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midi-to-simple-metal-gcode

Script to convert MIDI files to gcode. I added specific instructions for the Printrbot Simple Metal.

midi-to-ultimaker2-gcode

Script to convert MIDI files to gcode. I added specific instructions for the Ultimaker 2.

mov-is-turing-complete

A talk about the academic paper "mov is Turing-complete" written by Stephan Dolan". Practical examples from movcc compiler by Chris Domas.

name-blinker

A name blinker wearable tech I made for my Repair Kopitiam apron.

name-blinker-2

ndp2019-wristband-teardown

Tear-down effort of the Pixmob wristband used in NDP2019.

ne2000plus-collection

Collection of NE2000+ software obtained from various sources

nus-soc-print

An Android application that prints office documents and PDF files to Unix printers in NUS School Of Computing via SSH

nus-soc-print-ios

An iOS Application that prints office documents and PDF files to Unix printers in NUS School Of Computing.

odroid-frequency-change

An Android app that allows easy change of the Odroid CPU, GPU and Memory frequencies.

odroid-power-measure

A Java program that dynamically shows FPS, CPU/GPU frequency and power of Odroid-XU.

olympus-mic-d

Contains the driver CD data documents related to the Olympus Mic-D digital microscope

open-source-pcb-ruler

PCB ruler with different foot prints ,SMD proto-typing area, tables, various AWG size holes and inches and cm scale.

pcb-bme280-breakout

Pin breakout of the Bosch BME280 sensor to through-hole pin headers for prototyping

pcb-breakout-ltc3625-tps63031

Pin breakout of the LTC3625 supercapacitor charger with TPS63031 3.3V regulator to through-hole pin headers for prototyping

pcb-covox

A tiny sound card based on the Covox Speech Thing design.

pcb-covox-amp

A tiny sound card based on the Covox Speech Thing design which includes an LM386 amplifier.

pcb-covox-amp-v2

A tiny sound card based on the Covox Speech Thing design which includes an LM386 amplifier and FT245RL chip to receive data via USB. This project is a combination of my 2 earlier projects pcb-covox-amp and pcb-usb-ft245r-parallel-adapter

pcb-name-card

My business card that is on a Printed Circuit Board (PCB). Comes with an white LED, UV LED, ruler and QR code.

pcb-name-card-sp

My Singapore Power business card that is on a Printed Circuit Board (PCB). Comes with an white LED, UV LED, ruler and QR code.

pcb-usb-ft245r-parallel-adapter

A USB to parallel adapter using the FTDI FT245R chip. This is not a IEEE 1284 compliant parallel port. Just using the DB25 connector to access the data pins.

pi-radio

Raspberry Pi internet radio streamer for Singapore. Can be modified to stream other internet radio stations.

power_measure_tool

An Arduino setup to measure the voltage and current of a load.

presentation-slides

Contains slides of talks I have given that are too small to be placed in their own repos

programming-win31

The sample codes provided in the floppy disk of Charles Petzold's book Programming Windows 3.1.

quick-start-to-eagle

A talk about introducing people to the basics of using Eagle.

reflections-on-trusting-trust

A talk (including sample code) about the Turing award lecture "Reflections on Trusting Trust" originally given by Ken Thompson.

reflections-on-trusting-trust-go

A talk (including sample Golang code) about the Turing award lecture "Reflections on Trusting Trust" originally given by Ken Thompson.

repair-kopitiam-training-and-equipment

Training materials and equipment schematics for Repair Kopitiam.

retro-configs

Collection of my DOS configurations and drivers of my retro machines