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AQM3 Initial Setup
#1

Hi Caneira,
Attaching what I have done, sensors shown and my config file. Maybe you can help me because I have hit a brick wall and am ready to junk this project with a mark in the "fail" column.

Installed sensors:
Dust PMS7003
CO2 SCD30
Pres/Temp/Hum BE280

Power source: 5V, 700 mA (LG Cel Phone charger)

Installed Board firmware: MH ER LIVE ESP32 MiniKit.
installed the .rar file located on the forum then Arduino installed updates.
Tried setting to debug mode for dust sensor, but cannot see anything was done.
Attaching the Arduino Logs.
Connection for OLED display is there and output works (not showing CO2 or AQ Particulates values)

Coated the outside of the connections with Conformal coating for outdoor use. Made sure no coating go on male/female connectors.

I can see Pres/Hum/Temp and board vitals (elev and name on IP/aqnow). No output from the dust or CO2 sensors.

Ordered a replacement sensor and swapped out PMS7003. Still doesn't work.
.txt output.txt Size: 1,75 KB  Downloads: 2
.txt Config_Options.txt Size: 13,4 KB  Downloads: 3
    [attachment=3226]    
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#2
Photo 

Hi Wx_man23,

Thanks for the pics and config files. Your Config_options.h file seems OK.

Let's start by one thing at a time. From the your pictures seems that the connections for the PMS7003 aren't correct.
Please refer to the connection instrutions published here: https://www.meteocercal.info/forum/threa...l#pid15365


[Image: 4Pro_AQM_III_PMS7003_Connections_800px.jpg]

Once we will have the PMS7003 working we will go to the SCD30. I'm afraid connections aren't good too. Please add a close up picture.

Regards
Werk_AG

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#3

Sadly I cannot find a connection for "SET" with what I have. Do I need to go onto Alibaba and find something else?
[attachment=3233]    


Attached Files Thumbnail(s)
   
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#4

Hi,

Thanks for the closeup pictures

Regarding the PMS7003, the SET pin is there, you should use the cable interface, not the pin headers.
The SET pin is the one that turns the PMS7003 fan ON and OFF. If the fan doesn't turn ON there are no readings.

Regarding the SCD30 the connections seem correct.

Being an initial setup I suggest starting just with the PMS7003, there is no need to disconnect the CO2 sensor, you may just disable it

Code:
// --------------------------------------------------------------------------------------
//   Define type of CO2 sensor
// --------------------------------------------------------------------------------------
#define CO2_SENSORTYPE  0    // 0= Not instaled, 1= Sensirion SDC30, 2= MH-Z19


on the Config_options.h file, compile the code and upload. Then when you have readings from the PMS7003, enable the CO2 sensor again,


Code:
// --------------------------------------------------------------------------------------
//   Define type of CO2 sensor
// --------------------------------------------------------------------------------------
#define CO2_SENSORTYPE  1    // 0= Not instaled, 1= Sensirion SDC30, 2= MH-Z19


compile and upload the code.

Keep me informed on the progress, and we will get there. Smile

Rgs
Werk_AG

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#5

No I don't think this is possible. Please see attached. I think I need an adapter to match the pins on the board? Thanks I am optimistic anyway.
   
(17-05-2024, 18:19)werk_ag Wrote:  Hi,

Thanks for the closeup pictures

Regarding the PMS7003, the SET pin is there, you should use the cable interface, not the pin headers.
The SET pin is the one that turns the PMS7003 fan ON and OFF. If the fan doesn't turn ON there are no readings.

Regarding the SCD30 the connections seem correct.

Being an initial setup I suggest starting just with the PMS7003, there is no need to disconnect the CO2 sensor, you may just disable it
 
Code:
// --------------------------------------------------------------------------------------
//   Define type of CO2 sensor
// --------------------------------------------------------------------------------------
#define CO2_SENSORTYPE  0    // 0= Not instaled, 1= Sensirion SDC30, 2= MH-Z19


on the Config_options.h file, compile the code and upload. Then when you have readings from the PMS7003, enable the CO2 sensor again,


Code:
// --------------------------------------------------------------------------------------
//   Define type of CO2 sensor
// --------------------------------------------------------------------------------------
#define CO2_SENSORTYPE  1    // 0= Not instaled, 1= Sensirion SDC30, 2= MH-Z19


compile and upload the code.

Keep me informed on the progress, and we will get there. Smile

Rgs
Werk_AG
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#6

Hi Wx_man23,

I would recommend you to use soldered screw terminals on the PCB, e.g. type KF128-2.54. It will be much easier for you to experiment with them and they can also serve well for a permanent connection (they are more reliable than just push-in pins).

   

It can then look like this - but be careful! The picture shows my old AQM, the connector for your PMS7003 is probably located elsewhere on your "new" board.

   

Good luck!

Best Regards
Zdenek

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My outdoor AQM-I: here
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