An isolated analog input for Arduino
Giovanni Carrera designed a circuit that accepts input voltage from about 20mV to 5V or a current of 4 to 20 mA and converts it to a isolated frequency signal. A voltage to frequency converter can realize an opto-isolated analog input for Arduino or other microcontroller systems....
Continue ReadingHow to Measure LUX With Arduino
In this tutorial codebender_cc uses the Adafruit TSL2561 sensor to measure LUX with Arduino. The TSL2561 luminosity sensor is an advanced digital light sensor, ideal for use in a wide range of light situations. Compared to low cost CdS cells, this sensor is more precise, allowing for...
Continue ReadingCIRCUIT WIZARD – Circuit Simulator for begginers
Circuit wizard is one of the good simulators for beginners. Here the tutorial explains how to draw and simulate a circuit in circuit wizard simulator CIRCUIT WIZARD - Circuit Simulator for beginners -...
Continue ReadingHow to Set Up WiFi on the Raspberry Pi
circuitbasics.com show us how to setup a Wifi dongle using SSH connection. Now I’ll explain how to use that SSH connection to setup a WiFi dongle so you can run your Raspberry Pi wirelessly from a remote desktop application. This is a really useful way to set up your Raspberry Pi,...
Continue ReadingSoft Latch Power Switch Circuit
Dаvid Jones through his Youtube channel EEVblog described in detail how to design a cheap soft latch power switch circuit, using one push button switch to toggle your circuit power on and off with the following design requirements: Zero power when off. One on/off switch....
Continue ReadingNew Alcohol Monitoring System from University of California, San Diego
A new alcohol monitoring system from UCSD consists of a temporary and one-time use tattoo that clings to the human skin and a flexible electronic board that attaches to the tattoo magnetically transfers the results of sensing the blood alcohol concentration via Bluetooth to a smart device...
Continue ReadingOpenCellular – An Open Source Wireless Access Platform From Facebook
Promised projects from Google and Facebook may change our world connectivity. We saw previously Loon project from Google and the Internet drone Aquila from Facebook. Facebook this time is trying to find a general solution to improve the connectivity infrastructure. The project called...
Continue Reading16 Channel Tiny InfraRed Remote Controller – NEC Code
16 Channel Infra-Red remote controller is built around PIC16F73 Microcontroller from Microchip. The receiver part follows NEC Code Format. Tiny receiver provides 16 latch outputs. All outputs are TTL and can drive Relay board or solid state relay. The circuit uses TSOP1738 Infra-Red...
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