---
title: "Ashish Disawal (@ashishdisawal) | Hashnode"
description: "Starting to give back to the community. Read the latest articles by Ashish Disawal on Hashnode."
url: "https://hashnode.com/@ashishdisawal"
---

@ashishdisawal

# Ashish Disawal

@ashishdisawal · India · Joined March 2023

Starting to give back to the community.

### [Giving My Robot Eyes: HP w300 Camera on Arduino UNO Q's Linux Side](https://prahari.hashnode.dev/giving-my-robot-eyes-hp-w300-camera-on-arduino-uno-q-s-linux-side?utm_source=hashnode&utm_medium=feed)

Part 3 of "Building an Eldercare Robot" — USB webcam capture from the Qualcomm MPU via Python and OpenCV

7 min read · [prahari.hashnode.dev](https://prahari.hashnode.dev/giving-my-robot-eyes-hp-w300-camera-on-arduino-uno-q-s-linux-side?utm_source=hashnode&utm_medium=feed)

[2](https://hashnode.com/posts/giving-my-robot-eyes-hp-w300-camera-on-arduino-uno-q-s-linux-side/69dbe11baadf1107e21498b2) [Apr 12](https://hashnode.com/posts/giving-my-robot-eyes-hp-w300-camera-on-arduino-uno-q-s-linux-side/69dbe11baadf1107e21498b2)

### [Giving My Robot Its First Sense: HC-SR04 Ultrasonic on Arduino UNO Q](https://prahari.hashnode.dev/giving-my-robot-its-first-sense-hc-sr04-ultrasonic-on-arduino-uno-q?utm_source=hashnode&utm_medium=feed)

Part 2 of "Building an Eldercare Robot" — HC-SR04 ultrasonic distance sensing via the MCU-MPU Bridge

6 min read · [prahari.hashnode.dev](https://prahari.hashnode.dev/giving-my-robot-its-first-sense-hc-sr04-ultrasonic-on-arduino-uno-q?utm_source=hashnode&utm_medium=feed)

[Apr 1](https://hashnode.com/posts/giving-my-robot-its-first-sense-hc-sr04-ultrasonic-on-arduino-uno-q/69ccc726b504c4ed0a378a01)

### [Arduino UNO Q is NOT a Regular Arduino: What I Learned the Hard Way](https://prahari.hashnode.dev/arduino-uno-q-is-not-a-regular-arduino-what-i-learned-the-hard-way?utm_source=hashnode&utm_medium=feed)

Part 1 of "Building an Eldercare Robot" — Setting up the Arduino UNO Q for CLI development

7 min read · [prahari.hashnode.dev](https://prahari.hashnode.dev/arduino-uno-q-is-not-a-regular-arduino-what-i-learned-the-hard-way?utm_source=hashnode&utm_medium=feed)

[1](https://hashnode.com/posts/arduino-uno-q-is-not-a-regular-arduino-what-i-learned-the-hard-way/69c931237816e434a055316f) [Mar 29](https://hashnode.com/posts/arduino-uno-q-is-not-a-regular-arduino-what-i-learned-the-hard-way/69c931237816e434a055316f)

### [Machine Learning Basics: Improving Model Performance with Feature Engineering](https://prahari.hashnode.dev/machine-learning-basics-improving-model-performance-with-feature-engineering?utm_source=hashnode&utm_medium=feed)

Feature engineering boosts model predictions using domain knowledge, interaction features, and data exploration

10 min read · [prahari.hashnode.dev](https://prahari.hashnode.dev/machine-learning-basics-improving-model-performance-with-feature-engineering?utm_source=hashnode&utm_medium=feed)

[Oct 2, 2025](https://hashnode.com/posts/machine-learning-basics-improving-model-performance-with-feature-engineering/68deb9d307bfc89fc1594558)

### [Machine Learning Basics: Building Your First Simple Linear Regression Model](https://prahari.hashnode.dev/machine-learning-basics-building-your-first-simple-linear-regression-model?utm_source=hashnode&utm_medium=feed)

Learn to build a simple linear regression model for predicting insurance charges with step-by-step data preparation and model evaluation

7 min read · [prahari.hashnode.dev](https://prahari.hashnode.dev/machine-learning-basics-building-your-first-simple-linear-regression-model?utm_source=hashnode&utm_medium=feed)

[Sep 21, 2025](https://hashnode.com/posts/machine-learning-basics-building-your-first-simple-linear-regression-model/68d02b82cef781ded93e37ba)