About: Ibrar Ayyub

A Coventry-based company which develops digital printing systems used in high resolution photographic printing believes the system has the resolution to print electronic circuits. LumeJet, a spin-out from Warwick University, developed a three-colour RGB digital print head which is used in an inkless digital photographic printer. The company plans to use the printing technology for […]

Researchers have developed a device that uses your smartphone to monitor your stress levels. The device can use any smartphone to measure the cortisol concentration in saliva in less than 10 minutes, researchers said. “We have developed a method for measuring cortisol in saliva using a smartphone and a disposable test strip. This innovation enables […]

I hope that you already go through the first tutorial of MPLAB XC8, Getting Started with MPLAB XC8 – LED Blinking. In that tutorial we learn how to use an output pin by driving an LED. In this we will learn how to read an Input pin using a push button switch. We already seen […]

Description This project functions as a simple strobe for driving an LED.  The use of an output transistor allows it to pulse the strobe LED with a current up to 100mA. Four jumpers provide options for changing the pulse width, strobe repeat interval and single or double strobe flash.  The programmer ready code has default […]

Seoul, Korea, Feb 16th, 2016 – LG Innotek, a leading global components and materials manufacturer, announced the development of an ultra slim optical bio sensor module with the world class level of performance. The optical bio sensor module is mainly adopted wearable devices and smartphones to measure heart rates, stress indices, and oxygen saturation levels. […]

Thermometer can be easily constructed using a PIC Microcontroller and LM35 Temperature Sensor. LM35 series is a low cost and precision Integrated Circuit Temperature Sensor whose output voltage is proportional to Centigrade temperature scale. Thus LM35 has an advantage over other temperature sensors calibrated in Kelvin as the users don’t require subtraction of large constant voltage to obtain […]

I recently bumped into NodeMCU firmware for the ESP8266. It’s an Lua interpreter, making tinkering with IoT ideas really simple. Just flash the firmware onto the ESP8266 and connect via serial console. You can start prototyping right away using the interactive Lua interpreter. You can easily persist your ideas on a simple flash file system. […]

#include <16F877.h> #device adc=8 #FUSES NOWDT ,XT #use delay(clock=4000000) void main() { set_tris_b(0x00); setup_adc_ports(NO_ANALOGS); setup_adc(ADC_OFF); output_b(0x00); while(true){ output_b(0xff); delay_ms(500); output_b(0x00); delay_ms(500); } }

This is a simple digital counter with a serial rs-232 and a 7 segment display, i started this project to count items on some shelfs, but it can be used for anything, it is also, for the exception of the connectors, completely on SMD components. The circuit is made around a PIC16F88, and takes use […]

Programmable relays are key elements in numerous automation applications such as automatic street light control, watering and pump control, HVAC, home automation, power plants automation in industries, etc. This article describes a DIY programmable relay switch using PIC16F1847 (PIC16F628A can also be used) microcontroller. It is a revised version of my previous PIC-based relay timer project with added […]