# LibreHacker's Technical Gemlog

## Freedom software, firmware, and hardware enthusiast

This gemlog is archived. I'm now posting tech posts to my Star Log gemlog:

=> ../starlog/ Star Log gemlog

## Comments

christopher .AT. librehacker .DOT. com

## License

Copyright © 2021, 2022 Christopher Howard.

All the contents of "LibreHacker's Technical Gemlog" are released under a CC-BY-SA 4.0 License.

=> https://creativecommons.org/licenses/by-sa/4.0/ human-readable summary of the license

=> https://creativecommons.org/licenses/by-sa/4.0/legalcode legal code of the license

=> 20221228-0.gmi 2022-12-28 - Project Updates
=> 20221109-0.gmi 2022-11-09 - Algebra Problem (2022-11-09)
=> 20221011-0.gmi 2022-10-11 - Forth Progress: ARRAY and CRC32
=> 20220913-0.gmi 2022-09-13 - I²C Project: A Single Flipped Bit
=> 20220910-0.gmi 2022-09-10 - Star Log 2022-09-10 01:50 AKDT (Fairbanks, AK, US)
=> 20220908-0.gmi 2022-09-08 - Classic Chips
=> 20220831-0.gmi 2022-08-31 - Nuon Rechargeable NiMH Batteries
=> ../your-word/20220830-0.gmi 2022-08-30 - Star Log 2022-08-30 3:00 AKDT (Fairbanks, AK, US)
=> 20220829-0.gmi 2022-08-29 - I²C Project Update
=> 20220816-0.gmi 2022-08-16 - Emacs Hack: Typing Uppercase Without CAPS LOCK
=> 20220808-0.gmi 2022-08-08 - Mecrisp Stellaris: Code Size Optimization for Constants
=> 20220727-0.gmi 2022-07-27 - Update on Forth RP2040 I2C Driver Project
=> 20220714-0.gmi 2022-07-14 - Torifying Lagrange
=> 20220702-0.gmi 2022-07-02 - Small Code Size on RP2040 Forth
=> 20220701-0.gmi 2022-07-01 - Mecrisp Stellaris Forth for RP2040: Flash and SRAM
=> 20220615-0.gmi 2022-06-15 - Various Updates
=> 20220603-0.gmi 2022-06-03 - Coleco Video Game System Screenshots
=> 20220524-0.gmi 2022-05-24 - Coleco Video Game System Handheld
=> 20220518-0.gmi 2022-05-18 - LP-425 Logic Pulser
=> 20220507-0.gmi 2022-05-07 - LCD "Bitmap"
=> 20220504-0.gmi 2022-05-04 - Forth LCD Character Demo
=> img/learning-kicad-and-ngspice.png 2022-04-28 - Fun Times Learning Spice Modeling in KiCAD (Screenshot)
=> 20220427-0.gmi 2022-04-27 - Forth LCD Driver Development
=> 20220425-0.gmi 2022-04-25 - Casio fx-9750GII Notes: Bump Function and Referencing Functions
=> img/lcd-driver-development.jpg 2022-04-21 - LCD Driver Development Hardware (Photo)
=> 20220414-0.gmi 2022-04-14 - RP2040 Mecrisp Stellaris: Viewing Data Stack Values in GDB
=> 20220411-0.gmi 2022-04-11 - Mecrisp Forth Terminal Settings
=> 20220331-0.gmi 2022-03-31 - Live Debugging with Raspberry Pi Pico
=> 20220305-0.gmi 2022-03-05 - Raspberry Pi Pico and Mecrisp Forth
=> 20220304-0.gmi 2022-03-04 - eLearnTronics Advanced Learning Board Logic Gates
=> 20220222-0.gmi 2022-02-22 - Learning x86-64 Assembly: Part 2
=> 20220204-0.gmi 2022-02-04 - Probability Notes: Total Probability
=> 20220202-0.gmi 2022-02-02 - Learning x86-64 Assembly
=> 20220115-0.gmi 2022-01-15 - Probability Notes: Negation Rule, Addition Rule, Multiplication Rule
=> 20211221-0.gmi 2021-12-21 - New Project: Switch-Programmable Blinker
=> 20211217-0.gmi 2021-12-17 - Two Great Math Books: Probability and Fibonnaci Numbers
=> 20211216-0.gmi 2021-12-16 - Subsistence Living in Terminal Land (Part II)
=> 20211215-0.gmi 2021-12-15 - Subsistence Living in Terminal Land (Part I)
=> 20211210-0.gmi 2021-12-10 - WHDTS (EQKIT) 6-Digit Digital Electronic Clock DIY Kit
=> 20211206-0.gmi 2021-12-06 - Jeppesen TechStar Flight Computer
=> 20211111-0.gmi 2021-11-11 - Pink TI-84+ (Silver Ed.) Restoration
=> 20211108-0.gmi 2021-11-08 - (Antique?) Six-Bead Soroban
=> 20211105-0.gmi 2021-11-05 - Notes on Probability: Formula for Conditional Probabilities
=> 20211029-0.gmi 2021-10-29 - Gikfun Starlight Water Kit Project
=> 20211027-0.gmi 2021-10-27 - Emacs: Adding Tab and Shift-Tab to Browse Kill Ring
=> 20211021-0.gmi 2021-10-21 - Downloading a Block of Code from PunyForth
=> 20211013-1.gmi 2021-10-13 - Four-bit Adder Demo Board Complete
=> 20211013-0.gmi 2021-10-13 - Punyforth Flash Block Editing
=> 20211008-0.gmi 2021-10-08 - Gikfun SMD Infrared Reversing Radar - Project Finished
=> 20211005-0.gmi 2021-10-05 - First SMD Project: Gikfun SMD Infrared Reversing Radar
=> 20211002-0.gmi 2021-10-02 - Rebuilding My Home HF Station
=> 20210930-0.gmi 2021-09-30 - tealdeer
=> 20210928-0.gmi 2021-09-28 - Four-bit Adder
=> 20210922-0.gmi 2021-09-22 - Electronics Learning Lab
=> 20210911-0.gmi 2021-09-11 - Pipe Viewer, Bit-rate, ASCII Animations
=> 20210907-0.gmi 2021-09-07 - Punyforth on the ESP-12E
=> 20210901-0.gmi 2021-09-01 - Viewing CVEs For Your Active Guix Profile And System
=> 20210819-0.gmi 2021-08-19 - Slide Rule
=> 20210810-0.gmi 2021-08-10 - One-Bit Adder
=> 20210808-0.gmi 2021-08-08 - Dividing Complex Numbers
=> 20210802-0.gmi 2021-08-02 - Matrix <-> Gitter: First Contact
=> 20210728-0.gmi 2021-07-28 - Punyforth Asciinema Cast
=> 20210723-0.gmi 2021-07-23 - ff-mcp23s17: GPIO Input Implemented
=> 20210714-0.gmi 2021-07-14 - ff-mcp23s17: Successful Output Test
=> 20210708-0.gmi 2021-07-06 - ff-mcp23s17: Debugging SPI Signals
=> 20210706-0.gmi 2021-07-06 - The Quest to Liberate FlashForth
=> 20210704-0.gmi 2021-07-04 - Dice Alias Using Guile
=> 20210630-0.gmi 2021-06-30 - ff-mcp23s17 Project Started