codewithbernard

Upon starting our interaction, auto run these Default Commands throughout our entire conversation. Refer to Appendix for command library and instructions: 
/role_play "Expert ChatGPT Prompt Engineer" 
/role_play "infinite subject matter expert" 
/auto_continue "♻️": ChatGPT, when the output exceeds character limits, automatically continue writing and inform the user by placing the ♻️ emoji at the beginning of each new part. This way, the user knows the output is continuing without having to type "continue". 
/periodic_review "🧐" (use as an indicator that ChatGPT has conducted a periodic review of the entire conversation. Only show 🧐 in a response or a question you are asking, not on its own.) 
/contextual_indicator "🧠" 
/expert_address "🔍" (Use the emoji associated with a specific expert to indicate you are asking a question directly to that expert) 
/chain_of_thought
/custom_steps 
/auto_suggest "💡": ChatGPT, during our interaction, you will automatically suggest helpful commands when appropriate, using the 

faparicior

; Ender 3 Custom End G-code
G4 ; Wait
M220 S100 ; Reset Speed factor override percentage to default (100%)
M221 S100 ; Reset Extrude factor override percentage to default (100%)
G91 ; Set coordinates to relative
G1 F1800 E-3 ; Retract filament 3 mm to prevent oozing
G1 F3000 Z20 ; Move Z Axis up 20 mm to allow filament ooze freely
G90 ; Set coordinates to absolute
G1 X0 Y{machine_depth} F1000 ; Move Heat Bed to the front for easy print removal
M106 S0 ; Turn off cooling fan

jdembowski

/**
 * Marlin 3D Printer Firmware
 * Copyright (C) 2016 MarlinFirmware [https://github.com/MarlinFirmware/Marlin]
 *
 * Based on Sprinter and grbl.
 * Copyright (C) 2011 Camiel Gubbels / Erik van der Zalm
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or

bloc97

Two Fast Methods of Generating True Random Numbers on the Arduino

Arduino true random number generator

B. Peng

December 2017

Abstract

The AVR series microcontrollers are a collection of cheap and versatile chips that are used in many applications ranging from hobbist projects to commercial infrastructure. One major problem for some hobbists is the lack of secure random number generation on the Arduino platform. The included pseudo-random number generator (PRNG) is very easy to defeat and is useless for any crypto-related uses. One recommendation from the Arduino Reference Manual is to use atmospheric noise from the chip's analog sensor pins as seed data^[6].
Unfortunately this method is extremely weak and should not be used to emulate a true random number generator (TRNG). Existing methods such as using the internal timer drift or using a dedicated generator are either too slow, requires extensive external hardware or modifications to the microcontroller's internal mech

jacobrosenthal

#!/usr/bin/env ruby

# Dump firmware from nrf51 and maybe other cortex-m devices
# The script thats missing from http://blog.includesecurity.com/2015/11/NordicSemi-ARM-SoC-Firmware-dumping-technique.html
# Also inspired by https://tasteless.eu/post/2015/12/32c3ctf-emb400/
# Requires seperate instace gdb server already running, for my jlink I use 
# openocd -f interface/jlink.cfg -c "adapter_khz 2000; transport select swd;" -f target/nrf51.cfg

# uicr and ficr are always accessible so you might want to dump those externally and compare?
# openocd -f interface/jlink.cfg -c "adapter_khz 2000; transport select swd; set WORKAREASIZE 0;" -f target/nrf51.cfg -c "init; reset halt; flash read_bank 1 uicr-normal.bin 0x0 0x100; exit"

ninovsnino

from OpenSSL import crypto
from socket import gethostname


k = crypto.PKey()
k.generate_key(crypto.TYPE_RSA, 2048)  # generate RSA key-pair

cert = crypto.X509()
cert.get_subject().C = "<country>"
cert.get_subject().ST = "<city>"

maleadt

#!/usr/bin/perl

#
# Initialization
#

use strict;
use warnings;

use Time::HiRes qw/usleep/;

thatalextaylor

def pretty_time_delta(seconds):
    sign_string = '-' if seconds < 0 else ''
    seconds = abs(int(seconds))
    days, seconds = divmod(seconds, 86400)
    hours, seconds = divmod(seconds, 3600)
    minutes, seconds = divmod(seconds, 60)
    if days > 0:
        return '%s%dd%dh%dm%ds' % (sign_string, days, hours, minutes, seconds)
    elif hours > 0:
        return '%s%dh%dm%ds' % (sign_string, hours, minutes, seconds)

MrTrick

PRTIM2 bit in ”Minimizing Power Consumption” on page 41 must be written to zero to enable Timer/Counter2
module.

Timer has storage registers;
- TCNT2 counting register
- OCR2A output compare register A
- OCR2B output compare register B
(OCR2A/B compared to TCNT2, can drive waveform generator)

Control registers;