George White stonehippo

Map APIs

I've got to do some geospatial work, so I'm collecting links to various mapping, location and geospatial APIs here. If and when I work with these APIs, I may add some notes, too.

APIs

Car Simulator Data

Data points

Speed (mph/kph)
Top speed record (mph/kph)
Average speed (mph/kph)
Tachometer (revs per minute)
Odometer (miles/kilometers)
Trip odometer (A or B, miles/kilometers)

Programming Languages of Interest

These are programming languages that I'm not using day to day (yet), but that I've got an interest in using.

rust: https://rust-lang.org (and maybe check out Embedded Rust https://docs.rust-embedded.org/book/)
go: https://go.dev (I am very curious about TinyGo https://tinygo.org)
elixir: https://elixir-lang.org (and Erlang https://www.erlang.org)
dart: https://dartlang.org
Swift: https://swift.org
kotlin: https://kotlinlang.org/

Data Formats

XML: https://www.w3.org/XML/
YAML: http://yaml.org/ - is also a strict superset of JSON
JSON: https://json.org/
- JSON Schema: http://json-schema.org/ - for describing the struture of JSON documents
- JSON with comments: https://code.visualstudio.com/docs/languages/json#_json-with-comments
jsonnet: https://jsonnet.org/ - JSON for config files, with templating
BSON: http://bsonspec.org/ - JSON + binary
MessagePack: https://msgpack.org/

Granting DynamoDB access to an IAM user

To grant DynamoDB access (or any other AWS service) to an IAM account, a security policy must be applied. This requires logging in with the root account, or an IAM user with permission to manage other IAM user access.

Log in to the AWS Console at https://console.aws.amazon.com/
Go to the IAM service dashboard: https://console.aws.amazon.com/iam/home?#/home
Under IAM Resources, click Users: [n]
In the list of users, find and select my account, then click it
Click the Add Permissions button
Leave 'Add user to groupselected, click theCreate Group` button

Arduino audio synthesis

Libraries

Mozzi (https://sensorium.github.io/Mozzi/)
arduino-volume1 (https://github.com/connornishijima/arduino-volume1)
arduino-volume2 (https://github.com/connornishijima/arduino-volume2)
arduino-volume3 (https://github.com/connornishijima/arduino-volume3)

	long counter = 0;
	void setup() {
	Serial.begin(115200);
	}

	void loop() {
	char buffer[50];
	sprintf(buffer, "The count is now %d.\n", counter++);
	Serial.print(buffer);
	delay(1000);

	// invoke this with: java -showversion SSLInfo
	// Probably a good idea to compile this with -source & - target set to the Java version you're testing
	import java.util.Iterator;
	import java.util.Map;
	import java.util.TreeMap;
	import javax.net.ssl.SSLServerSocketFactory;

	public class SSLInfo
	{
	public static void main(String[] args)

	/*
	* Adafruit nRF52 Feather Example
	* Copyright (c) 2018-2019 George White <[email protected]>
	*
	* MIT LICENSE, see LICENSE.txt at https://gist.github.com/stonehippo/ffbed2f32e1813f4019ecedd22062636
	*
	* I made this example file for a coworker. It illustrates a few things:
	*
	* - Setting up a custom service
	* - Setting up custom characteristics on that service

	<?xml version="1.0" encoding="UTF-8"?>
	<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
	<plist version="1.0">
	<dict>
	<key>BackgroundColor</key>
	<data>
	YnBsaXN0MDDUAQIDBAUGKyxYJHZlcnNpb25YJG9iamVjdHNZJGFyY2hpdmVyVCR0b3AS
	AAGGoKcHCBMZHSQoVSRudWxs1QkKCwwNDg8QERJcTlNDb21wb25lbnRzVU5TUkdCXE5T
	Q29sb3JTcGFjZV8QEk5TQ3VzdG9tQ29sb3JTcGFjZVYkY2xhc3NPEDYwLjA0NTIzMjUw
	MDM1IDAuMDQ2MTk0ODkzOTcgMC4wNDYxOTQ4OTM5NyAwLjg5NzQ4OTE2MThPEDcwLjA0