Deciphering Nostr and it's private keys
Posted on Saturday, January 21, 2023, 08:00 AM
I’ve heard of https://nostr.com for about a year, but not until recently have I experimenting with it.
This post consists of my rough notes as I progressed to sending a nostr message. If you are interested in a bare minimum way to post events to nostr, read on.
Generate a new private key $ openssl ecparam -name secp256k1 -genkey -out ec-priv.pem The output here as the file extension notes is PEM:
Raspberry Pi Pico Wireless & CircuitPython
Posted on Sunday, November 27, 2022, 08:00 AM
Was lucky enough to get my hands on a couple Raspberry Pi Pico W recently, and just finished up initial exploration.
I started with a by flashing the CircuitPython .UT2 to the pico, like always Adafruit has a phenomenal write up on just that.
Next I added copied in modules from the 8.x bundle, simply toss the following into your pico’s /lib/ directory:
$ ls -1 /Volumes/CIRCUITPY boot_out.txt code.py lib $ ls -1 /Volumes/CIRCUITPY/lib/ adafruit_httpserver.
Raspberry Pi Pico and 433MHz Data Radio
Posted on Monday, March 14, 2022, 11:39 AM
Well its been a minute since I’ve toyed around with electronics, but a $4 Raspberry Pi Pico board arriving in the mail changed that.
This board packs a boat load of utility for $4, just check out the data sheet and check out all them I2C and SPI pins!
I dusted off the last components I tinkered with, along with a handful of wires. After a couple days of tinkering, I ended up with a 433MHz radio packet receiver.
Unity User Interface and Diablo Style Inventory
Posted on Thursday, August 19, 2021, 10:16 AM
Well seems I forgot to share the most recent demo of my Unity project, I’m taking a break on it, but what I managed to accomplish makes me feel all warm and fuzzy.
Diablo RPG Style Inventory System in Unity
Posted on Sunday, July 25, 2021, 11:34 PM
This weekend felt like a good time to tackle something new.
After successfully prototyping a 3D Disc Golf Game , and then a Game of Life-Simulation , I wanted to explore more of the user interface side.
I decided to build an Inventory management system, also decided it best to create a new project, this way I can build the Inventory as a re-usable module for more than one project.
A Game of Life in Unity
Posted on Thursday, July 22, 2021, 10:27 PM
Took a little break from my Disc Golf Game to do a bit of AI programming in Unity .
What I ended up with was a simple Game of Life with rabbits trying to survive. Each rabbit has a growing hunger and thirst which if not addressed will result in death. The population is also broken into male and female rabbits which can reproduce.
Check out a couple minutes of the simulation running at realtime speed:
Wireless Chat using NRF24L01+ 2.4GHz RF Transceiver on Arduino & Raspberry Pi Ubuntu Linux
Posted on Monday, August 17, 2020, 09:47 PM
After a bit of success implementing an Arduino 2.4GHz Transceiver , I was encouraged to explore a more familiar environment, something with Python and Linux in the mix.
After a short period of research I landed on the circuitpython-nrf24l01 pypi project page, and quickly began digging through their examples .
It wasn’t long after I had a working prototype that mirrored my Arduino code quite closely:
Components CanaKit Raspberry Pi Zero W (Wireless) Complete Starter Kit - 16 GB Edition RF24L01+ 2.
Wireless Chat using Arduino & NRF24L01+ 2.4GHz RF Transceiver
Posted on Friday, August 14, 2020, 12:07 PM
It has been quite some time since I’ve tinkered with an Arduino, and this go around I decided to learn something new.
The [NRF24L01](http://amzn.to/3iFalxX(opens in a new tab)) 2.4GHz Transceiver is an extremely affordable wireless chip, I managed to pickup 10 units for around $12. This chip allows sending and receiving on the 2.4GHz wireless band .
Lucky for us there is a great Arduino library just waiting to be imported, thanks maniacbug !
Lord of the Rings Card Game Tracker
Posted on Saturday, August 3, 2019, 02:01 PM
Lately, I’ve been playing a bit of The Lord of the Rings: The Card Game by Fantasy Flight . The game is seriously fun and quite strategic.
Like most strategy games, there is a lot of token and phase tracking, something I thought could be easier with a simple web application!
Introducing LotR TCG Tracker !
Inspiration for a Guildmasters' Guide to Ravnica Campaign
Posted on Monday, November 19, 2018, 09:35 AM
After picking up D&D Dungeons & Dragons - Guildmasters' Guide to Ravnica I quickly realized how easy it would be to use Magic Inspiration for the Ravnica setting.
This application’s source code can be found on my Github .