplifier

Clemens Valens @ elektormagazine.com discuss about LTC3623 switching regulator which can be used as Class-D Audio Amplifier.


ICs Power USB by mixos
4 Digit MultiPlexed 0.33 Inch 7 Segment Common Anode Display

4 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...


A full-featured, portable weather data recorder

A full-featured, portable weather data recorder

Do you wonder how to build a personal weather station with data logging capability?


Analog front-end IC linearizes sensors

Analog front-end IC linearizes sensors

Susan Nordyk @ edn.com discuss about LTC2986 which is able to digitize and linearize a combination of temperature sensors in...


Share Your Internet Connection With Raspberry Pi Zero Over USB

Share Your Internet Connection With Raspberry Pi Zero Over USB

Raspberry Pi Zero is the smallest member in Raspberry Pi single-board computers family with a single-core 1 GHz processor chip, a...


MAX232: The classic IC lives on since 1988

MAX232: The classic IC lives on since 1988

by Len Sherman @ edn.com: The June 23, 1988 issue of EDN included a Maxim Design News insert where we asked “Who in their right mind would choose a c...


SoM / CoM USB by mixos
Homebrew Multimode Digital Voice Modem adapter

Homebrew Multimode Digital Voice Modem adapter

Florian Wolters made his own version of MMDVM adapter: During experiments with digital voice mode in hamradio I discovered a nice...


ESP8266 temperature logger

ESP8266 temperature logger

A ESP8266 temperature logger project from Facelesstech: I decided to use the esp-01 module because I only need 2 GPIO pins since...


Hall-effect current sensing replaces shunt-resistive measurements

Hall-effect current sensing replaces shunt-resistive measurements

These high speed isolated calibrated current sensors are presented as an effective alternative to conventional shunt based...


850nm infrared LED outputs 770mW at 1A

850nm infrared LED outputs 770mW at 1A

by Julien Happich@ edn-europe.com Designed for infrared illumination for cameras, surveillance systems or machine vision, the Oslon Black SFH 4715A...