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hed0rah / 24x_eeprom_detections.md
Created March 10, 2026 13:56
eeprom 24x detection methods

i2c eeprom auto-detect: per-chip detection logic

Chip Size Method Logic
24X01 128B 1-byte mirror at 128 chip wraps at 128, reading there returns same 8 bytes as address 0
24X02 256B ack_count=0, wrap test passes only responds at base, burst read at 252 wraps at 256, bytes[4..7] match sig[0..3]
24X04 512B ack_count=1, block-1 wraps responds at base+1, block 1 is 256B with 1-byte addr, wrap test confirms small blocks
24X08 1KB ack_count=3, block-1 wraps responds at base+1..+3, same block-1 wrap logic as 24X04
24X16 2KB ack_count>=7 responds at base+1..+7, no other chip uses 8 addresses, data-independent
24X32 4KB 2-byte mirror at 4096 chip wraps at 4096 in 16-bit address space
@hed0rah
hed0rah / EEPROM_size_detector.ino
Created March 6, 2026 23:48
EEPROM size detector
#include <Wire.h>
#define EEPROM_I2C_ADDRESS 0x50
// Common page sizes to test (most 24xx chips use one of these)
const uint8_t possiblePageSizes[] = {8, 16, 32, 64, 128, 256};
const uint8_t NUM_PAGE_TESTS = sizeof(possiblePageSizes);
void setup() {
Serial.begin(9600);
@hed0rah
hed0rah / eeprom_mirror.ino
Created March 6, 2026 23:43
eeprom size detect with mirror method
#include <Wire.h>
#define EEPROM_I2C_ADDRESS 0x50
void setup() {
Serial.begin(9600);
delay(1000);
// init i2c bus
Wire.begin();
@hed0rah
hed0rah / venv-activate.sh
Created March 6, 2026 05:06
venv-activate.sh
#!/usr/bin/env bash
if [[ "${BASH_SOURCE[0]}" == "${0}" ]]; then
echo "ERROR: Script must be sourced" >&2
exit 1
fi
declare -a venvs=()
while IFS= read -r -d '' dir; do
@hed0rah
hed0rah / Perceptron_Viz.html
Created February 23, 2026 22:07
AI Studies Infographic Series (example 1 will make repo later)
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>PERCEPTRON // CODE WALKTHROUGH</title>
<link href="https://fonts.googleapis.com/css2?family=Space+Mono:wght@400;700&family=Bebas+Neue&display=swap" rel="stylesheet">
<style>
:root {
--bg: #0a0a0a;
@hed0rah
hed0rah / paywall_fux0r.js
Created November 4, 2025 04:51
Paywall fux0r
/**
* bypass scroll-based paywalls, popups, and overlays.
*/
(function() {
'use strict';
console.log('paywall fux0r activated.');
// ============================================
@hed0rah
hed0rah / netstat_stat.sh
Created October 10, 2025 15:47
netstat -s colors stat
while true; do netstat -s | awk '/^[[:space:]]+[0-9]+/{num=$1; $1=""; desc=$0; print num"|"desc}' > /tmp/ns_new; if [ -f /tmp/ns_old ]; then clear; echo "=== Network Stats Delta ($(date +%T)) ==="; awk -F'|' 'NR==FNR{old[$2]=$1; next} {if(old[$2] && $1-old[$2]!=0) printf " \033[92m%+8d\033[0m %s\n", $1-old[$2], $2}' /tmp/ns_old /tmp/ns_new; fi; cp -f /tmp/ns_new /tmp/ns_old 2>/dev/null; sleep 1; done
@hed0rah
hed0rah / mcp_example.py
Created September 21, 2025 14:46
MCP example
#!/usr/bin/env python3
from mcp.server.fastmcp import FastMCP
from mcp.server.sse import sse_app # SSE transport ASGI app
import uvicorn
import subprocess
# Create MCP server
mcp = FastMCP("Pi-MCP-Server")
@mcp.tool()
@hed0rah
hed0rah / blocked_kill_signals.sh
Created March 25, 2025 16:58
List blocked signals based on hex bitmask in /proc/$PID/status
#!/bin/bash
function blocked_signals {
# convert the hexadecimal input to a binary string, ensuring uppercase
local hex_mask=$(echo "$1" | tr '[:lower:]' '[:upper:]')
local binary_mask=$(echo "obase=2; ibase=16; $hex_mask" | bc)
# calculate the number of bits (signals) to process, typically 64 for Linux
local num_bits=64
local padded_binary=$(printf "%0${num_bits}s" $binary_mask | sed 's/ /0/g')
@hed0rah
hed0rah / traffic_machine.c
Created December 3, 2024 17:50
traffic light state machine example
#include <stdio.h>
enum TrafficLightState {
RED,
GREEN,
YELLOW
};
void transition(enum TrafficLightState *state) {
switch (*state) {