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CircuitGizmos

CircuitGizmos provides products for sale that are designed and produced by the creative minds at CircuitGizmos, USBmicro, Amber Waves Electronics, and other fun sources of clever engineering.

Here you can purchase the USBmicro U401 and U421 USB interface that has support for SPI, LCD, 1-wire, stepper motor control, input, and output.

CircuitGizmos sells the Color Maximite 2 Computer in the form of the CG RetroMax. The Maximite runs BASIC and supports a display on VGA. A keyboard can interface to the Maximite as well as I2C, SPI, and serial devices.

The Sensor.Engine:Micro is a great way to augment a solderless breadboard and interface to things like the small boards in the 37 sensor kits. This is an easily programmed STEM controller.

CircuitGizmos also sells the unique USBPIR USB motion detection module and home automation and security software made to work with these devices.

USBmicro U421 Versatile I/O
+3

USBmicro U421 Versatile I/O

CGU421
$29.99 (USDollar)
Out of stock
1
Product Details
Lead Free: Yes

Dual-in-line package versatile USB interface

The U421 is a USB solution that is pre-built, pre-programmed, and pre-tested and will get you interfacing your PC (Win/Linux) or Mac (OSX) to various devices in very little time! There is no USB device assembly, no driver development, and no firmware to write. In many cases the U421 can be plugged into an experimenter's breadboard and circuit interfacing can begin immediately. Demo software applications can be used "right out of the box".

The U421 provides a simple digital i/o interface for the PC (Win/Linux) or Mac (OSX) . Sixteen i/o lines from the microcontroller are provided. Commands can be sent to the U421 that change the i/o lines from input to output. I/O lines can be individually selected as inputs or outputs. The U421 supports commands to read the ports, and if the ports are set to output, to write to the ports.

The U421 is an interface to SPI (Serial Peripheral Interface) devices. SPI is a local synchronous serial bus that uses a clock line, two data lines, and a device select line for communication between a serial device and a host microcontroller. The firmware on the U421 provides generic access to read and write SPI devices. Because additional pins are available as generic i/o, the U421 can use these lines as slave select lines and address multiple SPI devices.

The SPI subsystem of the U421 can be used as a master to communicate with SPI devices such as EEPROMS and A/D converters. The U421 can also be used as a SPI slave to a microcontroller that uses the U421 as a gateway to the PC (Win/Linux) or Mac (OSX).

The U421 is a convenient way to interface a standard Hitachi-type of intelligent LCD controller to USB.

The U421 is an assembled and tested circuit card that is 1.5 inches (38.1mm) long and 0.75 inches (19.1mm) wide. The U421 is a printed circuit board in a 24-pin "DIP-like" format.

Comes with USB cable - no need to purchase one separately.

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Electronic Products for Creative Minds

CircuitGizmos is your source for electronic products that help you create your embedded projects. Here at CircuitGizmos.com you will find a friendly store filled with creative products and all of the documentation that you need to use these gizmos.

We create devices that we believe make electronics fun, but we also know that our products are used for professional designs. For decades we have designed products for commercial, military, and medical industries. Our gizmos here are great for engineers and hobbyists alike.

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