The Shinyei PPD42NS sensor
This sensor emits a low occupancy time signal where the relative time the signal is in low state is measured.
The connections as are follows:
Shinyei pin |
WeMos Pin |
GPIO |
Comments |
1: Common (GND) |
GND |
|
|
2: OUTPUT(P2) |
D6 |
19 |
through voltage divider 5V - 3.3V |
3: INPUT(5V DC 90mA) |
5V |
|
|
4: OUTPUT (P1) |
D7 |
23 |
through voltage divider 5V - 3.3V |
5: INPUT T1 |
D0 |
26 |
DAC |
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Uli Raich - 2022-06-01
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Topic revision: r1 - 2022-06-01 - UliRaich