NIS-CO2 Gas Sensor - Revision history

Arl: /* Downlink Frame format */

2021-02-10T17:06:37Z

‎Downlink Frame format

Arl: /* Uplink data Frame format */

2021-02-10T16:53:09Z

‎Uplink data Frame format

Arl: /* Uplink data Frame format */

2021-02-10T16:50:38Z

‎Uplink data Frame format

Arl at 10:14, 21 June 2018

2018-06-21T10:14:46Z

Arl at 10:09, 21 June 2018

2018-06-21T10:09:35Z

Arl at 10:08, 21 June 2018

2018-06-21T10:08:57Z

Arl: /* CO2 Gas sensor properties */

2018-06-21T10:07:34Z

‎CO2 Gas sensor properties

Arl: Created page with " Load Cell Sensor = General information = {{:NIS Overview}} = Mechanics = * Dimensions 60 x 95 x 85mm (109mm includin..."

2018-06-21T10:06:50Z

Created page with " thumb|400px|Load Cell Sensor = General information = {{:NIS Overview}} = Mechanics = * Dimensions 60 x 95 x 85mm (109mm includin..."

New page

[[File:.png|thumb|400px|Load Cell Sensor]]

= General information =
{{:NIS Overview}}

= Mechanics =
* Dimensions 60 x 95 x 85mm (109mm including fixing brackets)
* 96mm spacing between brackets
* IP 65
* Solid ABS & PC material

= CO2 Gas sensor properties =

* 0 to 5000ppm ± 50ppm
* Humidity Range 0 to 95% rh non-condensing
* Sensor Temperature Range -20°C to +50°C

= Magnetic Switch Protocol description =
{{:NIS Generic Magnetic Switch Protocol}}

= Radio frames description =
{{:NIS Generic Application Protocol}}

== Uplink data Frame format ==

The uplink payload contains multiple fields: <mask>: bit field on 1 byte indicating the presence of other fields. Bit 7 is always to 1 because the mask is never extended on next byte.

Some examples (in hexadecimal):

“820119”: the frame indicates

== Downlink Frame format ==

The sensor configuration contains the following fields:

<up_frame_mask>: the mask identifying the different fields present in uplink frames (possible values are described in “Uplink data Frame format” section)

The downlink frame has the following format:

<cmd>: 1 byte containing WRITE_CFG_CMD=0x02

== Power consumption ==

Power consumption calculator based on the number of measurements and transmissions.

TBD

@@ Line 51: / Line 51: @@
 if (mask.bit1 == 1) :
-     <analog_meas>: 2*<nb_meas> bytes containing the analog measure values in mV or µA. Each measure value is a signed integer on 16 bits in big endian [-32768..+32767].
+     <analog_meas>: 2*<nb_meas> bytes containing the analog measure values in ppm. Each measure value is a signed integer on 16 bits in big endian [-32768..+32767].
 if (mask.bit2 == 1) :

@@ Line 19: / Line 19: @@
 * Temperature compensation
-[File:CO2 temp compensation.png|thumb|400px|CO2 linearization]
+[[File:CO2 temp compensation.png|400px|CO2 linearization]]
 = Magnetic Switch Protocol description =

@@ Line 19: / Line 19: @@
 * Temperature compensation
-[File:.png|thumb|400px|CO2 linearization]
+[File:CO2 temp compensation.png|thumb|400px|CO2 linearization]
 = Magnetic Switch Protocol description =

@@ Line 83: / Line 83: @@
      <up_frame_mask>: the mask identifying the different fields present in uplink frames (possible values are described in “Uplink data Frame format” section)
 The downlink frame has the following format:
@@ Line 88: / Line 100: @@
 <cmd>: 1 byte containing WRITE_CFG_CMD=0x02
 == Power consumption ==

@@ Line 29: / Line 29: @@
 == Uplink data Frame format ==
-The uplink payload contains multiple fields: <mask>: bit field on 1 byte indicating the presence of other fields. Bit 7 is always to 1 because the mask is never extended on next byte.
+The uplink payload contains multiple fields:
 Some examples (in hexadecimal):
-     “820119”: the frame indicates
+     “8A013A0A”: the frame indicates one analog measurement of 314ppm, with an internal temperature of 10°C.
 == Downlink Frame format ==

@@ Line 1: / Line 1: @@
 <!-- [[Category:Sensors]] -->
-[[File:.png|thumb|400px|Load Cell Sensor]]
+[[File:.png|thumb|400px|CO2 Gas Sensor]]
 = General information =
@@ Line 18: / Line 18: @@
 * Sensor Temperature Range -20°C to +50°C
 * Temperature compensation
 = Magnetic Switch Protocol description =