igrr

# Try it out by opening https://ide.kaitai.io/ and copying this file there
# Based on an article by @angelcarve about ESP8266 binary image parsing with Kaitai Struct:
#  https://carvesystems.com/news/parsing-binaries-with-kaitai-struct/

meta:
  id: esp
  file-extension: bin
  endian: le

seq:

igrr

#include <PubSubClient.h>
#include <ESP8266WiFi.h>

const char* ssid = ".................";
const char* password = "................";

char* topic = "esp8266_arduino_out";
char* server = "iot.eclipse.org";

igrr

#include <stdio.h>
#include <unistd.h>
#include "soc/rtc_cntl_reg.h"
#include "esp32/ulp.h"
#include "driver/rtc_cntl.h"
#include "esp_log.h"
#include "ulp_main.h"
#include "freertos/FreeRTOS.h"
#include "freertos/semphr.h"

igrr

I (437) example: Opening file
I (457) example: File written
I (467) example: Renaming file
I (467) example: Reading file
I (467) example: Read from file: 'Hello SU04G!'
This line will be written into the log file, not to UART

igrr

/*
 * This sample illustrates how to go back to deep sleep from the
 * deep sleep wake stub.
 *
 * Consider the use case of counting pulses from an external sensor,
 * where the pulses arrive at a relatively slow rate.
 *
 * ESP32 is configured to go into deep sleep mode, and wake up from
 * a GPIO pin connected to the external pulse source.
 * Once the pulse arrives, ESP32 wakes up from deep sleep and runs

igrr

#ifndef ABOUT_PAGE_H
#define ABOUT_PAGE_H

#include <ESP8266WebServer.h>

class AboutPage : public RequestHandler {
  public:
    AboutPage(const char* uri = "about")
    : _uri(uri)
    {

igrr

#!/usr/bin/python
#
# this script will push an OTA update to the ESP
#
# use it like: python ota_server.py <ESP_IP_address> <sketch.bin>
#
# on the ESP side you need code like this: https://gist.github.com/igrr/43d5c52328e955bb6b09 to handle the update
#

import socket

igrr

/*
 * SPDX-FileCopyrightText: 2022-2023 Espressif Systems (Shanghai) CO LTD
 *
 * SPDX-License-Identifier: Apache-2.0
 */

#include <stdio.h>
#include <string.h>
#include "esp_err.h"
#include "esp_log.h"

igrr

git clone https://github.com/espressif/newlib-esp32.git &&
  cd newlib-esp32 && \
	./configure \
		--with-newlib \
		--enable-multilib \
		--disable-newlib-io-c99-formats \
		--disable-newlib-supplied-syscalls  \
		--enable-newlib-nano-formatted-io \
		--enable-newlib-reent-small \
		--enable-target-optspace \

igrr

/* ESP32-S2 (beta) "dedicated GPIO" peripheral example */

#include <stdio.h>
#include "sdkconfig.h"
#include "soc/system_reg.h"
#include "esp32s2beta/rom/gpio.h"
#include "soc/gpio_sig_map.h"
#include "driver/gpio.h"

/* The header file is not yet in IDF; however this is the only register we need. */