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plasma
Guru

Joined: 08/04/2012
Location: Germany
Posts: 437
Posted: 06:34am 12 Apr 2014
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have micromite no solution for sending ir commands ?
 
WhiteWizzard
Guru

Joined: 05/04/2013
Location: United Kingdom
Posts: 2817
Posted: 07:52am 12 Apr 2014
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Hi plasma,

Page 16 in the manual talks about sending IR commands:

Infrared Remote Control Transmitter
Using the IR SEND command you can transmit a Sony compatible infrared remote control signal. This could be used to control a Sony product or communicate with another Micromite.
The circuit on the right illustrates what is required. The transistor is used to drive the infrared LED because the output of the Micromite is limited to about 10mA. This circuit provides about 50mA to the LED.
To send a signal you use the command:
IR SEND pin, dev, cmd
Where pin is the I/O pin used, dev is the device code to send and key is the key code. Any I/O pin on the Micromite can be used and you do not have to set it up beforehand (the IR SEND command will automatically do that).


Note that the modulation frequency used is 38KHz and this matches the common IR receivers (described in the previous page) for maximum sensitivity when communicating between two Micromites.

For everything Micromite visit micromite.org

Direct Email: whitewizzard@micromite.o
 
plasma
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Joined: 08/04/2012
Location: Germany
Posts: 437
Posted: 12:31pm 12 Apr 2014
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thanks whitewizzard , no its time to test .

thx again
 
Lou

Senior Member

Joined: 01/02/2014
Location: United States
Posts: 229
Posted: 03:37pm 12 Apr 2014
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plasma,

I hooked the IR LED up directly to a port line in series with a 220 ohm resistor instead of using the transistor circuit. You may not get much range but if you're just testing that is quick and easy, and it does work. I had two uMites talking back and fourth right after Geoff put in the IR transmit function.

Lou
Microcontrollers - the other white meat
 
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