Representative Architecture
Sensor Node PCB
ESP32 with moisture sensor
Electronics Build
ESP32ESP32MQTTSensors
ESP32 Irrigation Sensor Node
Low-power ESP32 node with capacitive soil moisture sensing, deep sleep, and MQTT telemetry.
Overview
Battery-efficient ESP32 sensor node for continuous soil moisture monitoring in the irrigation automation project.
Hardware
- ESP32-WROOM-32 with deep sleep
- Capacitive soil moisture sensor v1.2
- 18650 Li-ion with TP4056 charger
- IP67 enclosure for outdoor deployment
Results
3-week battery life with 5-minute reporting intervals. MQTT QoS 1 for reliable telemetry delivery.
Gallery
Representative Architecture
Sensor Node PCB
ESP32 with moisture sensor
Electronics Build