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STD Simple solar plant watering alarm
License: GPL 3.0
Mode: Editors' pick
- 0
Update time：
2020-03-14 09:31:52
Creation time：
2017-02-05 10:24:46
Description
This is a simple Solar plant watering alarm circuit. It will sound alarms when the soil is dry. The trees have died. It the solar sell is 6V DC power supply. Thus saving convenience and does not require batteries.No noise at night. Read more : [**Simple solar plant watering alarm**](https://www.eleccircuit.com/simple-solar-plant-watering-alarm-circuit/)
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| ID | Name | Designator | Footprint | Quantity |
|---|---|---|---|---|
| 1 | 50k | VR1 | RES-ADJ_3386P | 1 |
| 2 | 2N3904 | Q1 | TO-92-AMMO | 1 |
| 3 | 2N2222 | Q2 | TO-92-AMMO | 1 |
| 4 | 10k | R1 | AXIAL-0.3 | 1 |
| 5 | KS-12065D03YA | BUZ1 | BZ2-7.6-D12.0XH6.5MM | 1 |
| 6 | NO | LED1,LED2 | LED-3MM/2.54 | 2 |
| 7 | 100E | R2 | AXIAL-0.3 | 1 |
| 8 | solar cell | P1 | HDR-1X2/2.54 | 1 |
| 9 | probes | P2 | HDR-1X2/2.54 | 1 |
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