Enviro Grow - soil moisture monitoring system with Raspberry Pi Pico W + accessories

Description

A set for controlling soil moisture of cultivated plants equipped with a controller based on Raspberry Pi Pico W. It consists of a module with a pressure, humidity, temperature and light sensor and three capacitive humidity sensors with Grove cables. The set is controlled by the RP2040 microcontroller board equipped with two ARM Cortex-M0 + cores operating at 133 MHz, 264 KB RAM and 2 MB of external QSPI flash memory. In addition, the board is equipped with the Infineon CYW43439 system, extending the board with wireless connectivity.

The module is based on the BME280 sensor, which allows you to read the atmospheric pressure in the range from 300 to 1100 hPa with an accuracy of ± 1 hPa, temperature in the range from -40 to 85 ℃ with an accuracy of ± 1 ° C and humidity with an accuracy of ± 3%. On the board, the user will also find the LTR-559 light sensor, which allows you to read the illumination intensity from 0.01 to 64,000 lux and detect objects in a short distance (up to 5 cm). In addition, the user has at his disposal a buzzer, humidity sensor inputs and connectors for connecting additional 5V powered elements, e.g. pumps or valves. Additional sensors can be connected via the Qwiic / Stemma QT connector.

The device is designed to work well on battery power. The Enviro board has a built-in RTC (real time clock) so you can periodically wake the microcontroller from sleep mode, read (and optionally connect to Wi-Fi), and then sleep again, giving you months of unlimited battery life. The set is dedicated to automatic garden projects. Examples of use along with the instruction manual are available on the project website.

Features

• Raspberry Pi Pico W
• Dual Arm Cortex M0+ operating at up to 133 MHz with 264 KB of SRAM
• 2MB QSPI flash memory supporting XiP
• Powered and programmable via USB micro-B
• 2.4 GHz wireless communication
• BME280 sensor:
• Pressure measurement: from 300 to 1100 hPa
• Temperature measurement: -40 to 85 ℃
• Humidity measuring range: 0 to 100% RH
• I2C interface
• LTR-559 sensor
• Measurement of illuminance from 0.01 to 64,000 lux
• Proximity sensor up to 5 cm
• UV/IR filter
• I2C interface
• Sleep/wake function with RTC
• 1 x POKE button
• Reset button
• JST-PH battery connector
• User LED
• Warning LED for real time clock
• Qwiic / Stemma QT connector

Kit contains

• Enviro Grow module
• 3 x soil moisture sensor
• 3 x 35 cm sensor cable
• 3 x mini water pump
• 1m silicone tube
• 2 x AAA battery
• 2 x AA battery
• Micro USB cable
• Velcro for attaching the battery