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[Joonas] first explores using an Arduino to do the job, paired with a RFM210LCF-433D radio receiver module. This setup dumps out data to a computer over serial for decoding.

Arduino checks moisture and sends readings to the Pi. A Python script on the Pi decides when to open the valve. Use systemd to run the monitoring script as a background service. Enhancements: Include ...

The Arduino and the Rasberry Pi often get compared when prospective tinkerers look for a device to mess around with. Although they are similar in size, they have some major differences.

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HealthyPi 5 has a Raspberry Pi RP2040 dual-core, Cortex M0+ microcontroller at its core, supported by an ESP32 C3 RISC-V microcontroller that handles the wireless protocol stacks.

The Arduino Nano and Raspberry Pi Pico support different input voltages, so they also use different power sources. However, they can both be powered with a 5V supply via their onboard USB ports.