usbtousar usb to serial circuit
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programming pen usb interface
The project involves a trigger programming solution using a built-in pushbutton. The approach taken was to integrate a small USB keyboard circuit into the pen's interface. A proposed method for the pushbutton to trigger a programming command included adding a...
USB to serial converter circuit
The LEDs operate in an active-low configuration (0), while the initial state of the switches is high (1). In other words, the PC software must send a low signal (0) to activate the LEDs, and if a low signal (0)...
Power Supply For USB Devices
Although a matching charger is typically included in the package, some devices can only be charged via a USB port. This is not surprising for USB MP3 players, which need to dock with a PC for file transfers. However, this...
usb power supply with lm2575
Additional power supply for USB devices. Refer to the page for an explanation of the related circuit diagram.
The additional power supply for USB devices is designed to enhance the power availability for devices that may require more current than what...
USB LED Lamp Circuit using 5 Volts
A simple USB LED lamp circuit utilizing a 5-volt power supply sourced from a USB port, designed to illuminate a desktop or laptop computer during power outages.
The USB LED lamp circuit operates by converting the 5-volt DC power provided by...
Multiuse tiny1
This small PCB, named Multiuse Tiny1, was originally designed to convert NES/SNES controllers to USB. Given the limited space inside an SNES controller, the PCB was designed to be as compact as possible. The design has evolved over time, accommodating...
RS232 to RS485 Converter Circuit Schematic
RS232 to RS485 Converter Circuit Schematic. RS232 to RS485 converters are primarily utilized in industrial and commercial settings.
The RS232 to RS485 converter circuit is designed to facilitate communication between devices using different serial communication standards. RS232 is commonly found in...
HP 200LX USB / Power Supply dongle
A personal digital assistant was introduced in 1994, often referred to as a palmtop computer. It was notable for being, with minor exceptions, an MS-DOS-compatible computer in a palmtop format. It featured a monochrome graphic display, a QWERTY keyboard, a...
USB Fuse
Life in the 21st century would be nearly unbearable without certain computer peripherals that PC users now consider essential. For instance, the USB-powered teacup warmer is an invaluable productivity tool for users, but it could potentially cause issues if the...