Only one PMS7003 sensor supports in default SW versions, second sensor if for further coding and increasing accuracy of station.
Mounting instructions of similar sensor: https://luftdaten.info/en/construction-manual/#komponenten-schaltung
Stable flasher with all actual binarys available here: https://github.com/opendata-stuttgart/airrohr-firmware-flasher/releases/tag/v0.2
Sensor registrations required on:
Configuration witch was tested:
Tip to recover ESP8266 board if it can not be loaded. I just use luftdaten-tool_windows_amd64.exe loader - and prepare breadboard with ESP and D8+D7 connected to +3.3V pins. Then start downloading - loader will waits for respons for more than 10 seconds and duringthat time I just unplug wires from D8 and D7. Miracle - it loads and starts to work fine! See also https://github.com/esp8266/Arduino/issues/1017#issuecomment-156689684
| ID | Name | Designator | Footprint | Quantity |
|---|---|---|---|---|
| 1 | PMS7003 | U1 | PMS7003 | 1 |
| 2 | NodeMCU_V1_ESP12E | U10 | NODEMCU V2 | 1 |
| 3 | 100u 50V | C1 | CAP-D8.0XF3.5 | 1 |
| 4 | 0,1u | C2 | RAD-0.1 | 1 |
| 5 | 10k | R1,R2,R8,R3 | 1812 | 4 |
| 6 | 3.3k | R5,R6 | 1812 | 2 |
| 7 | LDR07 | R7 | RESISTOR_LDR_5.1X4.3_RM3.4 | 1 |
| 8 | WJ250A-3.50-2P | CN1 | WJ250A-3.50-2P | 1 |
| 9 | WJ142V-5.08-02P-14-00A | CN2 | WJ142V-5.08-2P | 1 |
| 10 | Jumper NC | J1 | NONE | 1 |
| 11 | RX | U2 | TEST-0805 | 1 |
| 12 | TX | U3 | TEST-0805 | 1 |
Comments (1)
Circuit board
ESP side:
PMS side:
Enclosure:
Enclosure parts:
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https://27.ua/shop/reduktsiya-pp-72x50-evroplast.html
https://27.ua/shop/mufta-kanalizatsionnaya-pp-50-180.html