About: Ibrar Ayyub

Introduction This little project was one of my first projects with microcontrollers. First, I made the circuit then, for years, I was wondering what I could do with it, until one day I came across this IKEA plastic bag dispenser. I knew immediately, it would make a perfect “housing” for my mood light. Hardware I […]

You wake up in the morning. You’re groggy. You grab your phone lazily and start browsing. You check the weather, your stocks, your instagram. Before you know it, you’re running late! Do your mornings look like this too? We’ve been there! We wanted to streamline our mornings so we built a morning feed so that we can […]

When it comes to debugging a microcontroller circuit, there aren’t a lot of simple options.  Since a microcontroller circuit might have multiple things going on at the same time, measuring voltages with a DMM isn’t an option.  Using an computerized In-Circuit-Debugger solution is expensive and elaborate, and time-consuming to set up.   People often resort to […]

Pingbot is a very small (38mm diameter), usb rechargeable, programmable, musical, remote control robot designed for maximum fun and danceability. I’ve built a few experimental robots in the past and, to be honest, they all looked the part. They were nothing more than circuit boards with wheels glued on.They did help me learn, but they […]

Description The MAX44299 is a low-side current, voltage, and power monitoring circuit that provides an analog output current proportional to the measured current, voltage, and the internally calculated instantaneous power. Instantaneous power is calculated internally by multiplying the load current and a fraction of the load voltage set by an external resistive divider. All three […]

This project is about building a microcontroller-based digital room thermometer plus hygrometer that displays temperature and relative humidity on 4 large (1 inch) seven segment LED displays which adjust their brightness level according to the surrounding illumination. It consists of a closed loop system that continuously assesses ambient light condition using an inexpensive light-dependent resistor […]

We use the Bus Pirate to interface a new chip without writing code or designing a PCB. Based on your feedback, and our experience using the original Bus Pirate to demonstrate various parts, we updated the design with new features and cheaper components. There’s also a firmware update for both Bus Pirate hardware versions, with […]

UNICEF and ARM have announced a multi-year, multi-million pound partnership to accelerate the development of new technologies to overcome the barriers that prevent millions of families from accessing basic health, education and support services. “We’ll be working with UNICEF’s labs to productise their ideas, ” ARM evp Ian Drew told Electronics Weekly, “we’ll work with […]

Overall Discussion This is a relatively unreliable and coincidentally functional ESP8266 Ethernet driver. It only uses two pins on the ESP, the I2S pins, but does provide Ethernet. It does all its own manchester encoding/decoding, framing, FCS, etc. It mimics the ENC424J600 stack found in avrcraft and borrows the IP, ARP, UDP and TCP stacks […]

Capacitors are one of the most common passive electrical components that are extensively used in all kinds of electronic circuits. In this project, we will discuss a technique of building a digital capacitance meter using a PIC microcontroller. This project can measure capacitance values from 1 nF to 99 ?F, with a resolution of 1 […]