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Norrtälje, Sweden

Mats Engstrom

Expert
@mengstr

Coding in golang/js for a living, designs retro-style discrete TTL electronic as a hobby. Used to live&work in Dubai, Kuala Lumpur and Bangkok for 15 years.

cpm8266. Z80-CP/M2.2 emulation on ESP8266 NONOS SDK + the NoSDK from cnlohr

124

KCSviewer. Kansas City Standard tape decoder/viewer made with discrete transistors

51

Discrete-AY-3-8910. AY-3-8910 made out of discrete 74-series logic ICs

42

esppic. A stand-alone Microchip PIC programmer implemented on a ESP8266

24

xmodem80. Xmodem for CP/M Z80 for CON:

16

Rom2k40. EPROM emulator based on RP2040

12

pdp8emu. PDP8 emulator running in console. Based on Douglas W. Jones code from 1995

12

aytabtu. [All Your Transistors Are Belong to Us] - A computer built from transistors

11

PDP8-X. PDP-8/X - The PDP that newer was, but might become

10

ladder. A reimplementation in golang of the 1982 game Ladder by Yahoo Software

10

TTL640x480. Low chip count 74xx-logic generating a proper 640x480 VGA sync/blanking signals

9

KimCard. AVR XMEGA based credit card sized KIM-1 6502 simulator

7

Gorgon. A defender clone for ZX Spectrum

7

Spypow. Monitor USB power consumption on six LEDs

5

NanoUtils. Small utility / breakout PCBs

5

sed80. Screen EDitor for Z80 CP/M

5

mxe11. Run UNIX on a microcontroller

4

DimBlue. 16 Channel USB & Bluetooth controllable light dimmer

4

MCC8. PCB with PIC24-based Chip-8 emulator

4

SUBASIC. Tiny Basic written in SUBLEQ assembly

4

4bittube. ESP8266 NONOS SDK code to drive cheap 4-digit LED displays

4

PDP8-Verilog. Verilog

4

PlingPlong. Two octave touch keyboard with four channel polyphonic synth

4

OSUS. Tester for Open Source USB Stacks

3

MudahSMD. Easy and simple projects for learning to solder SMD parts

3

palreport. Lists sizes of the functions in a listing file from Palbart (PDP-8)

3

PCIeTestPCB. A test PCB having a dual PCIe-36 connector and card edge connectors.

3

PDP8. Website for my PDP-8 related repos - https://smallroomlabs.github.io/PDP8/

3

B52. Hardware and a game for the early 80's Z8671 MCU with built-in BASIC

3

TREK80. Super Star Trek in 8080 assembly - WIP

2

DigiPot. Digital potentiometer with 7-segment readout

2

ICs-for-circuitjs. 74-series logic ICs for the circuitjs simulator

2

chkoverlap. Check for overlaps in data/code areas in PDP8 .rim and .bin files

2

tb8udp. Send stdin line-by-line slowly over udp

2

Tetris. A game for the Verifone Vx 680 Terminals

2

Butter. 5-in-1 game with LEDs and Arduino

2

pt8exam. Examine contents of a PDP-8 paper tape

2

wwc-tdd-meetup. My code from the TDD meetup held by Women Who Code in Kuala Lumpur

2

JavaCardDev. Scripts and setup for a JavaCard 2.2.1 & JDK 1.3

2

espbtc. Display current BTC exchange rate on a LED display using ESP8266 NONOS SDK

2

HSKLtag. Nametag with LEDs controlled by PIC10F202

2

Clock72a. Small 72 SMD LED charlieplexed clock

1

Ruler. Draft for Hole & Font Size Ruler

1

palbart. Palbart - PDP-8 assembler

1

SLEQASM. Macro assembler for SUBLEQ

1

BoomChak. 16 step sequencer/sampler - Eagle PCB & AVR code

1

Mined-Out. Source of the original Mined Out game for Spectrum from 1983

1

2MCUVGA. Generation of VGA Sync and Memory signals using two AVR Microcotrollers

1

Curious-C. Eagle PCB files for The Curious C-Beeper - Capacitance tester

1

MilleniumLander. Lunar Lander style game on PIC16 for the Hackaday 1kB competition

1

Eagle. Eagle configs and libraries

1

KeyFob. Eagle files for the HSKL key fob.

1

SockBlaster. Console/ncurses based TCP packet blaster for testing TCP servers

1

BEEPoo. Standalone AY3-8912 sound player with ATMEGA32U4 and LCD display

1

KhamsaShield. A 5x5 cm Arduino proto shield

1

PDP8-N. Shell

1

HoverHeist. (in-progress) Atari 2600 platform jumper game

1

iCEflash. Firmware and software for uploading a bitstream to iCE40 FPGA boards

1

SA10-schematics. Roff

1

StarTrek-refactor. A refactoring of the Super StatTrek code

1