Benjamen Lim

Essentials Board

The Essentials Board

A universal breakout board that takes care of power and clock for SMD microcontrollers.

Capstone

2 Revolute Joint Robotic Arm

A final year capstone project. A two revolute joint robot with high torque, speed, and precision. Achieved in hardware, software and electrical design.

LCD

UART controlled LCD screen

Creating a simplified LCD interface for simple displays. Communicates over UART!

education

Webcam project

How we built an IoT webcam from scratch with a ATSAM4S and a WiFi chip.

simple boards

Simple Melody Generator

Reviving and analyzing a small simple circuit.

Silicon Labs

EFM8 Laser Bee from Silicon Labs

An 8-bit offering from Silicon Labs with an impressive amount of documentation and support to get you up and running fast.

STM32

Getting Started with Atollic TrueStudio and STM32

Exploring the STM32, a family of Arm Cortex chips from ST Microelectronics!

Mathematica

Paddle-ball Project

Modeling a bouncing triangular paddle-ball with a non-linear spring using Euler-Lagrange equations in Mathematica.

CircuitPython

Getting ST7735 working with CircuitPython

How to get the ST7735 screen to work with CircuitPython

Webroots 3: Cloud Reading

The final part of this Webroots project is to read data from our sensors. This is useful because many IoT devices are intended as a means to collect data. By implementing this service, we will be able to tell the state of our room, even when we are not close

CircuitPython

A More Precise ADC

Measuring voltages in micro volts!

Keyboard

Custom Keyboard

Tired of typing? Make a custom keyboard in python!

soldering

Learn how to solder!

I made a soldering kit for NUSTARS.

Python

Programming Tips

My list of Python tips for programming in Python and using it with Jupyter

Arduino

Webroots 2: Viewing things

Wiring up and using OLEDs

Webroots 3: Server On a Chip

I previously hinted that the ESP8266 was capable of much more and that includes being able to run a server. It is able to turn itself into a tiny WiFi hotspot and serve a basic webpage. This avoids the hassle of looking for an access point for the ESP8266 if

Python

Some lessons on writing web-interface scripts

These are some impressions and lessons that I learned from writing a few scripts that access web-interfaces over the last few weeks. 1. Automated login forms are hard. Use cookies. Not all websites provide their login interfaces with a webpage or an easily accessible form. Some use overlays and this

SMD soldering techniques

Learn how to solder SMD parts!

3D printing

Projects, Summer 2018

All my projects for the Summer 2018! Featuring miniatures, more SAMD chips, and 3D printers, crochet and woodworking.

Google

How to Remove/Exclude ANY SITE from your Google Searches PERMANENTLY

Remove/Exclude Any Site (Pinterest/Research Gate) from your Google search permanently without any addons!

privacy

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SAMD51

Building a SAMD51 Breakout board

I made a breakout board for the ATSAMD51 - a big brother to the ATSAMD21!

Projects

Simple Overhead LED Desk Lamp

Illuminate your entire desk with almost no shadows with this unique overhead arch design!

ATMEL

Proving Fields

Test your mettle against this board!

Motor Motion Module

This is a DC Motor Controller that is built off the TIVA TM4C123. This microcontroller has several nice features, such as a CAN bus and two hardware quadrature decoders. This means that we can attach quadrature encoders to any motor and use them to compute a position for the motor.