Zain Ahmed

Zain Ahmed

Subscribe

PDSupply USB-C PD Power Supply

PDSupply USB-C PD Power Supply

GitHub links: * KiCad project * NRF52 firmware * iOS core bluetooth application This is a project I worked on during June of 2020 which ended up being useful for my extracurricular projects (FSAE and my personal stuff). The PDSupply is a USB-C Power Delivery capable adjustable power supply. The board is smaller

Long Range Wireless CAN Bus Bridge

Long Range Wireless CAN Bus Bridge

During my time on the WMU Formula SAE racing team, I started to learn the value of dumping nearly all data we could ever need onto the vehicle's CAN bus. This made firmware development super easy becuase any module could control or query data from any other module. Additionally, we

5 Channel Thermocouple to CAN Bridge

5 Channel Thermocouple to CAN Bridge

This is a super simple device, with moderately bad routing. If I was to remake this board I would downsize the decoupling caps and place the main crystal closer to the MCU. I designed this board during college for my FSAE team, as we needed a way to simultaneously measure

IMU Tester Senior Design Project

IMU Tester Senior Design Project

The total design report for this project spans 80 pages. I am using this quick post to share some parts of the project I found fun or interesting rather than regurgitating the design report. This project was originally presented at Western Michigan University's 2021 Senior Design Conference at the College

Ray-traced KiCad render of the 18650 charger PCB.

USB-C Powered Dual Slot LiFeP04 18650 Charger

See the files on GitHub [https://github.com/zainahm3d/18650-charger]. A couple of years ago, I was gifted about 50 unused K2 Energy [https://k2battery.com] LiFeP04 cells, originally intented to be used in autoclavable surgical instruments. They were gifted to my university's solar car team, who were unable to