Soil Probe Telemetry

This document compiles the hardware integration details and multi-trial field logs of the Amici Sense soil telemetry system integrated into the Smart Agri Four Legged Bot.

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1. Soil Probe Telemetry Data

The Amici Sense soil analysis system logs soil health parameters. Telemetries are parsed via Python on the NVIDIA Jetson Nano and combined with ML outputs in a local CSV file.

Telemetry Hardware Integration

• Power Rail: 5V rail stepped down via a DC-DC buck converter.
• Data Bus: Serial UART communication with Jetson Nano GPIO, utilizing level shifters to step 5V signals down to Jetson-safe 3.3V levels.
• Response Time: < 5 seconds per measurement cycle.

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2. Field Logs (Three Consecutive Trials)

Below is the telemetry dataset captured in-situ across three consecutive field trials:

Measured Parameter	Trial A	Trial B	Trial C	Average	Unit
Soil Moisture	13.2	12.9	13.5	13.20	%
Soil pH	6.3	6.2	6.4	6.30	—
Electrical Conductivity (EC)	478	484	470	477.33	µS/cm
Soil Temperature	33.4	33.8	33.1	33.43	°C
Sunlight Intensity	30,800	31,200	32,100	31,366.67	Lux
Air Humidity	55.4	56.1	54.7	55.40	% RH

Automated Sampling

The soil probe is automatically triggered to take readings when a stop command is issued following a confirmed weed classification. The combined payload of visual data and chemical soil telemetry is saved locally with timestamps for precision farming mapping.