app.py

import streamlit as st
import joblib  # or import your model code
import numpy as np

@st.cache_resource
def load_model():
    return joblib.load("rangefinder.pkl")

model = load_model()

st.title("Laser-Based Object Range Finder 🔭")
st.write("Upload sensor data (CSV of timestamps & laser readings).")

upload = st.file_uploader("Laser Data (CSV)", type=["csv"])
if upload:
    import pandas as pd
    df = pd.read_csv(upload)
    distances = model.predict(df["laser_reading"].values.reshape(-1, 1))
    df["estimated_distance"] = distances
    st.line_chart(df[["laser_reading", "estimated_distance"]])
    st.write(df)