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Custom Connectors

The goal of this project is to make a ‘universal’ high-current connector that fits common car jump-start batteries.

  • Fusion 360
Friday, January 17, 2025 | 3 minutes Read
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Hardware

Hardware Evolution for Air Horn Project Hardware V0: Initial Prototype The first prototype utilized a simple setup with: Small Lead-Acid Battery: Served as the power source. Battery Balancer: Ensured the battery’s cells were evenly charged. Fuse Box: Provided overcurrent protection. Relay and Push-Button: Used to trigger the horn manually. This version was functional but limited in scalability and convenience. Hardware V1: Upgraded Design The second iteration transitioned to a more robust and modular setup:

  • Arduino
  • Fusion 360
Monday, January 6, 2025 | 2 minutes Read
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Tesla Horn Overview

Fun side project to get a full compressor powered truck air-horn into a Tesla without making ANY modification to the car. Based on several horror-stories on Reddit it did not seem like a good plan to tap into any of the onboard systems on a Tesla vehicle. This means no CAN-bus to control the air horn, no drilling holes for control wires and not even connecting to the onboard 12 volt low-voltage system.

  • AWS
  • Tesla API
  • Arduino
  • Fusion 360
Sunday, January 5, 2025 | 1 minute Read
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EV Display Cloud Architecture

This system leverages the following AWS services to achieve a robust and scalable design: AWS Lambda API Gateway AWS Parameter Store AWS Cognito AWS IoT Suite Architecture Diagram The following diagram shows the basic data flow and system design: graph TD; cog(AWS Cognito) --> |login| api api(API Gateway) --> |store customer tesla token| param[AWS Parameter Store] B[AWS Lambda function] --> | query batt SOC| api1[Tesla API] B[AWS Lambda function] --> | wake heat unlock charger| api1[Tesla API] B --> |fetch access Token| param B --> |car state parked/charging/driving batt SOC| C[AWS IOT PubSub] D(EV Display Device) --> |MQTT| C AWS Services used:

  • AWS
  • Tesla API
  • Arduino
  • Fusion 360
Thursday, October 10, 2024 | 3 minutes Read
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EV Display Hardware

EV Display: Enclosure and LED Design The EV Display aims to resemble a D-cell battery. Early prototypes focused on design constraints driven by the availability of off-the-shelf components, including 8x8 and 16x16 flexible arrays of WS2812 individually addressable RGB LEDs.

  • Arduino
  • Fusion 360
Wednesday, October 9, 2024 | 4 minutes Read
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Overview of EV Display

Introduction to the EV-Display Project The EV-Display project is, first and foremost, a hands-on learning experience, born out of a desire to immerse myself in fascinating technologies and tools that I’ve long wanted to explore. This initiative aims to serve as a stepping stone, enabling me to develop skills, refine my engineering acumen, and, within a year, establish a clear career path for the years ahead. To anchor this journey, I’ve chosen an ambitious yet purposeful goal: the development and launch of an IoT device designed to connect with Battery Electric Vehicles (BEVs) and home battery systems. This device will display their state of charge (SoC) and incorporate a rotary button for intuitive configuration and basic functionalities, such as remotely triggering climate control or adjusting the target SoC.

  • AWS
  • Tesla API
  • Arduino
  • Fusion 360
Tuesday, October 8, 2024 | 3 minutes Read
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Custom PCB for 7-segment display

Creating custom PCBs for 7-segment displays comes with its challenges:

  • Electronics Design
  • Fusion 360
Thursday, May 9, 2024 | 2 minutes Read
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DIY Epoch Clock Overview

This project stems from extensive work with epoch timestamps while using Splunk. Many applications store time in epoch notation, which led me to frequently convert between epoch time and standard formats. This inspired the idea to build a retro-style clock that displays the current date and time in epoch format.

  • Arduino
  • Fusion 360
Wednesday, May 8, 2024 | 2 minutes Read
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