Re: [Paparazzi-devel] how to use 4 temperature sensor simultaneously

[Refik Sever]

Hi Eduardo and Heinrich,
Thank you very much for your help. 
Best regards,
Refik


>Message: 2
>Date: Sun, 7 Jul 2013 18:57:11 -0300
>From: Eduardo lavratti <address@hidden>
>To: Paparazzi developer forum <address@hidden>
>Subject: Re: [Paparazzi-devel] how to use 4 temperature sensor
 >       simultaneously
>Message-ID: <address@hidden>
>Content-Type: text/plain; charset="iso-8859-1"
>
>you dont need to use gpio?s... only need i2c bus pins.
>
>Each lm75 need a different address configuration (a0~a2) and all are connected 
>to i2c buss.
>I not analyzed the lm75 driver but i think you need to modify them to used 
>more than one sensor.
>So, you need to make a new message that output the temperature of all sensors.
>Its easy to do.
>

>From: address@hidden
>To: address@hidden
>Date: Sun, 7 Jul 2013 21:12:19 +0000
>Subject: [Paparazzi-devel] how to use 4 temperature sensor simultaneously
>






>Hi,
>
>
>
>I need to use 4 temperature sensor simultaneously . I saw the LM75 and TMP102 
>in the modules list. Can I use 4 >of them on the same I2C bus?
>
>
>
>In the datasheet of LM75, it is written that 8 of them can be connected to the 
>same I2C bus using 3 address pins. >Do I need to use 3 GPIO's of 
>umarim_lite_v2 for that purpose?  Does anybody wrote codes for that? Do you 
>>recommend any other solution?
>
>
>
>Regards,
>
>Refik



>Message: 3
>Date: Mon, 08 Jul 2013 09:21:45 +0200
>From: "Prof. Dr.-Ing. Heinrich Warmers" <address@hidden>
>To: address@hidden
>Subject: Re: [Paparazzi-devel] how to use 4 temperature sensor
>        simultaneously
>Message-ID: <address@hidden>
>Content-Type: text/plain; charset="iso-8859-9"; Format="flowed"
>
>Hi Redk,
>you can use 8 of this sensors one the same  i2c bus.
>Lock at the figure 3 on page 6 of the data sheet.
>You don't need output pins for setting the 3 bits of the base address.
>This can by done only by setting the jumpers.
>The Sensor use 7 bit address information and one bit to indicate read or
>write cycles.
>This is a little bit confusing with the paparazzi i2c drivers, since
>there are different
>  macros for writing and reading (hex address of the device).
>Heinrich
>
>
>Refik Sever schrieb:
>
> Hi,
>
> I need to use 4 temperature sensor simultaneously . I saw the LM75 and
> TMP102 in the modules list. Can I use 4 of them on the same I2C bus?
>
> In the datasheet of LM75, it is written that 8 of them can be
> connected to the same I2C bus using 3 address pins. Do I need to use 3
> GPIO's of umarim_lite_v2 for that purpose?  Does anybody wrote codes
> for that? Do you recommend any other solution?
>
> Regards,
> Refik
>
>------------------------------------------------------------------------
>
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>https://lists.nongnu.org/mailman/listinfo/paparazzi-devel
>
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