Blog J.Schweiss

Infosammlung zu .NET- Programmier-Themen & Elektronik

ESP8266 & Azure Eventhubs in Node

clock Februar 22, 2017 03:39 by author Administrator

Internetting all the Things with ESP8266 and Azure Event Hubs

Getting Started


Stream Analytics

SPI Levelshift

clock Juli 16, 2016 07:18 by author Administrator

Design here

Sampling Rate

clock Juli 15, 2016 06:21 by author Administrator



better arduino debugging

clock Februar 9, 2016 15:16 by author Administrator

using printf with this ref


Where the specifier character at the end is the most significant component, since it defines the type and the interpretation of its corresponding argument:

specifier Output Example
d or i Signed decimal integer 392
u Unsigned decimal integer 7235
o Unsigned octal 610
x Unsigned hexadecimal integer 7fa
X Unsigned hexadecimal integer (uppercase) 7FA
f Decimal floating point, lowercase 392.65
F Decimal floating point, uppercase 392.65
e Scientific notation (mantissa/exponent), lowercase 3.9265e+2
E Scientific notation (mantissa/exponent), uppercase 3.9265E+2
g Use the shortest representation: %e or %f 392.65
G Use the shortest representation: %E or %F 392.65
a Hexadecimal floating point, lowercase -0xc.90fep-2
A Hexadecimal floating point, uppercase -0XC.90FEP-2
c Character a
s String of characters sample
p Pointer address b8000000
n Nothing printed.
The corresponding argument must be a pointer to a signed int.
The number of characters written so far is stored in the pointed location.
% A % followed by another % character will write a single % to the stream. %


clock Februar 5, 2016 06:20 by author Administrator



clock November 23, 2015 06:17 by author Administrator



  • ESP8266 MQTT Publication & External Subscription
  • Plugin Free WordPress Bootstrap
  • ESP8266 Dual AT & Web Server Mode
  • ESP8266 Free Space Assessment
  • Capturing ESP8266 Max Value on ThingSpeak
  • How to test ASP.NET files locally
  • How To Unbrick FTDI Based Arduino Nano
  • Linux Programming Without Installing Anything
  • Expanding Arduino Serial Port Buffer Size
  • IR Remote Using ESP8266
  • Mobile Weather Sensors Using ESP8266 – Phase 5: Ant+ Heart Rate Monitor
  • Mobile Weather Sensors Using ESP8266 – Phase 4: Mobile App Gadgets
  • Mobile Web Sensors Using ESP8266 – Phase 3: Google Map Visualizations
  • Mobile Web Sensors Using ESP8266 – Phase 2: Data Recorder
  • ESP8266 Amazon Web Service (AWS) API
  • Mobile Weather Sensors Using ESP8266
  • ThingSpeak Channel Data With More Than 8 Fields
  • Native Android App Development Using Only HTML-Javascript-CSS
  • Compiling ESP8266 Legacy App with SDK 1.1.1
  • ESP8266 WIFI dropout-proof connectivity
  • A cleaner ESP8266-12 hardware setup
  • 8 ESP8266 analog inputs for 22 cents
  • My ESP8266 Controlled Temperature Sensors now on ThingSpeak
  • What to do when ESP8266 will not flash
  • Using Javascript AJAX to read ESP8266 data
  • Using DDNS with port forwarding to access Internet connected things
  • Using php to read ESP8266 data
  • A Tiny Footprint ESP8266 Arduino IDE JSON Encoder
  • Porting Spark Core Weather Sensor IoT to ESP8266-12
  • Issues with the ESP8266 Arduino IDE
  • 4 reasons I abandoned NodeMCU/Lua for ESP8266
  • Why I stopped using the ESP8266 SDK
  • 4 ways to eliminate ESP8266 resets
  • Using ESP8266 with Arduino IDE 1.6.1 and BMP085 library
  • Getting Started with the ESP8266-12
  • ESP8266 Power and Serial Interface
  • Adding Contact Form Icons
  • Shortening Domain URLs
  • Opaque Background Captions with Movie Maker
  • Web code to download a file
  • GMT to Local Time

  • MQTT

    clock November 23, 2015 06:14 by author Administrator


    ESP8266 and FHEM

    clock Oktober 18, 2015 21:47 by author Administrator



    ESP User Manual




    Zu GPIO:

    Zu Device-Tree:

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