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  • 2020-03-20 06:19:10

    Bien reçu ce jour sans casse. Reste à tester.

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  • Bleph
    HU
    2017-02-27 15:36:13

    Hi All, It can be hooked up to a simple usb/serial converter (only 4 wires required). Make sure the data lines (Tx and Rx) use 3V signalling. Running a simple powershell script the data is displayed. Script: [Byte[]] $request = 0xff, 1, 0x86, 0, 0, 0, 0, 0, 0x79 [Byte[]] $res = 0, 0, 0, 0, 0, 0, 0, 0, 0 $port = new-Object System.IO.Ports.SerialPort COM57,9600,None,8,one $port.Open() $port.Write($request, 0, 9) Start-Sleep -Milliseconds 50 For ( $i = 0; $i -lt 9; $i++ ) { $res[$i] = $port.ReadByte() } Write-Host

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  • 2017-07-08 03:20:24

    Seems to do what it says on the box. Inside with a gas heater (with flue) on I got (with the script above, cheers) an uncomfortably high reading >1200ppm so I took it outside and got 385ppm after a few minutes, which seems right. So I have a window open now :-)

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  • 2017-01-17 11:25:44

    Works as specified, worm up phase is longer than 3 minutes, but under 5 min. Supplycurrent is quit high with peaks, but on average also as specified.

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  • 2018-02-28 16:32:37

    it arrived in 2 weeks, in a good packaging. It works well. good deal.

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  • 2019-10-09 06:49:13

    Veio jogado dentro do pacote, sem proteção. Mas chegou ok. Não testei ainda.

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  • 2019-04-01 12:23:43

    хороший товар

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  • 2020-06-24 09:17:20

    CO2 measurements is very good. No calibration needed. I wired it to a nodemcu with Tasmota firmware flashed. Taslota also shows the temperature but this value is way off, 17 degrees C higher than the actual temperature. Strange since this offset is identical over the full range (can be used if the offset is compensated in sw). The temperature is only with a 1 degree resolution (not 0.1).

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  • jelbert
    NL
    2020-01-20 16:27:58

    This module has been on my wishlist for quite some time. I hope it is properly calibrated.

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  • 2020-01-10 09:20:45

    easy to connect to ESP and domoticz

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