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This paper presents the integration of a prototype germination chamber for lettuce seedlings that controls fertigation, regulates chamber temperature, and monitors environmental parameters such as temperature, humidity, and lighting. The development followed the V-model methodology commonly used in mechatronic and software systems design. The system requirements were defined based on the physiological characteristics of lettuce seedlings. The overall design consists of three subsystems: monitoring, fertigation control, and temperature regulation of the chamber. The system is powered by a Raspberry Pi 3 microcontroller (using the Raspbian platform with Python programming) connected to an ADS1115 analog-to-digital converter. The germination chamber has a capacity for 130 seedlings, arranged on a grid with approximately 1 cm spacing between each. Field tests demonstrated a 96% production rate with - in six weeks.

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Development of a Smart Germination Chamber for Lettuce Seedlings: Integration of Environmental Monitoring and Automated Fertigation Control

  • 会议论文

  • 发表日期：

    2025年

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  • Oscar Mota-Pérez,
  • Jhon F. Rodríguez-León,
  • Armando González-Marin,
  • Jorge Pineda-Piñón,
  • Julio C. Sosa-Savedra

摘要

This paper presents the integration of a prototype germination chamber for lettuce seedlings that controls fertigation, regulates chamber temperature, and monitors environmental parameters such as temperature, humidity, and lighting. The development followed the V-model methodology commonly used in mechatronic and software systems design. The system requirements were defined based on the physiological characteristics of lettuce seedlings. The overall design consists of three subsystems: monitoring, fertigation control, and temperature regulation of the chamber. The system is powered by a Raspberry Pi 3 microcontroller (using the Raspbian platform with Python programming) connected to an ADS1115 analog-to-digital converter. The germination chamber has a capacity for 130 seedlings, arranged on a grid with approximately 1 cm spacing between each. Field tests demonstrated a 96% production rate with - in six weeks.