another one. soon is already 20 :)
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Sunday, October 16, 2022
Sunday, July 17, 2022
Intel AMT revisited
The old article refers to using the Intel AMT SDK and Real VNC Plus for connecting to the remote console, but a better solution is to use meshcommander - this allows you to control all the available devices in your local network form one place.
In order to install meshcommander, only NodeJS and the corresponding npm is needed, so it all resumes to:
cd ~/.meshcommander
npm install meshcommander
node meshcommander [--any (default is 127.0.0.1) --port (default is 3000)]
and you can use the web console (http://localhost:3000):
Friday, June 24, 2022
EliteBook ambientlight sensor
echo $((1 - $(cat /sys/devices/platform/hp-wmi/als))) | sudo tee -a /sys/devices/platform/hp-wmi/als
Saturday, April 23, 2022
HiSilicon Hi3516Ev200 debrick
HiSilicon Hi3516Ev200 camera gets bricked if tried to update the OpenIPC from the web interface running on :85, as the mtd block erase crashes the system during the process.
Download the latest build from github, unpack it and put it on the tftp directory.
Set the local IP as 192.168.1.254
Start tftp server: in.tftpd -L -vvvv -a 192.168.1.254:69 -s /tmp/tftpboot
Connect the USBSerial adapter and configure minicom speed at 115200bps.
Connect power to the HiSilicon board and press CTRL+C
At the prompt, type:
setenv bootargs 'mem=${osmem:-32M} console=ttyAMA0,115200 panic=20 root=/dev/mtdblock3 rootfstype=squashfs init=/init mtdparts=hi_sfc:256k(boot),64k(env),2048k(kernel),5120k(rootfs),-(rootfs_data)'
setenv bootcmd 'setenv setargs setenv bootargs ${bootargs}; run setargs; sf probe 0; sf read 0x42000000 0x50000 0x200000; bootm 0x42000000'
setenv uk 'mw.b 0x42000000 ff 1000000; tftp 0x42000000 uImage.${soc} && sf probe 0; sf erase 0x50000 0x200000; sf write 0x42000000 0x50000 ${filesize}'
setenv ur 'mw.b 0x42000000 ff 1000000; tftp 0x42000000 rootfs.squashfs.${soc} && sf probe 0; sf erase 0x250000 0x500000; sf write 0x42000000 0x250000 ${filesize}'
setenv soc hi3516ev200
setenv osmem 32M
setenv totalmem 64M
setenv ipaddr 192.168.1.10
setenv serverip 192.168.1.254
saveenv
run uk; run ur; reset Saturday, October 16, 2021
Tuesday, June 01, 2021
Digium phone stuck on Contacting sip:proxy@IP:5060
Any normal/softphone works perfectly, but Sangoma (Digium) phones uses an SSL certificate to encrypt phone configuration messages. That certificate expired on May 28th, 2021. The certificate is embedded in the DPMA blob, so it can't be renewed.
Basically this is the cost of putting binary blobs on your server :(
The solution is to download a new binary blob from digium and to replace the existing one in /usr/lib/asterisk/modules
check https://my.digium.com/en/docs/DPMA/dpma-download for the right DPMA module.
# cd /root
# wget http://downloads.digium.com/pub/telephony/res_digium_phone/asterisk-13.0/x86-32/
res_digium_phone-13.0_current-x86_32.tar.gz
# tar res_digium_phone-13.0_current-x86_32.tar.gz
# cp /root/res_digium_phone-13.0_current-x86_32/res_digium_phone.so /usr/lib/asterisk/modules
# asterisk -rx "module reload res_digium_phone.so"
Wednesday, March 17, 2021
ESP Scale with calibration and tare
#include "HX711.h"
#include "Wire.h"
#include "Adafruit_SSD1306.h"
#include "ESP8266WiFi.h"
#include "EEPROM.h"
#include "ESP8266httpUpdate.h"
#define SCREEN_WIDTH 128
#define SCREEN_HEIGHT 32
#define OLED_RESET -1
#define SCREEN_ADDRESS 0x3C
#define upd_version "1"
#define upd_reboot true
#define upd_server "10.11.12.13"
#define upd_file "/update/scaleupd.php"
const int LOADCELL_DOUT_PIN = D4;
const int LOADCELL_SCK_PIN = D3;
const int TarePin = D5;
const int OverPin = D6;
const int GoodPin = D7;
const int UnderPin = D8;
int CalEepromAdress = 101;
int TarEepromAdress = 111;
float known_mass = 500;
float readValue = 0;
float calValue = 6192.2;// overrided by EEPROM or/and boot calibration
float tareValue = 472; // overrided by EEPROM or/and manual tare
const char* ssid = "myWiFi";
const char* password = "53cr37p4ssw0rd";
HX711 scale;
WiFiClient client;
Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET); //oled display uses std wire lib - for nodemcu SCL is D1(4), SDA is D2(5) (see pins_arduino.h)
void setup() {
Serial.begin(115200);
Serial.println("\nStarting...");
display.begin(SSD1306_SWITCHCAPVCC, SCREEN_ADDRESS);
display.clearDisplay();
display.setTextSize(2);
display.setTextColor(SSD1306_WHITE);
display.setCursor(0, 0);
display.println("Press to Calibrate");
display.display();
pinMode(TarePin, INPUT_PULLUP);
pinMode(OverPin, OUTPUT);
pinMode(GoodPin, OUTPUT);
pinMode(UnderPin, OUTPUT);
scale.begin(LOADCELL_DOUT_PIN, LOADCELL_SCK_PIN);
delay(200);
scale.set_scale();
scale.set_scale(calValue);
scale.tare();
int wificnt = 0;
WiFi.begin(ssid, password);
while (WiFi.status() != WL_CONNECTED && wificnt < 10) {
Serial.print (".");
wificnt ++;
delay(200);
} //try 20sec to connect to Wifi in order to perform OTA update
ESPhttpUpdate.rebootOnUpdate(upd_reboot);
t_httpUpdate_return ret = ESPhttpUpdate.update(upd_server, 80, upd_file, upd_version);
EEPROM.begin(512);
EEPROM.get(CalEepromAdress, calValue);
EEPROM.get(TarEepromAdress, tareValue);
delay(2000); //Giving two sec to perform calibration at boot
if(digitalRead(TarePin) == LOW){
Serial.println("\nIn Calibration...");
scale.set_scale();
scale.tare();
digitalWrite(UnderPin, HIGH); //turning all leds ON
digitalWrite(OverPin, HIGH);
digitalWrite(GoodPin, HIGH);
display.clearDisplay();
display.setCursor(0,0);
display.print("Calibrate with "); display.println(known_mass);
display.display();
Serial.print("Calibrate with "); Serial.println(known_mass);
delay(2000); //Two more seconds to release the button
while (digitalRead(TarePin) == HIGH){ delay(200); Serial.print("."); } //Wait for the button to be pushed, after putting the calibrated weight on the scale
calValue = (scale.get_units(10)) / known_mass;
EEPROM.put(CalEepromAdress, calValue); //Save the calibration to EEPROM
display.clearDisplay();
display.setCursor(0,0);
display.print("Calibrated to "); display.println(calValue);
display.display();
Serial.print("\nCalibrated to "); Serial.println(calValue);
scale.set_scale(calValue);
delay(1000);
}
tareValue = (scale.get_units(20)); //Perform an initial tare
scale.set_offset(tareValue);
scale.tare();EEPROM.put(TarEepromAdress, tareValue); //Save TARE into EEPROM - not really needed here
EEPROM.end();
}
void loop() {
display.clearDisplay();
if(digitalRead(TarePin) == LOW){ //if button pressed - perform tare
Serial.println("\nTare...");
digitalWrite(UnderPin, HIGH); //turn all leds on
digitalWrite(GoodPin, HIGH);
digitalWrite(OverPin, HIGH);
tareValue = (scale.get_units(20));
scale.set_offset(tareValue);
display.clearDisplay();
display.setTextSize(2);
display.setCursor(0,0);
display.print(" TARE to "); display.println(tareValue);
display.display();
Serial.print("TARE to "); Serial.println(tareValue);
} //end of TARE
readValue = (scale.get_units(10) - tareValue);
//readValue = (scale.read_average(20) - tareValue);
Serial.println(readValue);
display.clearDisplay();
display.setTextSize(4);
display.setCursor(5, 0);
display.print(readValue);
display.setTextSize(2);
display.setCursor(116, 17);
display.println("g");
display.display();
digitalWrite(UnderPin, LOW); //turn all leds off
digitalWrite(GoodPin, LOW);
digitalWrite(OverPin, LOW);
if(readValue < 3.49){
digitalWrite(UnderPin, HIGH); //Red Led - below 3.5g
}
if(readValue > 3.48 && readValue < 3.80){
digitalWrite(GoodPin, HIGH); //Green Led - OK
}
if(readValue > 3.79){
digitalWrite(OverPin, HIGH); //Blue Led - too heavy
}
// delay(100);
}
Wednesday, February 03, 2021
ESP Scale pushing to server
include "HX711.h"
#include "ESP8266WiFi.h"
#include "EEPROM.h"
#include "ESP8266httpUpdate.h"
#define upd_version "6a"
#define upd_reboot true
#define upd_server "123.45.67.89"
#define upd_file "/update/index.php"
const int LOADCELL_DOUT_PIN = D4;
const int LOADCELL_SCK_PIN = D3;
int CalEepromAdress = 101;
int TarEepromAdress = 111;
int DevEepromAdress = 121;
float calibrationValue = 442.06;// See ScaleCalibrate.ino for this. override by EEPROM
float tareValue = 472; // override by EEPROM
String thisScale = "LC000"; // override by EEPROM
char server[] = "123.45.67.90";
String uploadfile = "process.php";
String postVariable = "data=";
const char* ssid = "MyWiFi";
const char* password = "MyP@ssword";
HX711 scale;
WiFiClient client;
ADC_MODE(ADC_VCC);
void setup() {
// Serial.begin(115200);
EEPROM.begin(512);
EEPROM.get(CalEepromAdress, calibrationValue);
EEPROM.get(TarEepromAdress, tareValue);
EEPROM.get(DevEepromAdress, thisScale);
EEPROM.end();
scale.begin(LOADCELL_DOUT_PIN, LOADCELL_SCK_PIN);
scale.set_scale(calibrationValue);
WiFi.begin(ssid, password);
while (WiFi.status() != WL_CONNECTED) {
delay(200);
}
ESPhttpUpdate.rebootOnUpdate(upd_reboot);
t_httpUpdate_return ret = ESPhttpUpdate.update(upd_server, 80, upd_file, upd_version);
}
void loop() {
String postData = postVariable + thisScale + "," + ESP.getVcc() + "," + (scale.get_units(10) - tareValue) + "," + upd_version;
if (client.connect(server, 80)) {
client.print("POST /");
client.print(uploadfile);
client.println(" HTTP/1.1");
client.print("Host: ");
client.println (server);
client.println("Content-Type: application/x-www-form-urlencoded");
client.print("Content-Length: ");
client.println(postData.length());
client.println();
client.print(postData);
}
if (client.connected()) {
client.stop();
}
scale.power_down();
ESP.deepSleep(300e6);
}
Saturday, January 02, 2021
ESP OTA update - server side
<?php
date_default_timezone_set('America/New_York');
header('Content-type: text/plain; charset=utf8', true);
$pattern = ".php";
$debuglog = "/var/log/ESP8266-ESPUpdate.log";
//update files must be named "LoadCell-$Version_number.bin"
foreach(glob('./bin/LoadCell*.{bin}', GLOB_BRACE) as $filename){
$filenm = pathinfo($filename, PATHINFO_FILENAME);
$arr = explode('-', $filenm);
$upd_version = $arr[ count($arr) -1 ];
error_log("\n".'['.date('Y-M-d H:m:s').'] Filename: '.$filename.' Shortname: '.$filenm.' Version: '.$upd_version."\n", 3, $debuglog);
}
function check_header($name, $value = false) {
if(!isset($_SERVER[$name])) {
return false;
}
if($value && $_SERVER[$name] != $value) {
return false;
}
return true;
}
function sendFile($path) {
header($_SERVER["SERVER_PROTOCOL"].' 200 OK', true, 200);
header('Content-Type: application/octet-stream', true);
header('Content-Disposition: attachment; filename='.basename($path));
header('Content-Length: '.filesize($path), true);
header('x-MD5: '.md5_file($path), true);
readfile($path);
}
if(!check_header('HTTP_USER_AGENT', 'ESP8266-http-Update'))
{
header($_SERVER["SERVER_PROTOCOL"].' 403 Forbidden', true, 403);
echo "only for ESP8266 updater! (UA)\n";
error_log("\n".'['.date('YYYY-MM-dd HH:mm:ss').'] Not correct user_agent.\n\n', 3, $debuglog);
exit();
}
if(
!check_header('HTTP_X_ESP8266_STA_MAC') ||
!check_header('HTTP_X_ESP8266_AP_MAC') ||
!check_header('HTTP_X_ESP8266_FREE_SPACE') ||
!check_header('HTTP_X_ESP8266_SKETCH_SIZE') ||
!check_header('HTTP_X_ESP8266_SKETCH_MD5') ||
!check_header('HTTP_X_ESP8266_CHIP_SIZE') ||
!check_header('HTTP_X_ESP8266_SDK_VERSION')
) {
header($_SERVER["SERVER_PROTOCOL"].' 403 Forbidden', true, 403);
echo "only for ESP8266 updater! (header)\n";
error_log("\n".'['.date('Y-M-d H:m:s').'] Not correct headers.\n\n', 3, $debuglog);
exit();
}
// foreach (getallheaders() as $name => $value) {
// error_log("\n".'['.date('Y-M-d H:m:s').'] Header_name: '.$name.": \t".$value, 3, $debuglog);
// }
if (($_SERVER['HTTP_X_ESP8266_VERSION']) < $upd_version && $_SERVER["HTTP_X_ESP8266_SKETCH_MD5"] != md5_file($filename)) {
sendFile($filename);
error_log("\n".'['.date('Y-M-d H:m:s').'] NEED UPDATE! ', 3, $debuglog);
error_log("\n".'['.date('Y-M-d H:m:s').'] Ver on server: '.($upd_version).' Ver remote: '.($_SERVER['HTTP_X_ESP8266_VERSION']), 3, $debuglog);
error_log("\n".'['.date('Y-M-d H:m:s').'] MD5 on server: '.(md5_file($filename)).' Value remote: '.($_SERVER['HTTP_X_ESP8266_SKETCH_MD5'])."\n", 3, $debuglog);
} else {
error_log("\n".'['.date('Y-M-d H:m:s').'] NO NEED. Ver equal, small or same MD5', 3, $debuglog);
error_log("\n".'['.date('Y-M-d H:m:s').'] Ver on server: '.($upd_version).' Ver remote: '.($_SERVER['HTTP_X_ESP8266_VERSION']), 3, $debuglog);
error_log("\n".'['.date('Y-M-d H:m:s').'] MD5 on server: '.(md5_file($filename)).' Value remote: '.($_SERVER['HTTP_X_ESP8266_SKETCH_MD5'])."\n", 3, $debuglog);
}
?>
Wednesday, December 02, 2020
ESP WiFi sniffer with OLED and http upload
#include "oled.h"
ADC_MODE(ADC_VCC);
OLED Display=OLED(D1,D2);
int RawPort = A0;
char server[] = "192.168.1.101";
String uploadfile = "wifi.php";
String postVariable = "WiFi=";
const char* ssid = "MyWiFi";
const char* password = "P@55w0rd";
String total = "";
void setup() {
// Serial.begin(115200);
// Serial.println("");
Display.begin();
Display.setTTYMode(true);
pinMode(LED_BUILTIN, OUTPUT);
WiFi.mode(WIFI_STA);
WiFi.disconnect();
delay(100);
Display.print("Battery: ");
Display.print(ESP.getVcc());
// Display.print("\n\rSetup done");
}
void loop() {
// int Batt = ESP.getVcc();
// Serial.print("Battery voltage is: "+Batt);
// Display.print(ESP.getVcc());
// Serial.print("Wifi scan...");
Display.set_contrast(128);
Display.print("\n\rScan...");
int n = WiFi.scanNetworks();
// Serial.println(" done");
Display.println(" done");
if (n == 0) {
// Serial.println("No Networks Found");
Display.printf("No Networks Found");
digitalWrite(LED_BUILTIN, LOW);
}
else {
// Serial.print(n);
// Serial.println(" Networks found");
digitalWrite(LED_BUILTIN, HIGH);
Display.set_contrast(8);
Display.printf("%d networks found",n);
String nr = String(n) + " APs detected. ";
for (int i = 0; i < n; ++i) {
// Serial.print(i + 1);
// Serial.print(": ");
// Serial.print(WiFi.SSID(i));
// Serial.print(" RSSI: ");
// Serial.print(WiFi.RSSI(i));
// Serial.print(" MAC: ");
// Serial.print(WiFi.BSSIDstr(i));
// Serial.print(" Enc: ");
// Serial.println(encType(i));
Display.println();
Display.print(i + 1);
Display.print(": ");
Display.print(WiFi.SSID(i));
Display.print(" (");
Display.print(WiFi.RSSI(i));
Display.println(")");
Display.print(" ");
Display.print(WiFi.BSSIDstr(i));
total = total+String(i+1)+": "+String(WiFi.SSID(i))+" "+String(WiFi.BSSIDstr(i))+" "+String(WiFi.RSSI(i))+"db "+String(encType(i))+". ";
delay(500);
}
WiFi.scanDelete();
delay (500);
Display.println("\n\rSleep for 1min...");
WiFiClient client;
WiFi.begin(ssid, password);
while (WiFi.status() != WL_CONNECTED) {
delay(500);
}
String postData = postVariable + nr + total;
// Serial.print("Transmitted data: ");
// Serial.println(postData);
if (client.connect(server, 80)) {
client.print("POST /");
client.print(uploadfile);
client.println(" HTTP/1.1");
client.print("Host: ");
client.println (server);
client.println("Content-Type: application/x-www-form-urlencoded");
client.print("Content-Length: ");
client.println(postData.length());
client.println();
client.print(postData);
}
if (client.connected()) {
client.stop();
}
// Serial.println("Sleeping ");
Display.set_power(false);
// delay(10000);
ESP.deepSleep(6e+7); // 60 sec
}
}
// Readable Encryption Type
String encType(int id){
String type;
if(WiFi.encryptionType(id) == ENC_TYPE_WEP){ type=" WEP";
}else if(WiFi.encryptionType(id) == ENC_TYPE_TKIP){ type="WPA-TKIP";
}else if(WiFi.encryptionType(id) == ENC_TYPE_CCMP){ type="WPA2-CCMP";
}else if(WiFi.encryptionType(id) == ENC_TYPE_AUTO){ type="WPA-WPA2";
}else if(WiFi.encryptionType(id) == ENC_TYPE_NONE){ type="OPEN";
}
return type;
}

