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All Posts Tagged Tag: ‘electronics’

Salvaging Valuable SMD IC

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I’ve got a non-working Pickit 2 clone lying around. It uses the popular PIC18F2550 because it has USB capabilities. A quick check on Element 14 says that this MCU costs RM 19. That is an expensive microcontroller. Normally a heat gun is required to remove SMD components but I couldn’t be bothered to buy one just to remove a few …

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L298N Dual-Channel 2A Motor Driver

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I’m working on a new project which has two 12V DC Geared motors. Below are their specifications. Its’ rated current is 410mA but if it is stalled, it requires a whopping 1.8A. Stall current is the highest current that the motor will consume when the load is too much (causing the motor shaft to stop turning). When choosing a suitable …

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PID Line Following Robot

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Previously, I’ve made a Bluetooth Controlled Robot (read post). By adding a line sensor to the robot, I’ve managed to create a simple line following robot and utilize the ever popular PID algorithm to navigate the robot. You can read more about my DIY line following sensor here and how I made it. Now it’s time to mount this line following …

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PCD8544 Nokia 3310 Graphical LCD

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Remember the good old Nokia 3310? For display, it’s using a Philips PCD8544 Graphical LCD. It features a whopping 84 x 48 pixels of resolution to ensure true clarity when playing Space Impact or Snake II 😀 Apparently now you can buy a module with this graphical LCD on it for around RM 10 shipped from China. Well, if you …

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Arduino + Visual Basic : Servo Control

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To start off, here is a demo video on how the program works. Servo motor provides angular control to users, and unlike normal DC motors, it can only rotate from 0 to 180 degrees. It is very accurate and are often used in robotic applications. Normally every servo motor has 3 connections, 5V (Red), Ground (Black) and Signal (White). The …

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Bluetooth Controlled Relay

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A relay is an isolated switch, there is no connection between the switching device and the connection. Relay is often used when controlling high voltage devices so that the intricate low voltage devices will not be damaged. There are many types of relays but the most commonly used ones are electromechanical relays. They are cheap, simple and provide very good …

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