yeokm1/pcb-covox-amp-v2

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2
Language KiCad Layout
License
MIT License
Created over 8 years ago
Updated about 8 years ago

yeokm1/pcb-covox-amp-v2

yeokm1

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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

docs-to-pdf-converter

A standalone Java library/command line tool that converts DOC, DOCX, PPT, PPTX and ODT documents to PDF files.

w31slack

A proof-of-concept Slack client for Windows for Workgroups 3.11 with tests.

doschgpt

A proof-of-concept ChatGPT and Hugging Face client for DOS with text-to-speech for Sound Blaster compatible systems.

SwiftSerial

A Swift Linux and Mac library for reading and writing to serial ports.

http-to-https-proxy

A proxy that upgrades HTTP connections to HTTPS for systems which cannot make HTTPS requests.

gentoo-on-486

Instructions on how to install modern Gentoo Linux on ancient 486-based PCs.

programming-win31

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

ndp2019-wristband-teardown

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

retro-configs

Collection of my DOS configurations and drivers of my retro machines

reverse-engineering-ndp2016-wristband

Schematics of the reverse engineered Pixmob wristband used in NDP2016. Sample IR brute-force code is available but has not been fully tested in practice.

covox-music-player

A Linux program that plays MP3 or WAV files to the Covox Speech Thing or its clones via a native parallel port.

nus-soc-print

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

reflections-on-trusting-trust

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

pcb-covox-amp

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

coders-dvorak-regular-keypad

Programmer Dvorak layout with the typical keypad layout instead of the modified one by Roland Kaufmann.

distance-machine-locker

A system that locks your computer the moment you move away from it.

ssim

Program to measure the similarity between two videos using the OpenCV library and the structural similarity algorithm (SSIM). This is modified from the video-input-psnr-ssim tutorial of OpenCV.

intro-to-ble

A talk about basic Bluetooth Low Energy concepts followed by code explanations.

ne2000plus-collection

Collection of NE2000+ software obtained from various sources

pcb-covox

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

pi-radio

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

nus-soc-print-ios

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

ssim-cuda

CUDA Program to measure the similarity between two videos using the OpenCV library and the structural similarity algorithm (SSIM). This is modified from the video-input-psnr-ssim tutorial of OpenCV

ble-localiser

This talk is about how I manage to do localisation using 3 Raspberry Pis(RPis) as beacons.

iot-esp32-mcu-workshop

This is an introductory IoT ESP32 Microcontroller workshop to get acquainted with microcontroller programming and simple electronics.

dvfs

A C++ native Android program that does dynamic frequency scaling to achieve a target frames-per-second (FPS).

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.

SwiftLinuxSerial

A Swift 3 Linux-only library for reading and writing to serial ports. (Deprecated for SwiftSerial)

ht107e-socket-tester-teardown

intro-to-pcb-design-eagle

A class to introduce students to designing Printed Circuit Boards (PCBs) using the Eagle software.

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.

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.

getting-started-with-rpi

A talk about introducing the audience to setting up the Raspberry Pi as well as basic Python coding on the GPIO pins.

intro-to-rpi

A short introductory course I conducted for people new to Raspberry Pis and Linux.

odroid-power-measure

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

pcb-breakout-ltc3625-tps63031

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

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.

sensor_clock_2

A clock composed of an Arduino, temperature and humidity sensors. Includes integrated charger.

vibrate_alarm_clock_2

An vibrating alarm clock based on Microview.

start-sslstrip-on-boot

Scripts to to start SSLStrip on boot for Arch Linux ARM on Raspberry Pi

power_measure_tool

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

retro-configs-apple

Collection of my setup configurations and disc locations of my retro Apple machines

cs5272-project

A group project done in NUS CS5272 module in AY2014-2015 Sem 2.

yeokm1.github.io-hugo

Hugo source files for my site at http://yeokhengmeng.com.

yeokm1.github.io

Hugo compiled frontend files for my site at http://yeokhengmeng.com.

pcb-bme280-breakout

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

dvfsapp

An app front end that does dynamic frequency scaling to achieve a target frames-per-second (FPS).

vibrate_alarm_clock

An alarm clock with vibration capabilities.

auto-rotate-screen

A program that auto rotates the screen when the Thinkpad is rotated.

fpsmeasure