chaeplin

https://github.com/esp8266/Arduino/blob/342c4ae6fb847bfc787f80b89a2bb888d942dc32/libraries/ESP8266WiFi/src/include/UdpContext.h#L308

private:

    void _reserve(size_t size)
    {
        const size_t pbuf_unit_size = 512;
        if (!_tx_buf_head)
        {
            _tx_buf_head = pbuf_alloc(PBUF_TRANSPORT, pbuf_unit_size, PBUF_RAM);

chaeplin

function video-upload() {
  if [ $# -lt 1 ]; then
    echo "[ERROR] Missing required file name."
  else
    FILESIZE=$(wc -c "$1" | awk '{print $1}')
    printf "[START] Uploading $FILESIZE bytes.\n"
    MEDIAID=$(twurl /1.1/media/upload.json -H upload.twitter.com -d "command=INIT&media_category=amplify_video&media_type=video/mp4&total_bytes=$FILESIZE" | jq .media_id_string | sed 's/\"//g')

    INDEX=0
    split -b 5m $1 twitter-video-

chaeplin

// File: WiWi_FTP_Client.ino for ESP8266 NodeMCU
/*
   Original Arduino: FTP passive client 
   http://playground.arduino.cc/Code/FTP
   Modified 6 June 2015 by SurferTim

   You can pass flash-memory based strings to Serial.print() by wrapping them with F().

   2015-12-09 Rudolf Reuter, adapted to ESP8266 NodeMCU, with the help of Markus.
*/

chaeplin

struct spiffs_helper_t {
  
  File f;
  spiffs_helper_t(const char * _path ) {
    f = SPIFFS.open(_path, "r+"); // try to open if there... for read and write
    if (!f) {
      f = SPIFFS.open(_path, "w+"); // if fail open for read/write but new
    }
  };

chaeplin

#define TRIAC_PIN       5
#define ZERO_CROSS_PIN  4
#define DEBOUNCE_TIME   9000 //9ms - 10ms is the pulse period

static uint32_t lastPulse = 0;
static uint16_t period    = 5000; //5ms - 50% for each half wave

void ICACHE_RAM_ATTR onTimerISR(){
  if(GPIP(TRIAC_PIN)){//OUTPUT is HIGH
    GPOC = (1 << TRIAC_PIN);//low

chaeplin

// from https://raw.githubusercontent.com/royi1000/ardu-info-center/63df56531a5368c9d195c5effe2d307da26e21a6/gateway/gateway.ino
#include <avr/pgmspace.h>
#include <avr/eeprom.h>
#include <Wire.h>
#include <SPI.h>
#include <EEPROM.h>
#include <DS1307RTC.h>
#include <Time.h>
#include <Ethernet.h>
#include <EthernetUdp.h>

chaeplin

// CPU 80MHZ, FLASH 4M/1M
/*
  *** Sample using esp-01, D16 is connected to RST
  *** If DHT22 is powered by a gpio( VCC of DHT22 is connected to a gpio) and OUTPUT of DHT22 is connected to D2, boot will fail.
  *** Power off ----> D2 is in LOW( == DHT22 is in LOW) ==> SDIO boot mode.


  Temperature and humidity values are each read out the results of the last measurement.
  For real-time data that need continuous read twice, we recommend repeatedly to read sensors,
  and each read sensor interval is greater than 2 seconds to obtain accuratethe data.

chaeplin

#include <ESP8266WiFi.h>
#include <WiFiUdp.h>
#include "PietteTech_DHT.h"
// ap setting
#include "/usr/local/src/ap_setting.h"

extern "C" {
#include "user_interface.h"
}

chaeplin

#include <SPI.h>
#include <nRF24L01.h>
#include <RF24.h>

#define DEVICE_ID 2
#define CHANNEL 1 //MAX 127
RF24 radio(15, 15);                // Set up nRF24L01 radio on SPI bus plus pins 7 & 8

// Topology
const uint64_t pipes[2] = { 0xFFFFFFFFFFLL, 0xCCCCCCCCCCLL };

chaeplin

void requestEvent()
{
  if ( m % 2 == 0 ) {
    I2C_writeAnything(sensor_data);
  } else {
    I2C_writeAnything(sensor_data_copy);
  }
  m++;
}