- #Arduino usb host shield lib serial#
- #Arduino usb host shield lib drivers#
- #Arduino usb host shield lib driver#
- #Arduino usb host shield lib software#
#Arduino usb host shield lib drivers#
Sick of rolling back drivers only to have them auto-update and unreliable quirks when attempting to lock the drivers, I resorted to using a newer U1173B lead which works fine.
#Arduino usb host shield lib driver#
I noticed in 2017 that the adapter wouldn’t work under Windows 10 due to Prolific’s driver changes even though an older version of the driver did work. Getting a connection to a PC is pretty easy (in theory) using the USB to IR lead, however the grey U1173A version comes with a trap which I wasn’t aware of when I purchased the lead – it uses a old PL-2303X chip.
While there’s very little to configure, often all you want is to grab readings from the DMM and that’s not all that difficult with the FETC? or READ? commands (both are equivalent).
These are not officially documented, but Sigrok has a good summary of most of the commands. It is no great secret that the Keysight handheld DMMs actually use a bastardised version of SCPI commands. Sometimes, I find myself needing an extra measurement device here or there, but not having the budget nor inclination to purchase a benchtop DMM just to get that capability, I set off to make the Keysight handheld DMMs I have a little more useful. Support on mobile seems to have dwindled slightly as well, with warnings about incompatibilities when running on more modern devices.Īs a test and measurement user, I have grown dramatically both in skill and in needs and running multiple-instrument tests is no longer a dream – it’s my everyday reality. due to low battery) and an attempt is made to stop the log.
#Arduino usb host shield lib software#
Unfortunately, the software has become quite dated and have some frustrating limitations and quirks, one of which includes loss of recording data on the PC if the Bluetooth connection fails (e.g. These handheld DMMs have served me well, with one of the drawcards being the Keysight Handheld Meter Logger software which allows logging on PC via USB or both PC and mobile via Bluetooth. In the intervening years, I also ended up with a Keysight U1242B, a close cousin which has a few more features, so similar that some have unlocked the U1241B to U1242B by some EEPROM modifications. If you'd like even more details on getting started with the USB host shield, see this great tutorial.It was many moons ago when I treated myself to a proper name-brand DMM with some decent accuracy, an Agilent/Keysight U1241B complete with a U1173 USB to IR interface cable and a few other accessories. It's pretty impressive that I could just plug a shield into a piece of hardware almost a decade old, load some code on it and it just works.
#Arduino usb host shield lib serial#
I then loaded up a HID keyboard sketch, and it worked flawlessly! I was able to type letters on the keyboard connected to the shield and see them appear in the serial monitor. As part of the self-test it connects to the device and displays the USB descriptor in the serial monitor. You also need to have a USB device (like a keyboard) connected during the self-test. Note that to skip the GPIO test, you have to enter any character into the serial monitor and press Send. Also, note that there is a little power switch on the shield that you have to turn on ) On the shield, I first had to connect the D7 pin to the RESET pin. The Arduino sketch uploaded without any problems. I installed the USB Host Shield Arduino library and loaded up the board_qc self-test sketch.
This morning I wanted to see if it works, so I plugged it into my old Arduino Duemilanove, released in 2009 and still going. I managed to find the headers last week, and soldered them on at the hackspace last night. The shield doesn't come without any headers, which prompted me to start organising the electronic components I have at the Swansea Hackspace, as I knew I had a spare set of headers there. I then ordered a Sparkfun USB Host Shield from one of the UK distributors, CPC Farnell. A week ago I wrote about building a USB host to Bluetooth LE bridge.
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