garden · by arvid · 128 clones
Greenhouse soil monitor
Four capacitive probes, one per bed, on a rechargeable 18650 cell. Readings every ten minutes. From $54 in parts.
Parts
- ESP32-S3-DevKitC-1 (N8R8) C-001$19.95
- 4 × Capacitive Soil Moisture Probe (DFRobot SEN0193) P-005$23.60
- 18650 Li-ion Battery, 2200 mAh E-001$9.95
- TP4056 Li-ion Charger Module E-004price pending
Parts from $53.50 (1 not priced yet) · powered by the 18650 Li-ion Battery, 2200 mAh