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)
A very simple Arduino board test... LOL
Here is some very easy code to test a cheap Arduino board I just got from China via Aliexpress. I am still waiting on a about 30 more orders from Aliexpress for more Arduino stuff. This was the first order which made it here.
/*
Arduino test-code... (18 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)
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)
My favorite projects are always related to the "latest" tech in command and control, networking and network communications. This Elecrow GSM/GPRS/EDGE SIM5360E 3G Shield seems to be the "latest and the greatest" as far as 3G and GPS, as far as I can see so far, but I has it drawbacks for sure.... (6 Replies)
Today I received my NB-IoT Arduino Shield for AIS (Thailand). Here is a "pinout" photo of the shield.
My shield looks just like the one above, for the most part. I'll post another photo of the actual device later.
When I received the shield in the mail, I went immediately to a local... (8 Replies)
Normally I have very good experiences buying from AliExpress, but in this case with Elecrow, I'm disappointed.
After confirming with Elecrow on AliExpress that their Elecrow GSM/GPRS/EDGE SIM5360E 3G Shield for Arduino would work with 3G SIM cards in Thailand, I purchased one. My plan was to... (1 Reply)
Normally I'm not into kits, but I thought my wife would enjoy this one since she is a big fan of robots and droids on StarWars!
We are done with the basic mechanical assembly and starting on the electronics assembly today.
The robot's "brain" consists of three levels. The Arduino board, on... (5 Replies)
Discussion started by: Neo
5 Replies
LEARN ABOUT PLAN9
attach
ATTACH(5) File Formats Manual ATTACH(5)NAME
attach, session, nop - messages to initiate activity
SYNOPSIS
Tnop tag[2]
Rnop tag[2]
Tsession tag[2] chal[8]
Rsession tag[2] chal[8] authid[28] authdom[48]
Tattach tag[2] fid[2] uid[28] aname[28] ticket[72] auth[13]
Rattach tag[2] fid[2] qid[8] rauth[13]
DESCRIPTION
The nop request does nothing overt but may be used to synchronize the channel between two service hosts initially.
The session request is used to initialize a connection between a client and a server. All outstanding I/O on the connection is aborted.
The set of messages between session requests is called a session. The host's user name (authid) and its authentication domain (authdom)
identify the key to be used when authenticating to this host. The exchanged challenges (chal) are used in the authentication algorithm.
If authid is a null string no authentication is performed in this session.
The tag should be NOTAG (value 0xFFFF) for a nop or session message.
The attach message serves as a fresh introduction from a user on the client machine to a server. The message identifies the user (uid) and
may select the file tree to access (aname). The ticket and auth arguments contains authorization data derived from the exchanged chal-
lenges of the session message; see auth(6).
As a result of the attach transaction, the client will have a connection to the root directory of the desired file tree, represented by
fid. An error is returned if fid is already in use. The server's idea of the root of the file tree is represented by the returned qid.
ENTRY POINTS
An attach transaction will be generated for kernel devices (see intro(3)) when a system call evaluates a file name beginning with Pipe(2)
generates an attach on the kernel device pipe(3). The mount system call (see bind(2)) generates an attach messages to the remote file
server. When the kernel boots, an attach is made to the root device, root(3), and then an attach is made to the requested file server
machine.
SEE ALSO auth(6)ATTACH(5)