Automatic Plant Watering System — DIY Kit
Capacitive soil sensor, relay pump control, live LCD readout.
₹999MADE TO ORDER
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12 mo warranty · you assemble · ships in 2 days
What you can demonstrate
- →Live moisture percentage on the LCD
- →Pump triggers automatically below 35%
- →8-second dose with a 60-second lockout
- →Manual water button for the demo
Bill of materials
Every component, by part number. Check our prices against any supplier you like.
| Part | Description | Qty |
|---|---|---|
| Arduino Nano V3 | ATmega328P, CH340 USB, headers pre-fitted | 1 |
| Capacitive Soil Sensor v2.0 | Corrosion-free analog probeCapacitive, not resistive — resistive probes corrode in weeks | 1 |
| SRD-05VDC-SL-C | 5V 1-channel opto-isolated relay moduleActive LOW | 1 |
| Submersible Pump 5V | 120 L/h mini DC pump, ~200 mA | 1 |
| Silicone tubing 6 mm | 1 metre | 1 |
| LCD1602 + PCF8574 | 16×2 LCD with I2C backpack, addr 0x27 | 1 |
| Tactile switch 6 mm | Manual water button with cap | 1 |
| Adapter 5V 2A | DC adapter with barrel jackNot a phone charger — undersized supplies brown out | 1 |
| Acrylic base 200×150 | Laser cut, 3 mm | 1 |
| M3 hardware set | Standoffs, screws, jumper wires | 1 |
Questions
- Why a capacitive soil sensor and not the cheap resistive one?
- Resistive probes corrode into uselessness inside about three weeks because current passes through the soil. The capacitive v2.0 probe does not, so the kit still reads correctly at your viva. It costs us more; we think it is the right call and we say so on the page.
- Does the report come with it?
- Yes. Every kit ships with the editable report (.docx and .pdf), a 20-slide PPT, circuit and block diagrams, commented source with pinned library versions, 25 viva questions with answers, and a printed wiring sheet in the box.
- Can I change the topic or add a feature?
- Tell us on WhatsApp before you order. Small firmware changes are usually fine; a different sensor means a different kit and a different price.
- Is there cash on delivery?
- No. Prepaid only — UPI, card or netbanking. It keeps the price where it is.
- Will the report match my college format?
- The .docx is unlocked and editable, so you add your college name, roll number and guide. The chapter skeleton follows the standard Anna University / AICTE structure.
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₹999