In an earlier test of the AIS NB-IoT Arduino shield, I touched on the fact that the AIS 923MHz NB-IoT network tested illustrated "not the best reliability" due to spotty 923MHz cell tower penetration / coverage.
However, on the ocean side of my condo, I have improved this reliability issue a few DB (my RF power meter is not very accurate, sorry) with this antenna:
More importantly than potential antenna gain, the 923MHz NB-IoT signal is considerably more reliable after placing the antenna at the window and off my desktop (which is about 3 to 4 meters away from the window).
In addition, I have the Arduino sketch sending the message to a remote Linux server via BLE and the NB-IoT network and will post the code / sketch after I add a mini-app to get some server stats like the server load averages back to the iPhone. Just need to add a few lines of code to my test Python UDP server code and change the sketch to receive the result and display it on the iPhone.
So far, it's pretty simple (after working out the conflict between serial comm pins last yesterday).
I just moved away from a T3 line back to a dial up I just wanted to know would a P200 with 64meg and a 4 gig hard drive be ok for a linux server for an additional 3 pcs all running win98. I will be dialing into an isp using a 56k v90 modem.
Any support or help will be great. (3 Replies)
Hello all
this is general question , if i have web server installed in my local pc and i have client that connecting to that web server
can i force it always to go via the internet network ?
the reason im asking is .. that im noticed when i close my internet connection i still can connect to my... (2 Replies)
hi i have linux server connected to internet through a switch/router. i have opened a port on the router and i am able to connect to the server if iptables is off. but when it is on i cant.
i want to create a rule in iptables so that it accepts packets coming from a particular datacard. it... (7 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)
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)
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)
With a little bit of work, was able to build a nice "Wuhan Coronavirus Status" app using MQTT and the IoT-OnOff app. More on this technique here:
ESP32 (ESP-WROOM-32) as an MQTT Client Subscribed to Linux Server Load Average Messages
The result turned out nice, I think. I like the look and... (10 Replies)
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 DEBIAN
bubblefishymon
BUBBLEFISHYMON(1) General Commands Manual BUBBLEFISHYMON(1)NAME
bubblefishymon - system load meter with ducks and fish
SYNOPSIS
bubblefishymon [options] [program] [program]
DESCRIPTION
This manual page documents briefly the bubblefishymon command. This manual page was written for the Debian distribution because the origi-
nal program does not have a manual page.
bubblefishymon is a dockapp-style system monitor for CPU, memory, swap, load average and network traffic. Based on wmfishtime(1) and bub-
blemon, this program has been considerably improved over the parent code.
The higher the water level, the more memory is in use. The more profuse the bubbles, the higher the CPU usage. Fish represent network
traffic direction and speed.
When the mouse is moved into the window, the display will change to chow the load history, or, if the right Shift key is held, the current
memory usage. If you press the right mouse button, the window will freeze in that state until you move the mouse out then back into the
window.
program1 and program2 are the programs to spawn when either the left or middle mouse buttons are pressed, respectively.
OPTIONS -d disable swimming duck.
-u disable upside-down duck.
-f disable fish.
-c disable CPU meter.
-m disable memory screen.
-p use alternate colour scheme in memory info screen.
-k display memory and swap statistics in megabytes.
-n[iface]
fish represents network traffic [on <iface>].
-t draw the clock too.
-h display help.
SEE ALSO wmbubble(1)bubblemon-gnome1(1)AUTHOR
This manual page was taken and adapted from wmbubble by Gurkan Sengun <gurkan@linuks.mine.nu>, and modified for the Debian system by Jamie
Wilkinson <jaq@debian.org>. The original manual page for wmbubble was written by John H. Robinson, IV <jaqque@debian.org> for the for the
Debian GNU/Linux system (but may be used by others).
September 6, 2002 BUBBLEFISHYMON(1)