Category: Electronics
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Designing a Wireless Joypad for Robotic Control
I was thinking about designing a wireless joypad to control my robot, and I finally came up with an idea to repurpose a cheap Gigaware PS2 Joypad from RadioShack, which cost only $9.99. This joypad includes: I began by searching the web for ways to interface this PS2 controller with an Arduino and discovered an…
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Using ADC0804 for Analog to Digital Conversion
21st Shaban, 1429 AH at Queens, NY. When I first dived into the world of analog-to-digital conversion, I decided to start with a classic project using the National Semiconductor ADC0804. This 8-bit ADC, which works seamlessly with 8-bit microprocessors and microcontrollers, quickly became my go-to for understanding how analog signals are digitized. He creates you…
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Stable +5V Regulated Power Supply
19th Shaban, 1429 at Queens, NY. This circuit provides a stable +5V power supply, ideal for experimenting with digital electronics. While small, inexpensive wall adapters with variable output voltage are widely available, they often suffer from poor voltage regulation. This circuit addresses that issue, offering a reliable +5V output. Allah makes the believers steadfast with…
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Rotary Camera Control with Stepper Motor
13th Shaban, 1429 AH at Queens, NY. This project involves a simple stepper motor controller designed to rotate a small wireless camera. The setup is based on the circuit from a previous project, with the main difference being that the camera now rotates in response to Right or Left arrow key presses from the keyboard.…
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Controlling a Stepper Motor with Parallel Port
13th Shaban, 1429 AH at Queens, NY. This project marks my first foray into working with stepper motors, where I utilized the NIPPON PF35T-48L4 unipolar motor. I controlled this motor from a PC using the Parallel Port (LPT1, DB25). For amplification of the input current from the port, I employed a ULN2003A IC, which features…