Posted by kll on February 22 2013 17:28:16
my recent projects to learn about micro controller and more:

if you need a easy start for electronic / hardware pls. see this video first

Arduino+++ PICO_W use WS2812B

+++ Poor Man Scope PICO_W again

+++ what is WipperSnapper

+++ NR MQTT Local & Remote SQLite DB

+++ more hardware for MQTT project

+++ RPI3 setup for MQTT + BRIDGE

+++ Raspberry Pi PICO W advanced web server 2

+++ Raspberry Pi PICO W advanced web server

+++ Raspberry Pi PICO W

+++ Sonoff S31 switch / power-meter

+++ ONLINE Arduino

+++ sometimes need a circuit diagram

+++ ESP32C3 & RPI PICO & Display

+++ Circuit Python and RPI 2B BLINKA I2C

+++ Circuit Python and RPI PICO

+++ Arduino IDE 2.0 and RPI PICO

+++ Arduino IDE 2.0

+++ RPI, ESP, MQTT for WATT Meter


+++ Arduino teaching

+++ Processing + Video + Arduino trigger recording

+++ update: PoorManScope3 with Arduino

+++ update RPI & MQTT

+++ update RPI & Arduino

+++ ESP & Arduino

+++ ESP & OLED ( as MQTT client )

+++ ESP vs Arduino

+++ Firmata use processing...

+++ EMON power monitor revival

+++ ARDUINO.ORG M0 update 12/2016

+++ new Genuino MKR1000

+++ link to RTOS to Arduino board

+++ link to low power applications

+++ RPI arduino serial digging

+++ data collection to IoT cloude, new approach

+++ RPI and Arduino IDE & the JESSIE challenge

+++ Time and RTC libs and now also USB menu update

+++ Arduino latching relay output

+++ Arduino NEWS update 2.7.2015

+++ Arduino can MIDI?

+++ Arduino Battery Loading / UPS / emergency LED light

+++ Arduino debug tips

+++ Arduino DUE ( or MEGA) as a Process Control System

+++ Arduino - RPI - PID faceplate + current trend + tune

+++ Arduino USB MENU update incl. RTC

+++ Arduino & ATLAS water monitoring II

+++ Arduino and RFID test

+++ Arduino DUE is it a ferrari?

+++ Arduino and power mosfet

+++ workplace setup

+++ Arduino signal generator

+++ and PoorManScope3

+++ Arduino TEST BENCH + processing 3.5D graph / data CSV file

+++ Arduino + powerline

+++ WIFLY shield for EMON ( records to web database)

+++ touch LCD for EMON

Raspberry PI
we all know how to get our info for play with raspberry pi - RPI homepage with forum and blog and tutorials
- internet search
- look YouTube video
- get news via social media like g+
* * now today i want you to take a look at a also very interesting media: free online magazines
this model comparison helps too

NOTE: in my BLOG about RPI i write down every command ( in bold )
if you work like me use "putty" / "bitvise SSH client" for headless operation
you can copy paste all that commands from BLOG to PUTTY window, what allows a very fast working style.

i like the new video at RPI, but a overview poster would be also good, so i make a design

+++ RPI PICO link summary

+++ MQTT cloud

+++ serial terminal TIO

+++ MkDocs site creator

+++ BUN not NODE

+++ RPI 64bit Processing 4.0 b8 test

+++ RPI working environment


+++ RPI 64bit OS 'ARMBIAN'

+++ is NOOBS still a thing?

+++ RPI new OS 'Bullseye'

+++ RPI4 as Chrome Book

+++ RPI4 Manjaro Arch Linux

+++ RPI Julia language

+++ RPI GO language / failed about GoTTY

+++ RPI RUST language



+++ CMS?framework for RPI Node server


+++ RPI-Chrome-Book

+++ RPI-Processing P5.js-GITLAB

+++ Raspberry Pi build Processing

+++ Raspberry Pi 4

+++ "C language" for beginner on Windows 10 & Raspberry Pi

+++ RPI_export

+++ P5.JS online editor / game tutorial

+++ RPI Node P5.JS

+++ RPI Processing Video

+++ RPI SAMBA to WIN 10 PC

+++ RPI test Processing again

+++ RPI use MQTT


+++ Python3 Signal Filter and Line Chart

+++ SD card check

+++ Image Backup

+++ Raspbian Desktop tweaks

+++ BASH colors and new scripts UPDATE 04/2018

+++ web site, mini blog, flask, flaskr, sqlite, html5up UPDATE 05/2018

+++ Python / SONIC THEREMIN emulation

+++ ASM on RPI??

+++ industrial control system

+++ WEB SERVER with Raspbian STRETCH

+++ move to Raspbian STRETCH

+++ RPI3 and CAM ( USB + RPI ) ++ tools


+++ webserver php-fusion 9 CMS

+++ USB boot

+++ RPI CH IDE ( C / C ++)

+++ RPI password reset

+++ autostart

+++ RPI and python 3D programming

+++ RPI and NODE new frameworks

+++ RPI OS on PC

+++ RPI to learn GUI programming update QT5

+++ old RPI but new camera setup

+++ RPI's new desktop

+++ MEAN stack

+++ RPI update

+++ RPI webserver project: QUEUE

+++ RPI ONLINE update 18-02-2017

+++ JESSIE beta?

+++ processing 3 - -

+++ some admin work

+++ NOOBS "very headless" setup

+++ data collection to IoT cloude, new approach

+++ PMS3 on RPI and Arduino

+++ my new RPI 2

+++ RPI and Arduino IDE

+++ RPI headless working tips

+++ learn linux by using DEBIAN on desktop PC too

+++ RPI to learn GUI programming update download zip 25.8.2015

+++ RPI System Update, Berryboot retest

+++ RPI Python PYGAME Sound Synth

+++ RPI Install script

+++ RPI webserver myDYNDNS

+++ RPI play MATHEMATICA & SONIC and more sound tools


+++ RASPBERRY PI with ARDULINK to arduino ( mega)

+++ RASPBERRY PI with very small linux version

+++ RASPBERRY PI with arduino and processing IDE and test PMS3 with it


+++ restart RASPBERRY PI

PHP-Fusion CMS+++ php-fusion backup, site copy ..

+++ play with SVG and PHP to create a WEB FONT
and have [insert_php] text_svg('a good time',70,'#ff0000','#ffee00','#ffeeff','','gradient'); [/insert_php]

+++ USB stick multiboot linux

+++ BUDGET PC build

+++ LED household lamps

+++ PC + Chrome Browser + NODE NEXT IDE

+++ reuse old PC PS

+++ win PC maleware

- go articles to find all my BLOG,
- use more-> to read my story
Extended News
my hobby

while i worked for money ( as most of us have to do )
i sell, designed, configured, tested, trained on
DCS Distributed Control Systems ( or Process Control Systems )
for many years, in many countries, living in dirty hotels and work on horrible construction sites, training
- ex rice farmers to run a chemical production plant.
- and electricians to do instrumentation, computer and networks
- and windows game specialists to keep the computer system running.

but the engineering work i loved, so now retired i found i still do the same work,
just as a hobby.
ok, the computer equipment is smaller / from room size to palm.

micro controller:
in this political and economic hard times still sometimes can see a development to the good.
while for micro controller ( in the price range 1 .. 10 US$ ) the development system
you needed to configure them was some thousand $,
now a easy and cheap ( learning ) entry is possible.
the controller on a board with many ways to expand hardware,
incl. free development software for linux and windows, just connect by USB
starts with USD 16 at original arduino store!

for detail of my projects with arduino, but also other controller stm32, max32
and even SBC Single Board Computer Raspberry PI
see more about at article and download section.

most projects or tests use arduino and some shields ( add on boards )
but may also include a little bit electronic, like opamp amplifier...
i also build my own arduino boards,
just go from breadboard test

to prototype board ( with copper stripes on the back ),

as all this is far from production, never need more than 2 of them, i don't make PCBs.

working with arduino IDE:
sketch sharing
using a old desktop ( and sometimes the new laptop ) i installed google drive (5GB space) software,
both look same google account.
i adjusted the arduino preferences to a path in ( local) google drive, the google drive
software does the sync with the google drive in cloud. when i use the other computer
its local drive is also synced and i have always the newest sketch version to work on.
so actually the file is stored in 3 places and working offline / when i am with the laptop at a beach restaurant without WIFI / also possible. cloud only stored solutions are not so good,
( instead of google also can use UBUNTU ONE (5GB space) . -- finished 2014)

for a current teamwork in the test phase of a project i can share a copy / path with collaborators.

startproblem IDE:
recently i had problems with arduino IDE, got the error msg "Launch4j"
- i first updated a older and the newest arduino by delete and unzip .
- then i found out there is no JAVA on that laptop
* install JAVA
- because its win 7 64bit i learned that i have to install
then i found the info that i have to delete the file /Arduino/preferences.txt
the path for this you do at the very first start.

i still don't know what had happened, i remember last week was a
JAVA update, what possibly went wrong???

i can only recommend to change Arduino setting for editor font.
the "lL10Oo" with the default i not see the difference of 1 and l,
what easy leads to typing errors.
-1- close IDE
-2- copy ?/Arduino/preferences.txt to
-3- edit preferences.txt
-- line 11 editor.font=DejaVu Sans Mono,plain,14 //or other font or size
-- line 78 editor.antialias=true
-- save
-4- start IDE and check editor window.