In this project we will see how to build a heart rate detection system, we use a pulse sensor and an OLED display, all controlled by an Arduino Nano. The sensor detects the person heartbeat and converts it into electrical signals and pulses. The signals are amplified using a signal conditioning circuit and processed by…
The PassKeeper password storage system allows users to store a virtually unlimited number of passwords all securely encrypted and quickly accessible via a master password stored on the RFID Fob key. “The goal of the project is to create the easy to build and use device that allows to store virtually unlimited number of passwords…
Anavi Technology has this month launched a new product via the Crowd Supply in the form of the ANAVI Thermometer, an ESP8266-powered, open source, wireless dev board equipped with temperature and humidity sensors, so it can act as a thermostat for home automation. The Anavi Thermometer Development board is fully compatible with the Arduino IDE,…
Inspired by a Star Trek Tricorder, the maker has converted a handheld gyroscopic toy into an original handheld Arduino controlled heart rate monitor. The device consists of an Arduino Pro Mini with a pulse sensor and an OLED display stuffed inside the handle, which conveniently already had accommodations for three AA batteries. After opening up the handle, I…
Maker Peter Balch has been able to turn an Arduino Nano into an oscilloscope the size of a matchbox. This oscilloscope costs the price of an Arduino Nano (£2 and a display (£3) plus a few pence for resistors. The simplest version of this device, which he calls the ArdOsc, displays data on a computer…
DevDuino is an Arduino compatible with a U-shaped PCB that lets you add mezzanine shields on the bottom using male headers. The DevDuino starts with a 16MHz ATMEGA32U4 MCU with 2.5KB SRAM and 32KB flash. There’s also a microSD slot, temperature sensor, an RTC with battery slot, and a micro-USB port. Interfaces include 5x analog inputs…
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