Leon Rinkel leonrinkel

leonrinkel / gist:5a5ce462c752c6215bf28fb2ffe486ec

Last active May 22, 2021 20:23

raspberry pi linux waveshare oled fan hat

	mount sd cards boot partition
	remove console=tty1 from boot/cmdline.txt
	add modules_load=pwm_pca9685 to boot/cmdline.txt
	add dtoverlay=ssd1306,address=0x3c,width=128,height=32,inverted,sequential to boot/firmware/config.txt
	add dtoverlay=i2c-pwm-pca9685a,addr=0x40 to boot/firmware/config.txt

	# or

	$ echo "dtoverlay=ssd1306,address=0x3c,width=128,height=32,inverted,sequential" \| sudo tee -a /boot/firmware/config.txt
	$ echo "dtoverlay=i2c-pwm-pca9685a,addr=0x40" \| sudo tee -a /boot/firmware/config.txt

leonrinkel / traffic-light.ts

Created June 13, 2021 13:30

Typescript State Machine

	interface TrafficLightOperations {
	onButtonPressed(): void;
	onWaitedToTurnGreen(): void;
	waitToTurnRed(): void;
	onWaitedToTurnRed(): void;
	}

	interface TrafficLightContext {
	activeLight?: "red" \| "green";
	}

leonrinkel / bcd_to_seven_segment_decoder.v

Created October 10, 2021 10:36

Verilog BCD to Seven Segment Decoder

	module bcd_to_seven_segment_decoder(
	input [3:0] in,
	output reg a, b, c, d, e, f, g
	);
	always @(in) begin
	case (in)
	0: assign {a, b, c, d, e, f, g} = 7'b1111110;
	1: assign {a, b, c, d, e, f, g} = 7'b0110000;
	2: assign {a, b, c, d, e, f, g} = 7'b1101101;
	3: assign {a, b, c, d, e, f, g} = 7'b1111001;

leonrinkel / kube-flannel.yaml

Created October 16, 2021 14:48

	---
	apiVersion: policy/v1beta1
	kind: PodSecurityPolicy
	metadata:
	name: psp.flannel.unprivileged
	annotations:
	seccomp.security.alpha.kubernetes.io/allowedProfileNames: docker/default
	seccomp.security.alpha.kubernetes.io/defaultProfileName: docker/default
	apparmor.security.beta.kubernetes.io/allowedProfileNames: runtime/default
	apparmor.security.beta.kubernetes.io/defaultProfileName: runtime/default

leonrinkel / traefik-k8s-definitions.yaml

Created October 16, 2021 15:54

	# All resources definition must be declared

	---
	apiVersion: apiextensions.k8s.io/v1
	kind: CustomResourceDefinition
	metadata:
	annotations:
	controller-gen.kubebuilder.io/version: v0.6.2
	creationTimestamp: null
	name: ingressroutes.traefik.containo.us

leonrinkel / example.py

Created October 24, 2021 13:32

Python Multiprocess Work Producer/Consumer Example

	import time
	import logging
	import logging.handlers
	import multiprocessing

	number_of_work_consumers = 4

	def log_handler_fn(log_queue: multiprocessing.Queue):
	logging.basicConfig(level=logging.DEBUG)
	while True:

leonrinkel / DownloadSegments.ps1

Created February 11, 2022 11:57

	$from = 1
	$to = 540
	$url = "https://someurl/segment{}.ts"
	$out = "segment{}.ts"
	for ($i = $from; $i -le $to; $i++)
	{
	Invoke-WebRequest $url.Replace("{}", $i) -OutFile $out.Replace("{}", $i)
	}

leonrinkel / adt7410_feb11a.ino

Created February 11, 2022 20:37

Arduino <-> Analog Devices ADT7410 Temperature Sensor

	#include <stdint.h>
	#include <Wire.h>

	#define DEVICE_ADDRESS 0x48u

	#define TEMPERATURE_REGISTER_ADDRESS 0x00u
	#define STATUS_REGISTER_ADDRESS 0x02u
	#define CONFIG_REGISTER_ADDRESS 0x03u

	#define POLL_DELAY 240 /* ms */

leonrinkel / MergeSegments.ps1

Created February 19, 2022 13:27

Merge HLS segments

	for ($i=1; $i -le 540; $i++) {echo "segment$i.ts" >> list.txt}
	& "..\ffmpeg.exe" -f concat -safe 0 -i list.txt -c copy output.ts

leonrinkel / ocr.sh

Created April 15, 2022 19:21