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1  Using Arduino / Sensors / Re: 2 arduinos listening to a single Onewire sensor on: December 28, 2013, 02:39:43 am
If you look  at the datasheet on page 9, Fig. 10 shows the connection to one microcontroller. A second one can be connected in parallel if one is the master and signals the other micro that he can have the com-channel. The second one give then an acknowledgement to the master. So the two micros have to synchronize themselves via two IO-pins to avoid a bus conflict. After reset the micros IO-ports are usually in input mode and you can look at the check-list for interfacing in this application: http://ichaus.biz/wp1_mcu_interface  on page 2.
2  Using Arduino / General Electronics / Re: Security for Arduino. on: December 17, 2013, 05:04:44 pm
There is an example of an universal I/O board based for up to 24V I/O and analog input on the iC-JX build for Raspberry:

http://www.raspberrypi.org/phpBB3/viewtopic.php?t=9556&sid=a98d84943f7db20dd53348135d463765  it is SPI based.

Robust interfacing application hints: http://www.ichaus.de/wp1_mcu_interfacesmiley-red
3  International / Français / Re: Interfaçage 24V dc on: December 27, 2012, 08:22:49 am
Bonjour, ceci est un rapport d'application pour les interfaces 24V: http://www.ichaus.biz/wp1_mcu_interface .
Bonne année
4  Using Arduino / Sensors / Re: Hall effect sensor: the right solution to track very small distance variations ? on: December 27, 2012, 08:10:17 am
Linear hall sensors , like the HAL 1820 from Micronas, could be used. External magnetic field will however change the measurement results if large enough. Maybe also a hall encoder like the iC-MA from iC-Haus in the analog mode (http://www.ichaus.biz/upload/pdf/MA_datasheet_B3en.pdf ).

5  Using Arduino / Sensors / Re: Angle sensor for the bicycle handlebar? on: November 30, 2012, 01:55:41 pm
More alternatives!

Here are some interesting applications as well: http://www.edn.com/article/470153-Speed_acquisition_made_simple.php or http://www.ichaus.biz/appnote_magneticsensors .
6  Using Arduino / General Electronics / Re: Vcc can power device, but digital out pins can't? on: November 02, 2012, 02:52:42 am
With integrated laser driver IC it is straight forward to driver laser diodes. Here you find many applications: http://www.ichaus.biz/appnote_laser or http://www.ichaus.biz/Whitepaper .
7  Topics / Robotics / Re: Qaudrature Encoders, DC Motors ..Issue on: November 02, 2012, 02:43:31 am
If the encoder AB-signals are processed in software which is not running in real time, you might have to look for a hardware interface doing the counting. Another option could be jitter of of the encoder AB-signals, which the software can't catch. You can find hardware interfaces for incremental encoder here: http://www.ichaus.biz/MD
8  Using Arduino / Sensors / Re: Multiple Encoders on: November 02, 2012, 02:27:44 am
Multiple encoder interfacing can easy dome with the iC-MD special interface. It include three 16-bit counter channel and application are available here: http://www.ichaus.biz/wp2_simple_measurement.

9  Using Arduino / General Electronics / Re: Hall effect sensors on: October 21, 2012, 04:03:53 pm
Hi
,

maybe a smarter solution then using a reed switsch(problem contact bouncing at higher speed) is using a Single-Chip-Encoder, like the iC-MH/MH8, and measure the change between two absolute position readings from the magnetic rotary encoder, or the time between two zero pulse. You might look at this two application: http://www.ichaus.biz/wp2_simple_measurement and http://www.ichaus.biz/wp_boost_performance .

Enjoy your project work!
10  International / Deutsch / Re: Dreh- Fräsbank genau steuern mit Hallgeneratoren on: October 21, 2012, 01:05:32 pm
Hallo Gerd,

der Link get auf die Home Page und unter Rubrik "Projekte" ist es das Dritte in der Liste. Der Titel ist "Geber für Brushless-Motor mit iC-MH8" und falls Du es nicht findenst geht es mit dem Titel über Google auch.

Gruß MSP-Fan

11  International / Deutsch / Re: Dreh- Fräsbank genau steuern mit Hallgeneratoren on: October 20, 2012, 05:26:51 pm
Hallo

Der iC-MA und iC-MH8 verwenden Hall-Brücken und unterdrücken externe magnetische Felder die auf alle 4 Sensoren gleich wirken. Hier gibt es vom iC-MH auch einen kompletten Encoder Entwurf mit Layoutdaten: http://www.gb97816.homepage.t-online.de/ und was die Zählgeschwindigkeit des Mikrocontroller angeht gigt es hier eine Applikation: http://www.ichaus.biz/wp2_encoderanschluss .

Gruß  MSP
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