Archiv der Kategorie: Allgemein

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ExpressLRS gibt’s 3.0

  • mit WIFI-Betaflight-Config-Link.

DJI FPV Goggles gehackt

  • fpvwtf hat das BF-OSD auf die DJI-Hardware gebracht.

Ich hab eine neue Fritzbox

  • VPN geht wieder.
  • Fritz!fon-DECT-Telefon ist bestellt.
  • Die Box ist viel schneller als der Schrott von Vodafone!

Mikrowellen-Reparatur

Ich lebe noch!

Zu schade zum Wegschmeißen. Medion MD11711 4in1. Und ich konnte mich nicht für eine neue entscheiden…

Total verschmorter Stecker am Trafo. Ich hab die Kabel jetzt direkt angelötet. Wenn das zu heiß läuft, lötet sich’s halt ab… Kabelbinder fixieren die Kabel, damit sie nirgends dran kommen.

Mini-Retro-Hifi

Wartung und Reparatur der Onkyo-Komponenten, frisch von privat eingekauft aus Erstbesitz und optisch super. Nur leider haben die Teile fast alle einen Service dringend nötig:

  • Verstärker A-911: Poti knistert und ungleich rechts/links, Quellenwahlrad springt.
  • CD C-711: Springt/stottert/setzt aus.
  • Tuner T-411: Trifft nicht genau die Frequenz.
  • Kassette K-611: Tonköpfe kommen nicht in die Abspielposition, ein Capstan klemmt.

Kassettendeck-Reparatur #1

Das Deck braucht neue Riemen. Ich habe auch das Capstan-Spiel eingestellt. Gestern kochte ich den Steuerriemen, dann lief das Deck. Heute leider nicht mehr. Also neue Riemen bestellt…

Neuer Copter: FLOSS210

Fix HGLRC F722 Baro on BF 4.2.11 or 4.3:

set baro_bustype = SPI
set baro_spi_device = 1
set baro_i2c_device = 0
save

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Handlicher Suchscheinwerfer

Ich hab mir eine helle Taschenlampe eingebildet.

Da kam mir die Astrolux EC06 im Angebot mit Gutschein für ~64 Euro gerade recht.

Die Lampe ist so groß wie ca. eine Getränkedose 0,33l.

Da drin liefern 3x 21700er LiIonen-Zellen (nicht mitgeliefert) den Saft.

6x Cree XHP50.2 machen Licht. Eine solche kann bis zu 2654lm erreichen. Die Lampe wird mit bis zu 16000lm beworben, könnte also stimmen. Der Strahl ist recht breit.

Die Lampe wiegt leer schon fast 500g.

Man kann sie auch mit USB laden.

Die Steuerung ist Open-Source, Anduril 2. Einfach, aber sehr mächtig.

Wenn man sie anschaltet, ist sie ganz zahm. Per Doppelklick entfaltet sie erst die volle Power – da geht dann die Sonne auf. Es ist blendend hell!

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Wifi-GPS-Topspeed-Meter

Arduino on Lilygo OLED Lora ESP32 (board TTGO-Lora32-OLED V1″)

#define USE_OLED

#ifdef USE_OLED
//Libraries for OLED Display
#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>
#endif

#include <WiFi.h>
#include <WiFiClient.h>
#include <WiFiAP.h>

const char *ssid = "GPSWIFI";
const char *password = "12345678";

WiFiServer server(80);

const unsigned char ubxRate1Hz[]  = 
  { 0x06,0x08,0x06,0x00,0xE8,0x03,0x01,0x00,0x01,0x00 };
const unsigned char ubxRate5Hz[]  =
  { 0x06,0x08,0x06,0x00,200,0x00,0x01,0x00,0x01,0x00 };
const unsigned char ubxRate10Hz[]  =
  { 0x06,0x08,0x06,0x00,100,0x00,0x01,0x00,0x01,0x00 };
const unsigned char ubxRate16Hz[]  =
  { 0x06,0x08,0x06,0x00,50,0x00,0x01,0x00,0x01,0x00 };

// Disable specific NMEA sentences
const unsigned char ubxDisableGGA[]  =
  { 0x06,0x01,0x08,0x00,0xF0,0x00,0x00,0x00,0x00,0x00,0x00,0x01 };
const unsigned char ubxDisableGLL[]  =
  { 0x06,0x01,0x08,0x00,0xF0,0x01,0x00,0x00,0x00,0x00,0x00,0x01 };
const unsigned char ubxDisableGSA[]  =
  { 0x06,0x01,0x08,0x00,0xF0,0x02,0x00,0x00,0x00,0x00,0x00,0x01 };
const unsigned char ubxDisableGSV[]  =
  { 0x06,0x01,0x08,0x00,0xF0,0x03,0x00,0x00,0x00,0x00,0x00,0x01 };
const unsigned char ubxDisableRMC[]  =
  { 0x06,0x01,0x08,0x00,0xF0,0x04,0x00,0x00,0x00,0x00,0x00,0x01 };
const unsigned char ubxDisableVTG[]  =
  { 0x06,0x01,0x08,0x00,0xF0,0x05,0x00,0x00,0x00,0x00,0x00,0x01 };
const unsigned char ubxDisableZDA[]  =
  { 0x06,0x01,0x08,0x00,0xF0,0x08,0x00,0x00,0x00,0x00,0x00,0x01 };


#define Battadc 36
#define ADC_FACTOR (0.000635*2.0*1.362)
#define BATT_LOW 3.5

#define SDA 21
#define SCL 22

#ifdef USE_OLED
//OLED pins
#define OLED_SDA 4
#define OLED_SCL 15 
#define OLED_RST 16
#define SCREEN_WIDTH 128 // OLED display width, in pixels
#define SCREEN_HEIGHT 64 // OLED display height, in pixels

Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RST);
#endif

bool enable_dbg;
bool sig_valid, sig_rxok;
float sig_speed, saved_spd;
int sig_sats;
#define NUM_V_ENTRIES 5
float maxspeed[NUM_V_ENTRIES];
int vbatt;

// Cut out the wanted substring from a comma-separated string
static String extract_val(char *buf, int len, int cpos)
{
  String str="";
  int i,cc=0,cs=0,ce=255;
  for (i=0;i<len;i++) {
    if (buf[i]==',') {
      cc++; // count commas
      if(cc==cpos) cs=i+1;
      if(cc==cpos+1) {ce=i; break;}
    }
    else if (buf[i]=='*' || buf[i]=='\r')
      ce=i;
  }
  if (cs == 0) // no comma seen - no result
    return str;
  int s = min(ce-cs, 255);
  for (i=0; i<s; i++) // build string, could be nicer...
    str+=(char)buf[cs+i];
//  memcpy(tgt, &buf[cs], s);
  return str;
}

void parse_gps(char c) {
  static char buf[127];
  static int pos=0;
  if (c=='\n') {
    buf[pos]=0;
    if (buf[2]=='V' && buf[3]=='T' && buf[4]=='G') {
      sig_rxok = true;
      String s = extract_val(buf, pos, 7);
      if (s.length() > 0)
        sig_valid = true;
      Serial.println(s);
      sig_speed = s.toFloat();
      saved_spd = sig_speed;
    }
    else if (buf[2]=='G' && buf[3]=='G' && buf[4]=='A') {
#ifdef USE_OLED
      display.print(buf);
#endif
      String s = extract_val(buf 

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, pos, 7); Serial.println(s); sig_sats = s.toInt(); } } else if (c=='$') pos=0; else if (pos < sizeof(buf)) buf[pos++] = c; } //Warteschleife, die ankommende Daten vom GPS Modul verarbeitet und den Status des Tasters prüft static void smartdelay(unsigned long ms) { unsigned long start = millis(); do { while (Serial2.available()) { char c=Serial2.read(); parse_gps(c); if (enable_dbg) Serial.print(c); //display.print(c); } //display.display(); } while (millis() - start < ms); } static void sendUBX( const unsigned char *progmemBytes, size_t len ) { Serial2.write( 0xB5 ); // SYNC1 Serial2.write( 0x62 ); // SYNC2 uint8_t a = 0, b = 0; while (len-- > 0) { uint8_t c = ( *progmemBytes++ ); a += c; b += a; Serial2.write( c ); } Serial2.write( a ); // CHECKSUM A Serial2.write( b ); // CHECKSUM B delay(100); } static void updateRate() { sendUBX(ubxRate5Hz, 10); } void setup() { pinMode(0, INPUT_PULLUP); // button pinMode(SCL, INPUT_PULLUP); // I2C of GPS compass pinMode(SDA, INPUT_PULLUP); // analogSetAttenuation(ADC_0db); // control sensitivity; ADC_11db, ADC_6db, ADC_2_5db, ADC_0db // pinMode(Battadc, INPUT); // adcAttachPin(Battadc); Serial.begin(115200); // debug Serial2.begin(9600,SERIAL_8N1,12,13); // GPS #ifdef USE_OLED //reset OLED display via software pinMode(OLED_RST, OUTPUT); digitalWrite(OLED_RST, LOW); delay(20); digitalWrite(OLED_RST, HIGH); //initialize OLED Wire.begin(OLED_SDA, OLED_SCL); if(!display.begin(SSD1306_SWITCHCAPVCC, 0x3c, false, false)) { // Address 0x3C for 128x32 //Serial.println(F("SSD1306 allocation failed")); for(;;); // Don't proceed, loop forever } #endif // setup WIFI server WiFi.softAP(ssid, password); IPAddress myIP = WiFi.softAPIP(); // usually 192.168.4.1 server.begin(); #ifdef USE_OLED display.setTextColor(WHITE); display.setTextSize(1); display.clearDisplay(); display.setCursor(0, 0); display.println("Simon's WIFI GPS"); display.println("IP address:"); display.println(myIP); display.display(); #endif delay(2000); sendUBX(ubxDisableGLL, 12); sendUBX(ubxDisableGSA, 12); sendUBX(ubxDisableGSV, 12); sendUBX(ubxDisableRMC, 12); sendUBX(ubxDisableZDA, 12); Serial2.print("$PUBX,41,1,0007,0003,19200,0*25\r\n"); Serial2.flush(); delay(100); Serial2.end(); Serial2.begin(19200,SERIAL_8N1,12,13); delay(1000); updateRate(); } void wifi() { WiFiClient client = server.available(); // listen for incoming clients if (client) { // if you get a client, char i; Serial.println("New Client."); // print a message out the serial port String currentLine = ""; // make a String to hold incoming data from the client while (client.connected()) { // loop while the client's connected if (client.available()) { // if there's bytes to read from the client, char c = client.read(); // read a byte, then // Serial.write(c); // print it out the serial monitor if (c == '\n') { // if the byte is a newline character // if the current line is blank, you got two newline characters in a row. // that's the end of the client HTTP request, so send a response: if (currentLine.length() == 0) { // HTTP headers always start with a response code (e.g. HTTP/1.1 200 OK) // and a content-type so the client knows what's coming, then a blank line: client.println("HTTP/1.1 200 OK"); client.println("Content-type:text/html"); client.println(); // the content of the HTTP response follows the header: char tmp[32]; client.print("<html><head><meta http-equiv=\"refresh\" content=\"10; URL=/\" /></head>"); client.print("<body style=\"background-color:black;\"><h1 style=\"color:white;font-size:80px\">Simon's WIFI GPS</h1>"); client.println("<p style=\"color:white;font-size:60px\"><b>"); sprintf(tmp, "Max = %4.1f km/h", maxspeed[0]); client.print(tmp); client.println("</p><p style=\"color:white;font-size:30px\">"); for (i=1;i<NUM_V_ENTRIES;i++) { sprintf(tmp, "%4.1f km/h", maxspeed[i]); client.print(tmp); client.println("<br>"); } sprintf(tmp, "<br>Batt = %2.3f V", (float)vbatt*ADC_FACTOR); client.print(tmp); client.println("<br>"); sprintf(tmp, "<br>Signal rx ok = %d", sig_rxok); client.print(tmp); client.println("<br>"); sprintf(tmp, "<br># of satellites = %d", sig_sats); client.print(tmp); client.println("<br>"); client.print("<br><br><a href=\"/R\">RESET</a> Vmax.<br></p></body></html>"); // The HTTP response ends with another blank line: client.println(); // break out of the while loop: break; } else { // if you got a newline, then clear currentLine: currentLine = ""; } } else if (c != '\r') { // if you got anything else but a carriage return character, currentLine += c; // add it to the end of the currentLine } // Check to see if the client request was "GET /H" or "GET /L": if (currentLine.endsWith("GET /R")) { for (i=0; i<NUM_V_ENTRIES; i++) maxspeed[i] = 0.0; } } } // close the connection: client.stop(); // Serial.println("Client Disconnected."); } } void loop() { int i; bool spdwritten = false; char tmp[32]; float spd; smartdelay(0); #ifdef USE_OLED display.clearDisplay(); // drawString(x,y,text);? or ACROBOTIC_SSD1306 with setTextXY/putString display.setCursor(0, 0); #endif if (sig_valid) { spd = sig_speed; sig_speed = 0.0; // show maximum speed, with 5 places to see glitches #ifdef USE_OLED display.println("Geschwindigkeit (max)"); #endif for (i=0; i<NUM_V_ENTRIES; i++) { if (spd > maxspeed[i] && !spdwritten) { maxspeed[i] = spd; spdwritten = true; break; } } #ifdef USE_OLED for (i=0; i<NUM_V_ENTRIES; i++) { if (i==0) display.setTextSize(2); sprintf(tmp, "%4.1f km/h", maxspeed[i]); display.println(tmp); if (i==0) display.setTextSize(1); } // show current speed sprintf(tmp,"S%4.1f Sats %3d", saved_spd, sig_sats); display.print(tmp); } else { display.println("No GPS fix."); if (sig_rxok) display.println("GPS RX ok"); sprintf(tmp," Sats %3d", sig_sats); display.print(tmp); #endif } vbatt = analogRead(Battadc); #ifdef USE_OLED if ((float)vbatt*ADC_FACTOR < BATT_LOW) { display.setCursor(108, 32); display.print("LOW"); } display.display(); #endif if (digitalRead(0)==0) { // clear for (i=0;i<NUM_V_ENTRIES; i++) maxspeed[i] = 0.0; #ifdef USE_OLED display.clearDisplay(); #endif } wifi(); }

RC Car Speedometer

Basierend auf einem TTGO LoRa mit OLED 128×64 mit BN-880 GPS.

Anschluss

  • Batterie/Lipo an den unteren Bat-Connector
  • GPS an 5V/12(RX)/13(TX)/GND

Arduino mit der ESP32-Erweiterung, Board TTGO-LoRa-OLED.

Features

  • 5 Hz GPS-Datenrate
  • Die 5 höchsten Geschwindigkeiten, die höchste extra groß angezeigt
  • Satellitenanzahl-Anzeige

Hier der Code:

//Libraries for OLED Display
#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>

const unsigned char ubxRate1Hz[]  = 
  { 0x06,0x08,0x06,0x00,0xE8,0x03,0x01,0x00,0x01,0x00 };
const unsigned char ubxRate5Hz[]  =
  { 0x06,0x08,0x06,0x00,200,0x00,0x01,0x00,0x01,0x00 };
const unsigned char ubxRate10Hz[]  =
  { 0x06,0x08,0x06,0x00,100,0x00,0x01,0x00,0x01,0x00 };
const unsigned char ubxRate16Hz[]  =
  { 0x06,0x08,0x06,0x00,50,0x00,0x01,0x00,0x01,0x00 };

// Disable specific NMEA sentences
const unsigned char ubxDisableGGA[]  =
  { 0x06,0x01,0x08,0x00,0xF0,0x00,0x00,0x00,0x00,0x00,0x00,0x01 };
const unsigned char ubxDisableGLL[]  =
  { 0x06,0x01,0x08,0x00,0xF0,0x01,0x00,0x00,0x00,0x00,0x00,0x01 };
const unsigned char ubxDisableGSA[]  =
  { 0x06,0x01,0x08,0x00,0xF0,0x02,0x00,0x00,0x00,0x00,0x00,0x01 };
const unsigned char ubxDisableGSV[]  =
  { 0x06,0x01,0x08 

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,0x00,0xF0,0x03,0x00,0x00,0x00,0x00,0x00,0x01 }; const unsigned char ubxDisableRMC[] = { 0x06,0x01,0x08,0x00,0xF0,0x04,0x00,0x00,0x00,0x00,0x00,0x01 }; const unsigned char ubxDisableVTG[] = { 0x06,0x01,0x08,0x00,0xF0,0x05,0x00,0x00,0x00,0x00,0x00,0x01 }; const unsigned char ubxDisableZDA[] = { 0x06,0x01,0x08,0x00,0xF0,0x08,0x00,0x00,0x00,0x00,0x00,0x01 }; #define Battadc 34 //OLED pins #define OLED_SDA 4 #define OLED_SCL 15 #define OLED_RST 16 #define SCREEN_WIDTH 128 // OLED display width, in pixels #define SCREEN_HEIGHT 64 // OLED display height, in pixels #define SDA 21 #define SCL 22 Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RST); bool enable_dbg; bool sig_valid, sig_rxok; float sig_speed, saved_spd; int sig_sats; float maxspeed[5]; // Cut out the wanted substring from a comma-separated string static String extract_val(char *buf, int len, int cpos) { String str=""; int i,cc=0,cs=0,ce=255; for (i=0;i 0) sig_valid = true; Serial.println(s); sig_speed = s.toFloat(); saved_spd = sig_speed; } else if (buf[2]=='G' && buf[3]=='G' && buf[4]=='A') { display.print(buf); String s = extract_val(buf, pos, 7); Serial.println(s); sig_sats = s.toInt(); } } else if (c=='$') pos=0; else if (pos < sizeof(buf)) buf[pos++] = c; } //Warteschleife, die ankommende Daten vom GPS Modul verarbeitet und den Status des Tasters prüft static void smartdelay(unsigned long ms) { unsigned long start = millis(); do { while (Serial2.available()) { char c=Serial2.read(); parse_gps(c); if (enable_dbg) Serial.print(c); //display.print(c); } //display.display(); } while (millis() - start < ms); } static void sendUBX( const unsigned char *progmemBytes, size_t len ) { Serial2.write( 0xB5 ); // SYNC1 Serial2.write( 0x62 ); // SYNC2 uint8_t a = 0, b = 0; while (len-- > 0) { uint8_t c = ( *progmemBytes++ ); a += c; b += a; Serial2.write( c ); } Serial2.write( a ); // CHECKSUM A Serial2.write( b ); // CHECKSUM B delay(100); } static void updateRate() { sendUBX(ubxRate5Hz, 10); } void setup() { pinMode(0, INPUT_PULLUP); // button pinMode(SCL, INPUT_PULLUP); // I2C of GPS compass pinMode(SDA, INPUT_PULLUP); analogSetAttenuation(ADC_0db); // control sensitivity; ADC_11db, ADC_6db, ADC_2_5db, ADC_0db pinMode(Battadc, INPUT); adcAttachPin(Battadc); Serial.begin(115200); // debug Serial2.begin(9600,SERIAL_8N1,12,13); // GPS //reset OLED display via software pinMode(OLED_RST, OUTPUT); digitalWrite(OLED_RST, LOW); delay(20); digitalWrite(OLED_RST, HIGH); //initialize OLED Wire.begin(OLED_SDA, OLED_SCL); if(!display.begin(SSD1306_SWITCHCAPVCC, 0x3c, false, false)) { // Address 0x3C for 128x32 //Serial.println(F("SSD1306 allocation failed")); for(;;); // Don't proceed, loop forever } display.setTextColor(WHITE); display.setTextSize(1); display.clearDisplay(); display.display(); delay(2000); sendUBX(ubxDisableGLL, 12); sendUBX(ubxDisableGSA, 12); sendUBX(ubxDisableGSV, 12); sendUBX(ubxDisableRMC, 12); sendUBX(ubxDisableZDA, 12); Serial2.print("$PUBX,41,1,0007,0003,19200,0*25\r\n"); Serial2.flush(); delay(100); Serial2.end(); Serial2.begin(19200,SERIAL_8N1,12,13); delay(1000); updateRate(); } void loop() { int i; bool spdwritten = false; char tmp[32]; float spd; smartdelay(0); display.clearDisplay(); // drawString(x,y,text);? or ACROBOTIC_SSD1306 with setTextXY/putString display.setCursor(0, 0); if (sig_valid) { spd = sig_speed; sig_speed = 0.0; // show maximum speed, with 5 places to see glitches display.println("Geschwindigkeit (max)"); for (i=0; i<5; i++) { if (spd > maxspeed[i] && !spdwritten) { maxspeed[i] = spd; spdwritten = true; break; } } for (i=0; i<5; i++) { if (i==0) display.setTextSize(2); sprintf(tmp, "%4.1f km/h", maxspeed[i]); display.println(tmp); if (i==0) display.setTextSize(1); } // show current speed sprintf(tmp,"S%4.1f Sats %3d", saved_spd, sig_sats); display.print(tmp); } else { display.println("No GPS fix."); if (sig_rxok) display.println("GPS RX ok"); sprintf(tmp," Sats %3d", sig_sats); display.print(tmp); } display.display(); int vbatt = analogRead(Battadc); if (digitalRead(0)==0) { // clear for (i=0;i<5; i++) maxspeed[i] = 0.0; display.clearDisplay(); } }

F4-XSD – Die nano-FC, die 4 UARTS hat und INAV-kompatibel ist

Target OMNIBUSF4

ebay: https://www.ebay.de/itm/133647148159

Resources

  • UART1: CRSF/SBUS
  • UART3: ESC Telemetry @115200bd
  • UART6: DJI/smartaudio
  • SS1 (rx:ch5=pc8, tx:ch6=pc9): GPS @19200bd
  • BUZ for buzzer
  • M1 for ESC blheli_32 dshot
  • M2-4 for max. 3 servos
  • [9V out for analog video]
  • 4,5V out for GPS, RX
  • Extra 2A BEC for servos

Der Softserial1 liegt auf PWM5 und 6, da musste ich etwas fein-löten:

Pinout SS1: GND 5V TX RX

Pinout BN220 GPS: [batt] VCC RX TX GND

Update: Es gibt eine F7-XSD mit 6(!) HW-UARTS, die kriegt man für etwa 20 Euro. ABER: Nicht INAV-kompatibel!

Update: HGLRC Zeus F722 mini ist mit 3,5 UARTS und einem RX bestückt und INAV-kompatibel. Mamba F722 mini (DJI) sollte auch INAV können.

StrykerQ #2

Heute hab ich meinen zweiten PZ Stryker F-27Q fertig gebaut.

Die riesen Schachtel lag schon jahrelang unterm Bett. Und der erste Stryker ist schon arg ramponiert.

Das Modell bekam einen neuen Regler und Motor.

Hobbywing Skywalker 60 ubec und Sunnysky X2814 1250kv, ja für 6s soll es sein.

Dazu noch alle Schikanen mit F4 Omnibus pro mit inav, GPS und Crossfire. Da gibt’s die Telemetrie auch gleich, Strom, Speed, Entfernung, alles. Und später FPV in die Nase.

Trotz dem schweren Motor mit 108g und Regler mit 65g wird es nicht leicht, den Schwerpunkt zu erreichen. Der Akku sollte also leicht bleiben…

730g bringt er auf die Waage. Ohne Lipo.

Crossfire/ExpressLRS an INAV/BF

Crossfire benötigt lediglich einen UART. Da nimmt man doch gleich den, der sonst SBUS macht. UART1 auf einem Omnibus F4 Pro v3. Damit das klappt, muss die kleine Solderbridge für SBUS/PPM ab!

An den 4pin Micro-JST neben dem Shunt steckt man dann den Empfänger. Die Belegung ist:

[Shunt]
GND
5V
TX1
RX1

Der CRFS-Nano-RX V2 hat:

GND (auf Höhe des U.FL, quadratisch bei den neuen)
5V
Ch1 – TX
Ch2 – RX

Der EP1 vom ExpressLRS sieht da ähnlich aus:

GND (mit kleinem Pad daneben)
VCC 5V
TX
RX

Im INAV-Konfigurator stellt man das Protokoll noch auf CRSF und aktiviert gleich noch die Telemetrie.

Fertig!