Tous les articles par F4HUY

Domotic

How to use Tenvis MINI319w IP Camera with Synology surveillance station

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I have recently got a IP camera called « MINI319w », costs around 35~40€, it’s a network camera with 21-LED IR night vision, plus Ethernet/Wifi support:

Sensor Type CMOS
Sensor Size 40912
Pixel 300KP
Lens 4.0mm
View Angle Horizontal: 57 degrees / Vertical: 49.5 degrees
Picture Resolution 640×480 (VGA) 320×240 (QVGA)
Video Compression format MJPEG
Frame rate 25fps
Input/Output Built-in Microphone & Speaker
Audio Compression format ADPCM
Minimum illumination 0.1Lux
Night vision Infrared IR LED
IR-LED Quantity 21
Night vision distance 12 meters
Motor N/A
Rotation angle N/A
Wireless / WiFi 802.11 b/g
Network Protocol TCP/UDP/IP/ARP/ICMP/DHCP/DNS/HTTP/FTP /SMTP/NTP/PPPOE/UPNP/DDNS
Online Visitor 10 viewers @320×240 4 viewers @640×480

IPCameraMore infos:  http://apps.tenvis.com/index.php?category_id=17 Continuer la lecture de How to use Tenvis MINI319w IP Camera with Synology surveillance station →

Domotic, IoT-M2M

Ardui’Home, temperature and gas alert for home

4 commentaires

Update [17/02] – Project redesigned, look this following post.

Update [2/06] – I’m working on a wireless version

I’ll move in a new apartment very soon, and i have the idea for a new domotic project, ArduiHome, a Arduino Uno, GSM/GPRS Shield, some sensors to measure temperature, humidity, and gas.

The goal of this project is to display, on a LCD, the temperature from four areas.
Sending back temperature and/or humidity value via SMS (no needed at this moment).
Send an alert when town gas or carbon monoxide reach a critical level.
Drive a relay to turn on lighting, or heating system (no needed at this moment). Continuer la lecture de Ardui’Home, temperature and gas alert for home →

Hack

Retro engineering on a pager, Tatoo Hack

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This hack, backward me in 1996/1998 during my college years, the pager system was at its peak, there was 3 commercial services and networks here, in France:

  • TamTam, the Cegetel/SFR paging services, stopped in 1999, using ERMES protocol.
  • KOBBY, from Bouygue Telecom, stopped during 2005, using ERMES/FLEX protocol.
  • TATOO, from FT/Orange, using POCSAG, the only still functioning, right now, since 2000, exploited by a Deutsch company, E-Message.

The Kobby and TamTam use VHF frequency band (Update 18/03/14 – 169,425-169,800 Mhz), and the TATOO receiver use UHF band (466.025 MHz – 466.05 MHz – 466.075 MHz – 466.175 MHz – 466.20625 MHz – 466.23125 MHz.). POCSAG protocol is basically easy to decode, with software like POC32 or PDW Continuer la lecture de Retro engineering on a pager, Tatoo Hack →

Embedded

Teensy GPS Logger

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Update 28/08/15, New version more light:

*The last and final design, the Teensy and GPS is directly powered from 3.7v li-on batt, 20 hours 5hz logging, 39g heights with IP4 box.

Update 23/07/15, New firmware, feature added:

*Logging data only when the speed is above 3 km/h
*Using var usb_configuration; to detect and enable charging automatically when the board is plugged on a computer (only pc, not Ac adapter).

Update 12/02/15, I have rewrite the sketch:

– The sketch is more clear, light and compact, 3.76ko from 5.07ko comparing old sketch.
– Use TinyGPS lib, so you can select what we want to log.
– Create a .CSV file directly, you can use import function from GoogleEarth PRO (good news, Google has released it for FREE right now).

CSV_exemple

The goal
In the past two years, i have released two version of GPS logger, with a lot of default like, poor autonomy, need to take off the sdcard to get the log, no function to upgrade the code easily, by the way, i have redesigned a new version with a lot of news feature, see bellow.

– Better autonomy.
– Be lightweight and wearable.
– Be rechargeable easily.
– Got log directly from USB.
– Upgrade code via IDE Arduino through USB.
– Future options implemented for improvement.
– Water Resistant IP4.

teenlogger

teenlogger2

Continuer la lecture de Teensy GPS Logger →