Note: I may move all the LED project discussion to a different thread.
Anyway, back to this particular testing, have updated my python test script a tiny bit:
Code:
macos$ cat ard1.py
import serial
import pathlib
device = "/dev/cu.usbserial-40"
file = pathlib.Path(device)
if file.exists() == False:
print("Arduino Device "+device+" Does Not Exist")
else:
ser = serial.Serial(device, 9600)
while True:
cc = str(ser.readline())
print(cc[0:][:-1])
Hi all...
(Apologies for any typos at all.)
This is a step by step _script_ to check if your Arduino is talking to your Linux or Macbook Pro computer using the Terminal...
It works on at least 3 Linux flavours and now the Macbook Pro...
I hope you find it useful as a simple check for... (0 Replies)
This is a very simple starter DEMO to access Arduino Diecimila Board for the
Macbook Pro 13" OSX 10.7.5...
A potentiometer is connected between 5V and Gnd with the wiper connected to
ANALOG IN 0 on the Arduino. This was adjusted to give the Ms and Ls as seen...
I now have DC in for this... (0 Replies)
I am working on a semi-auto detection idea for Arduino for the Scope project.
It does require a little user intervention but minimal.
It works by just responding to two on screen prompts to unplug and plug Arduino
into a USB port.
There are two versions and both work perfectly well and give... (3 Replies)
In my further exploration of Arduino, today I decided to install the arduino-cli on my mac today.
https://github.com/arduino/arduino-cli
I followed the instructions for macOS but when I got to this part:
arduino-cli board list
I got the dreaded "Unknown" Fully Qualified Board Name... (1 Reply)
HI all...
(Apologies for any typos.)
To add to Neo's Arduino subject matter I have decided to upload this in ".zip" format.
Ignore "*.info" files these are AMIGA icons only and also the "HAM" drawer as these are photos in ancient AMIGA HAM modes.
I have noticed that there are current... (6 Replies)
Waiting for more fun Ardunio parts from AliExpress, I decided to test two cheap Chinese Arduino UNO clones.
The Arduino UNO R3 (CH340G) MEGA328P
The Wavgat UNO R3 (CH340G) MEGA328P
Both of these Chinese Ardunio clones sell for about $3 USD, delivered to your door.
The bottom line is... (0 Replies)
Just finished a quick Python script to send the current unix time over to the Arduino from macOS, so in the absence of GPS or some other way to get the unix timestamp (epoch time) to the Arduino, I can get my macOS and Arduino UNO synced to within a second.
Normally, when the Arduino starts... (9 Replies)
Here is a sketch to do basic testing for the Arduino UNO and the MLT-BT04.
This BLE module works with IOS (iPhone) and I'll add some details on my IOS testing with an iPhone in a follow-up post.
For now, here is the basic BLE (HM-10) sketch for the Arduino UNO:
/*
Arduino test-code... (7 Replies)
Discussion started by: Neo
7 Replies
LEARN ABOUT NETBSD
bio
BIO(4) BSD Kernel Interfaces Manual BIO(4)NAME
bio -- Block IO ioctl tunnel pseudo-device
SYNOPSIS
pseudo-device bio
DESCRIPTION
The bio driver provides userland applications ioctl(2) access to devices otherwise not found as /dev nodes. The /dev/bio device node oper-
ates by delegating ioctl calls to a requested device driver. Only drivers which have registered with the bio device can be accessed via this
interface.
The following device drivers register with bio for volume management:
arcmsr(4) Areca Technology Corporation SATA RAID controller
cac(4) Compaq RAID array controller
ciss(4) Compaq Smart ARRAY 5/6 SAS/SATA/SCSI RAID controller
mfi(4) LSI Logic & Dell MegaRAID SAS RAID controller
The following ioctl calls apply to the bio device:
BIOCLOCATE Locate a named device and give back a cookie to the application for subsequent ioctl calls. The cookie is used to tunnel
further ioctls to the right device.
BIOCINQ Retrieve number of volumes and physical disks for a specific device.
BIOCDISK Retrieve detailed information for the specified physical disk. Information returned can include status, size, channel,
target, lun, vendor name, serial number, and processor device (ses).
BIOCDISK_NOVOL Is just the same as BIOCDISK but doesn't require the disks to be in volume sets, so this applies to any physical disk con-
nected to the controller.
Note: this ioctl might not be supported on all hardware.
BIOCVOL Retrieve detailed information for the specified volume. Information returned can include status, size, RAID level, number
of disks, device name association (sd?) and vendor name.
BIOCALARM Control the alarm beeper on the device. Supported states are: disable alarm, enable alarm, silence alarm, status and test
alarm.
Note: These options might not be supported on all hardware.
BIOCBLINK Blink an LED of the specified physical disk. Supported blink states are: blink LED, unblink LED and blink alarm LED.
Note: This option is only supported if the disk is governed by ses(4) and the hardware supports hardware blinking.
BIOCSETSTATE Alter the state of specified physical disk. Supported states are: create/remove hot-spare, create/remove pass through
disk, start/stop consistency check in a volume, online disk and offline disk.
Note: These options might not be supported on all hardware.
BIOCVOLOPS For operations in volume sets. It's able to create and remove a volume set in a supported RAID controller.
Note: this ioctl might not be supported on all hardware.
FILES
/dev/bio ioctl tunnel device
SEE ALSO ioctl(2), bioctl(8)HISTORY
The bio driver first appeared in OpenBSD 3.2 and NetBSD 4.0.
AUTHORS
The bio driver was written by Niklas Hallqvist <niklas@openbsd.org>. The API was written by Marco Peereboom <marco@openbsd.org> and was
extended even more for NetBSD by Juan Romero Pardines <xtraeme@netbsd.org>.
BSD May 25, 2008 BSD
12-19-2019
