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RFID-Based Security System with AVR ATmega32 Microcontroller

Security - Safety Projects / Ibrar Ayyub

Here are some potential issues or limitations with the proposed RFID-based access control system design: Privacy/Data Security – Stored RFID tag IDs could potentially be hacked or leaked, exposing user privacy. Proper encryption and access controls would be needed. RF Interference – The RFID reader’s performance could be impacted by other electromagnetic devices/signals in the […]

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LIFEPO4 CHARGER BOARD BASED ON CN3058E

Electronics News Updates / Muhammad Bilal

A 3.6 V set point is not a de-rated 4.2 V set point Both chemistries use the same four-stage profile: precharge, constant current, constant voltage, terminate on taper. Texas Instruments puts the CV point at 3.9–4.2 V for Li-ion against 3.5–3.65 V for LiFePO4, with precharge thresholds near 3.0 V and 2.0 V respectively (LiFePO4

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SOLAR-POWERED LI-PO RECHARGEABLE BATTERY OFFERS HIGH POWER CAPACITY

Uncategorized / Muhammad Bilal

A campaign for a new set of lithium rechargeable batteries has been launched on Kickstarter called Solarcell. Solarcell is the latest of Lithium rechargeable batteries with a USB-C connection that offers a high power capacity and is extremely safe. There’s a large selection of battery models to help you power up any of the devices you own and

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Wave JT – Larson Scanner With Joule Thief

LED Projects / Muhammad Bilal

I love LED chasers. A bunch of LEDs neatly turning on and off on a precise timing – lights running one way, then the other way… It’s relaxing, soothing, and hypnotic. There are so many LED chaser/scanner/sequencer circuits out there, some are made with discreet transistors, some based on logic ICs, and more and more

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Battery Powered Simple Waste Auditing Data Logger ♻️

Battery Projects / Muhammad Bilal

I wanted a way to keep track of how much waste I was generating just to be more environmentally conscious. So I created this project as an automated way to help keep track of waste accumulation through fullness measurements while also taking pictures of the objects thrown away. To achieve this, I use the HC-SR04

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How to Run Servo Motors Using Moto:bit With Micro:bit

Motor Projects / Muhammad Bilal

One way to extend the functionality of the micro:bit is to use a board called moto:bit by SparkFun Electronics (approximately $15-20). It looks complicated and has many features, but it isn’t hard to run servo motors from it. Moto:bit allows you to run more powerful motors than the tiny micro-motor that you can run from the micro:bit

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Paper Pocket Pets

Other Projects / Muhammad Bilal

Paper Pocket Pets (PPP) is a kit designed to create interactive modular and wearable toys. It encourages children’s movement and sociality thanks to the reactions of the pet and allows children to build their own representative pet and also to change it over time if they want. Interaction dynamics The pets are designed to be

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Serial Monitor With ILI9341 and BluePill

Battery Projects / Muhammad Bilal

Serial (ascii) monitor with 9 lines of 28 char.Baudrate from 2400 up to 256000 baud. Digital 3.3V or 5V input. Powered by a single Lithium-Ion battery. (3.7V nominal). Supplies: ILI9341 display (here a parallel version is used) BluePill (or other board with a STM32F103C8) 74HC14 (hex invering schmitt trigger) 3.3V low dropout voltage regulator rotary

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Make Your Own Oscilloscope(Mini DSO) With STC MCU Easily

Battery Projects / Muhammad Bilal

This is a simple oscilloscope made with STC MCU. You can use this Mini DSO to observe waveform. Time Interval: 100us-500ms Voltage Range: 0-30V Draw Mode: Vector or Dots. Step 1: Watch the Video! In this video, I will show you how to assembly this Mini DSO step by step. Step 2: Prepare Your Parts!

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Wearable Child Tracker

Blog / Muhammad Bilal

Are you worried of your kids getting lost when you are out at a crowded place? That’s obvious, isn’t it? This project will reduce the risk of children getting lost at unknown and crowded places thus will also eleminate your nightmares. As you may have already guessed from the name, this project is basically a

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