securetorobert’s gists

securetorobert / toggle.ino

Created June 18, 2022 06:37

code to toggle state and control an output pin on Arduino Nano RP2040 Connect

	#include <Bounce2.h>

	const int pin = 2;
	const int button = 10;
	bool led_state = false;
	Bounce bouncer = Bounce();

	// the setup function runs once when you press reset or power the board
	void setup() {
	pinMode(pin, OUTPUT);

securetorobert / rpi_temperature_grove.py

Created April 5, 2022 22:40

A python file for reading temperature and humidity and displaying on an LCD screen using Grove connectors

	#
	# Weather Station. Requires Grove Shield, Temp Sensor, and LCD

	import utime
	from lcd1602 import LCD1602
	from dht11 import *
	from machine import Pin, I2C
	from time import sleep

securetorobert / blinky.py

Created November 22, 2021 01:02

Blinky in MicroPython

	import utime
	import machine

	led_onboard = machine.Pin(25, machine.Pin.OUT)

	while True:
	led_onboard.value(1) #set the LED to on
	utime.sleep(1) #wait 1 second
	led_onboard.value(0) #sset the LED to off
	utime.sleep(1)

securetorobert / arduino_blinky.ino

Created November 22, 2021 01:01

Blinky in Arduino

	// the setup function runs once when you press reset or power the board
	void setup() {
	// initialize digital pin LED_BUILTIN as an output.
	pinMode(LED_BUILTIN, OUTPUT);
	}

	// the loop function runs over and over again forever
	void loop() {
	digitalWrite(LED_BUILTIN, HIGH); // turn the LED on (HIGH is the voltage level)
	delay(1000); // wait for a second

securetorobert / main.c

Created November 22, 2021 01:01

Hello World in C

securetorobert / export_to_gcs.sql

Created March 24, 2021 16:20

Export bicycle hires to GCS

	EXPORT DATA
	OPTIONS (format=CSV,
	header=TRUE,
	uri="gs://bucket/path/rides_*.csv") AS
	SELECT
	*
	FROM
	`bigquery-public-data.london_bicycles.cycle_hire`
	WHERE
	DATE_TRUNC(DATE(end_date), month) >= '2015-08-01'

securetorobert / hires_aug_2015_to_dec_2016.sql

Created March 24, 2021 15:39

Hires between August 2015 and January 2017

	SELECT
	COUNT(rental_id)
	FROM
	`bigquery-public-data.london_bicycles.cycle_hire`
	WHERE
	DATE_TRUNC(DATE(end_date), month) >= '2015-08-01' and DATE_TRUNC(DATE(end_date), year) < '2017-01-01'

securetorobert / bicycle_hires_before_2017.sql

Created March 24, 2021 15:26

How many hires do we have before 2017

	SELECT
	COUNT(rental_id)
	FROM
	`bigquery-public-data.london_bicycles.cycle_hire`
	WHERE
	DATE_TRUNC(DATE(end_date), year) < '2017-01-01'

securetorobert / years_in_bicycle_hire.sql

Created March 24, 2021 15:19

Truncate the end_date to the year in London Bicycle Hires table and group by that.

	SELECT
	DATE_TRUNC(DATE(end_date), YEAR)
	FROM
	`bigquery-public-data.london_bicycles.cycle_hire`
	GROUP BY
	1

securetorobert / lenet.py

Created October 1, 2020 17:14

LeNet model definition

	model = models.Sequential([
	layers.Conv2D(filters=6, kernel_size=(5,5), strides=1, activation='tanh', input_shape=(HEIGHT, HEIGHT, NUM_CHANNELS)),
	layers.AveragePooling2D(pool_size=(2,2)),
	layers.Conv2D(filters=16, kernel_size=(5,5), strides=1, activation='tanh'),
	layers.AveragePooling2D(pool_size=(2,2)),
	layers.Flatten(),
	layers.Dense(120),
	layers.Dense(84),
	layers.Dense(NCLASSES, activation='softmax')
	])

Robert John securetorobert