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Category Archive for: ‘Robotics’

Rotary Encoder 500ppr Resolution

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In this post, I’ll be reviewing the B-106-23983 Rotary Encoder. It is made by ESB and has a resolution of 500 pulse per round. This is a high-end rotary encoder and is used in critical automated applications. It is mostly found in industry machines rather than consumer electronics. It costs RM 350 as stated in the cytron website. Below are …

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Bluetooth Mini Robot

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Got another new robot kit and decided to create a bluetooth controlled robot with it. It’s from DFRobot and it’s called the MiniQ. Here it is assembled. Created a simple circuit on a donut board with a L293 H-Bridge and Arduino Nano. It is powered by a 2 cell Lithium Polymer battery. Typically each cell provides 3.7V so that amounts …

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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 hereĀ and how I made it. Now it’s time to mount this line following …

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Bluetooth Controlled Robot

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Recently I’ve bought a robot base kit from eBay for around RM 50. Similar ones sold here will cost around RM 100. The kit comes with the robot base, two motors with gearbox, two wheels and some mounting accessories. The tamiya motor with gearbox. It’s rated at 230rpm @ 6V. The wheel with matching key slot as the gearbox shaft. …

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Line Following Sensor (DIY)

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This is my attempt to create a simple line following sensor on my own. These sensors can be easily bought but it can be quite expensive considering that the components on it are quite simple. It’s been some time since I’ve played with passive components and analogue design. I will be using the humble op-amp (operational amplifier) to compare the …

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