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Posts Tagged ‘USB’

USB to RS485

Monday, May 30th, 2016

Marko Pavlin has published a new build: Testing of sensors with RS485 using PC without proper interface is not possible. Since RS232 interfaces are very rare, the interface should be hooked to USB. The interface between USB and RS485 can be soldered with one of the many FTDI interfaces with...

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Posted in DIY | 2 Comments »

USBuddy: USB development tool

Saturday, May 21st, 2016

Jakub has designed and built a USB breakout board with current monitor, an open hardware tool - USBuddy: Do you sometimes develop with USB? I do. So I need to access data lines, bus voltage and I'd like to easily monitor the current too. I made myself a small companion...

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Posted in tools, USB | No Comments »

USB to ADB converter project

Friday, April 8th, 2016

Steve at Big Mess o’ Wires has been experimenting with USB to ADB converter.  He writes: It’s time for a new progress report on my USB to ADB converter project! My goal is to design a simple PIC32 device that enables USB keyboards and mice to be used with vintage ADB-based...

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Posted in USB | No Comments »

Atmega16u2 virtual serial example using LUFA Library

Wednesday, January 6th, 2016

Shane of Wattnotions has published a new build, an Atmega16u2 virtual serial LUFA board: What I wanted the LUFA library to do was pretty specific – the atmega16u2 should show up as a virtual serial port so that the computer can connect and read data from it like any other serial...

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Posted in hacks, library, PCBs | No Comments »

DIY USB volume knob

Wednesday, January 6th, 2016

Markus Gritsch made a nice USB volume control knob for his computer: After having been inspired by this Instructable [1] I also wanted to make a nice looking volume knob to attach to my computer. It uses the TrinketHidCombo library [2], but on a Digispark board, to have one more...

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Posted in project logs | 1 Comment »

Ultimate classic game console joystick to USB adapter

Wednesday, December 30th, 2015

Matthew Heironimus posted a step by step guide of his “ultimate” classic game console joystick to USB adapter build: This article describes how to use an Arduino Leonardo or Arduino Micro to make up to three classic console joysticks (e.g. Atari 2600, ColecoVision, and possibly others) available to a modern computer...

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Posted in Arduino, DIY, how-to | No Comments »

App note: Protecting the Universal Serial Bus from over voltage and overcurrent threats

Sunday, November 22nd, 2015

An old application note from Littelfuse about USB protection. Link here (PDF) This application note addresses the various requirements for protecting the Universal Serial Bus (USB) from overcurrent and overvoltage environmental threats. The solutions presented cover both USB 1.1 and the higher speed USB 2.0 circuitry. Specific emphasis is placed...

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Posted in app notes | 1 Comment »

App note: Isolating USB with SPI

Sunday, August 30th, 2015

Old but still good technical note from Analog Devices on USB isolation. Link here (PDF) Currently, iCoupler® digital isolation technology is capable of transferring data at rates ranging from DC to about 150Mbps, which is adequate for transferring serial data to support low (1.5Mbps) and full (12Mbps) speed modes of...

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Posted in app notes | 1 Comment »

Nifty USB LED light

Tuesday, July 7th, 2015

Isonno writes, "One of the hit discoveries of Hacker Camp 5 were these little USB lights. Plugs in either way, and you turn on/off/dim by touching the back. Turns out the show is run by a chip called the Sigma SGL8022W. The datasheet has the schematic." Via the forum.

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Posted in USB | 2 Comments »

DirtyPCBs based project: Isolated USB Serial Interface

Wednesday, June 24th, 2015

Steve Rodgers just completed another project using a DirtyPCB order, an isolated USB serial interface, that is available at Github: Here is another project I just completed using a Dirty PCB order. It's an isolated serial port using the CH340G chip and 4 Silicon Labs Si8410 digital isolators. Isolating the...

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Posted in DirtyPCBs.com | No Comments »

App note: Introduction to USB Type-C

Thursday, June 11th, 2015

Microchip's App note on USB Type-C cable. PDF is here The USB-IF has secured the ubiquitous nature of USB for years to come with the radically updated USB Type-C connector. While the sleek new reversible form factor has been significant for generating buzz and excitement from the general consumer market,...

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Posted in app notes | No Comments »

The CANable: a small USB to CAN adapter

Wednesday, June 3rd, 2015

Ethan of Protofusion writes: The CANable is a hardware clone of Eric Evenchick’s CANtact project, an open-hardware USB to CAN adapter compatible with socketcan. I took his design and reworked the hardware to be a bit more suitable for my personal needs, with a screw terminal instead of a DB9 connector...

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Posted in open source | 1 Comment »

App note: USB device design checklist

Sunday, January 4th, 2015

Application note(PDF) on the design of various USB controllers from Microchip. The purpose of this application note is to provide a list of items that need to be considered when designing systems that incorporate the following categories of Microchip USB products: -USB 2.0 Hubs -USB 3.0 Hubs -Flash Media Controllers...

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OneRNG – an open source entropy generator

Wednesday, December 24th, 2014

Moonbase Otago is pleased to announce its Kickstarter campaign for OneRNG - an open source hardware entropy generator: OneRNG is a USB key in the same form factor as a USB flash drive, it's an entropy generator, it makes random bitstreams suitable for feeding to your computer's encryption systems to...

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Posted in open source, USB | 3 Comments »

DIY USB-Oscilloscope in a matchbox

Thursday, October 16th, 2014

ajoyraman posted a tutorial on how to make a DIY USB-matchbox oscilloscope,  an instructable here: In order to economize on the cost of an enclosure while still providing an aesthetic unit the Aj_Scope2 is enclosed in a large size cardboard matchbox enclosure. The USB connection to the PC is on...

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Posted in DIY, oscilloscope | No Comments »

GPIBUSB Adapter update

Tuesday, July 8th, 2014

Another update on Scasagrande's project, GPIBUSB Adapter rev4: After working closely with a few individuals it was discovered that some of the pre-existing GPIB software (such as KE5FX's tools) has some hardcoded serial port settings, one of which being the use of hardware flow control. After getting builds of the software...

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Posted in open source, USB | 2 Comments »

Digispark Pro – tiny, Arduino ready, USB and mobile dev board

Thursday, April 24th, 2014

Ihsan informs us of Digitstump’s  inexpensive, tiny Arduino IDE ready, USB and mobile dev board, the Digispark Pro: Serial over USB debugging, USB programmable, 14 i/o, SPI, I2C, UART, USB Device Emulation, Mobile Development Ready, Optional BT, BLE, Mesh, and Wi-Fi. The super small, dirt cheap, always open source, Arduino compatible, USB...

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Posted in Arduino, dev boards | 1 Comment »

Tear down of a cheap external USB battery

Thursday, April 3rd, 2014

cpldcpu did a teardown of an external USB battery: The device has a USB micro-b socket which is used as 5V input for charging, and a normal USB-A socket as 5V output. The output power can be turned off and on by a toggle button. There are LEDs to indicate active power...

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Posted in Teardowns | 1 Comment »

Open source hardware GPIB USB adapter update

Monday, March 17th, 2014

Steven Casagrande posted an update on his open source hardware GPIB USB adapter: After many days, I just finished off firmware version 5 for my adapter. This is probably my biggest update yet. A lot of people asked for compatibility with the Prologix commands so that's what I focused on. Here...

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Posted in open source | 3 Comments »

USB Wrapper project

Tuesday, March 11th, 2014

scasagrande has designed this USB wrapper project, that is available at Github: Have you ever wanted to charge your smartphone by using your computer, but you didn't want all of your sync software to load? Maybe you want to use a friend's computer but you don't really want Windows to start trying to...

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Posted in open source | 11 Comments »

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