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mithi / dark-hexapod-robot-simulator.markdown
Created January 5, 2021 19:10
DARK-HEXAPOD-ROBOT-SIMULATOR
#include <Wire.h>
#include <Adafruit_PWMServoDriver.h>
int DELAY = 10;
int INCREMENT = 1;
int FREQ = 150;
int LARGE_DELAY = 400;
Adafruit_PWMServoDriver pwmTop = Adafruit_PWMServoDriver(0x40);
Adafruit_PWMServoDriver pwmBottom = Adafruit_PWMServoDriver(0x41);
#include <Wire.h>
#include <Adafruit_PWMServoDriver.h>
// frequency for servo drivers
int FREQ = 150;
Adafruit_PWMServoDriver pwmTop = Adafruit_PWMServoDriver(0x40);
Adafruit_PWMServoDriver pwmBottom = Adafruit_PWMServoDriver(0x41);
// Load Wi-Fi library
#include <ESP8266WiFi.h>
#include <Wire.h> //include Wire.h library
void setup()
{
Wire.begin(); // Wire communication begin
Serial.begin(9600); // The baudrate of Serial monitor is set in 9600
while (!Serial); // Waiting for Serial Monitor
Serial.println("\nI2C Scanner");
}
/*
0 | 1 | 2
----------
3 | 4 | 5
----------
6 | 7 | 8
*/
@mithi
mithi / sql_tests.md
Last active September 30, 2020 14:53

Test data

CREATE TABLE nodes (
    id SERIAL PRIMARY KEY,
    parent VARCHAR(2) NOT NULL,
    child VARCHAR(2) NOT NULL
);

INSERT INTO nodes (parent, child) VALUES  ('B1', 'C1');
from itertools import combinations
number_of_items = 8
number_of_draws = 6
iter_sets = combinations([i for i in range(number_of_items)], number_of_draws)
sets = list(iter_sets)
for s in sets:
print(s)
len(sets)
const radians = thetaDegrees => (thetaDegrees * Math.PI) / 180
const getSinCos = theta => [Math.sin(radians(theta)), Math.cos(radians(theta))]
const dot = (a, b) => a.x * b.x + a.y * b.y + a.z * b.z
const vectorLength = v => Math.sqrt(dot(v, v))
const vectorFromTo = (a, b) => new Vector(b.x - a.x, b.y - a.y, b.z - a.z)
const scaleVector = (v, d) => new Vector(d * v.x, d * v.y, d * v.z)
const cross = (a, b) => {
const x = a.y * b.z - a.z * b.y
require 'benchmark'
require 'test/unit'
include Test::Unit::Assertions
# Create values
# data: [{id, quantity }, {location_id, quantity }]
def test_values
data = []
require 'benchmark'
require 'test/unit'
include Test::Unit::Assertions
# Create values
# data: [{id, quantity }, {location_id, quantity }]
def test_values
data = []