I was frustrated by trying to remember my passwords for all my websites and got even more frustrated when i need to change a password again after some months. Dont even to mention the needed complexity of them nowadays. A bit insired by the mooltipass featured on hackaday, but too scared of the complexity and […]
Password manager Continue Reading
This application note describes how to record, store and play back sound using any AVR microcontroller with A/D converter, the AT45DB161B DataFlash memory and a few extra components. This application note shows in detail the usage of the A/D Converter for sound recording, the Serial Peripheral Interface – SPI – for accessing the external DataFlash
Digital sound recorder with AVR and DataFlash Continue Reading
I’m not going to explain in detail what is ESP8266 because if you have found this post I’m sure you already know it. But just in case, it is an awesome cheap board (less than 4$) with built-in wifi communication (802.11 b/g/n), and SPI, UART. You can also use its processor to run your code. Wiring: Use
How to use ESP8266 ESP-01 as a SENSOR web client Continue Reading
Internet is “good For more detail: Are you familiar with Internet of (every) Things?
Are you familiar with Internet of (every) Things? Continue Reading
Minimal power consumption, slim design and a big amount of available versions with multi-color backlight – these are some benefits of the EADOG series displays. EADOG series is familiar to many of you and probably it´s your favorite one from these main reasons: displays are unusually flat (thin) the have a very low power consumption
Industrial applications rely on the EA DOG displays Continue Reading
In this tutorial Dave describes what AC trigger coupling is on an oscilloscope and why it can be useful. Not only on old analog CRT oscilloscopes, but modern digital scopes as well. How and why is it different to AC channel input coupling? Also, use of the 50% trigger control, and how the venerable DS1052E
EEVblog #685 – What Is Oscilloscope AC Trigger Coupling? Continue Reading
Today’s “Back to Basics” tutorial topic – why flyback or snubber diodes are used around relay coils when switched or controlled by low power electronics. We’ll talk about how and why dangerously high voltages can be generated from the collapse of the stored magnetic energy in the coil when they’re switched off, and how the
Why diodes are used around relay coils Continue Reading
3 Tone Siren project produces Gun Sound, Police Siren and Ambulance Siren effects from a speaker. This project is built around UM3561 IC driving an LM386 audio amplifier to give that extra punch. For more detail: 3 Tone Siren
Now on display at Electronica 2014, the SmartConnect SAM W25 module is the industry’s first fully-integrated FCC-certified Wi-Fi module with a standalone MCU and hardware security from a single source. The module includes Atmel’s recently-announced 2.4GHz IEEE 802.11 b/g/n Wi-Fi WINC1500, along with an Atmel | SMART SAM D21 ARM Cortex M0+-based MCU and Atmel’s ATECC108A optimized CryptoAuthentication
Introducing the SmartConnect SAM W25 module for edge nodes IoT applications Continue Reading
An open source 3D Printable Raman Spectrometer using a RaspberryPi and easy to find off the shelf components.. An open source 3D Printable Raman Spectrometer that uses a raspberryPi, a couple of arduino compatible ARM boards, a really bright laser and some parts you can grab from eBay, adafruit, sparkFun, Mouser, or wherever…! For
ramanPi – Raman Spectrometer Continue Reading
