Arduino Archieven - Pagina 2 van 21 - DomoticX Knowledge Center

Tag: Arduino

Apparaat – RS232 – Seriële communicatie

by SebastiaanPosted on 2018-12-08 Geplaatst in C++ Script (Arduino), Diverse onderwerpen (Arduino), Diverse onderwerpen (Raspberry Pi), Python Script, Sensor en Module

Het volgende voorbeeld laat zien hoe je HEX strings naar een serieel RS232 apparaat stuurt en dan het “antwoord” uit kan lezen in HEX strings. C++ / Arduino

#include <SoftwareSerial.h>

byte command[2] = {0xAA, 0x41};
byte response[5]; 

SoftwareSerial rs232device(10, 11, SERIAL_8N1); // TX, RX.

void setup() {
  Serial.begin(9600);
  rs232device.begin(9600); 
}

void loop() {
  rs232device.write(command, sizeof(command));
  rs232device.readBytes(response, 5);

  Serial.print(response[0], HEX);Serial.print(" ");
  Serial.print(response[1], HEX);Serial.print(" ");
  Serial.print(response[2], HEX);Serial.print(" ");
  Serial.print(response[3], HEX);Serial.print(" ");
  Serial.println(response[4], HEX);
  delay(500);
}

#include <SoftwareSerial.h>

byte command[2] = {0xAA, 0x41};

byte response[5];

SoftwareSerial rs232device(10, 11, SERIAL_8N1); // TX, RX.

void setup() {

Serial.begin(9600);

rs232device.begin(9600);

}

void loop() {

rs232device.write(command, sizeof(command));

rs232device.readBytes(response, 5);

Serial.print(response[0], HEX);Serial.print(" ");

Serial.print(response[1], HEX);Serial.print(" ");

Serial.print(response[2], HEX);Serial.print(" ");

Serial.print(response[3], HEX);Serial.print(" ");

Serial.println(response[4], HEX);

delay(500);

}

Python / Raspberry Pi

#!/usr/bin/env python

import serial
import time

#-------------------------------------------------------------------------------

def ByteToHex( byteStr ):
    """
    Convert a byte string to it's hex string representation e.g. for output.
    """
    
    # Uses list comprehension which is a fractionally faster implementation than
    # the alternative, more readable, implementation below
    #   
    #    hex = []
    #    for aChar in byteStr:
    #        hex.append( "%02X " % ord( aChar ) )
    #
    #    return ''.join( hex ).strip()        

    return ''.join( [ "%02X " % ord( x ) for x in byteStr ] ).strip()

#-------------------------------------------------------------------------------

def HexToByte( hexStr ):
    """
    Convert a string hex byte values into a byte string. The Hex Byte values may
    or may not be space separated.
    """
    # The list comprehension implementation is fractionally slower in this case    
    #
    #    hexStr = ''.join( hexStr.split(" ") )
    #    return ''.join( ["%c" % chr( int ( hexStr[i:i+2],16 ) ) \
    #                                   for i in range(0, len( hexStr ), 2) ] )
 
    bytes = []

    hexStr = ''.join( hexStr.split(" ") )

    for i in range(0, len(hexStr), 2):
        bytes.append( chr( int (hexStr[i:i+2], 16 ) ) )

    return ''.join( bytes )

#-------------------------------------------------------------------------------

# USB D- = RXD TTL STICK
# USB D+ = TXD TTL STICK

### POORT INSTELLINGEN
ser = serial.Serial()
ser.port = "/dev/ttyUSB0"
ser.baudrate = 9600
ser.parity=serial.PARITY_NONE
ser.stopbits=serial.STOPBITS_ONE
ser.bytesize=serial.EIGHTBITS
ser.timeout=1

try: 
    ser.open()
    print("Connected to: " + ser.portstr)
except Exception, e:
    print "error open serial port: " + str(e)
    exit()

while 1:
  ### METHODE #1
  ser.write([0xAA, 0x41])

  ### METHODE #2
  #ser.write(serial.to_bytes([0xAA,0x41]))

  ### METHODE #3
  #ser.write("\xAA\x41")

  ### METHODE #4
  #ser.write(chr(0xAA))
  #ser.write(chr(0x41))

  ### METHODE #5
  #msg = bytearray([0xAA, 0x41])
  #ser.write(msg)

  #data = ser.read(8) ### AANTAL BYTES LEZEN
  data = ser.readline() ## HELE LIJN LEZEN
  #data = ser.readall() ### ALLES LEZEN

  print "SIZE: ", len(data)
  print "RAW: " + data
  print "HEX1: " + ByteToHex(data)
  print "HEX2: " + data.encode('hex')

  time.sleep(2)

#!/usr/bin/env python

import serial

import time

#-------------------------------------------------------------------------------

def ByteToHex( byteStr ):

"""

Convert a byte string to it's hex string representation e.g. for output.

"""

# Uses list comprehension which is a fractionally faster implementation than

# the alternative, more readable, implementation below

# hex = []

# for aChar in byteStr:

# hex.append( "%02X " % ord( aChar ) )

# return ''.join( hex ).strip()

return ''.join( [ "%02X " % ord( x ) for x in byteStr ] ).strip()

#-------------------------------------------------------------------------------

def HexToByte( hexStr ):

"""

Convert a string hex byte values into a byte string. The Hex Byte values may

or may not be space separated.

"""

# The list comprehension implementation is fractionally slower in this case

# hexStr = ''.join( hexStr.split(" ") )

# return ''.join( ["%c" % chr( int ( hexStr[i:i+2],16 ) ) \

# for i in range(0, len( hexStr ), 2) ] )

bytes = []

hexStr = ''.join( hexStr.split(" ") )

for i in range(0, len(hexStr), 2):

bytes.append( chr( int (hexStr[i:i+2], 16 ) ) )

return ''.join( bytes )

#-------------------------------------------------------------------------------

# USB D- = RXD TTL STICK

# USB D+ = TXD TTL STICK

### POORT INSTELLINGEN

ser = serial.Serial()

ser.port = "/dev/ttyUSB0"

ser.baudrate = 9600

ser.parity=serial.PARITY_NONE

ser.stopbits=serial.STOPBITS_ONE

ser.bytesize=serial.EIGHTBITS

ser.timeout=1

try:

ser.open()

print("Connected to: " + ser.portstr)

except Exception, e:

print "error open serial port: " + str(e)

exit()

while 1:

### METHODE #1

ser.write([0xAA, 0x41])

### METHODE #2

#ser.write(serial.to_bytes([0xAA,0x41]))

### METHODE #3

#ser.write("\xAA\x41")

### METHODE #4

#ser.write(chr(0xAA))

#ser.write(chr(0x41))

### METHODE #5

#msg = bytearray([0xAA, 0x41])

#ser.write(msg)

#data = ser.read(8) ### AANTAL BYTES LEZEN

data = ser.readline() ## HELE LIJN LEZEN

#data = ser.readall() ### ALLES LEZEN

print "SIZE: ", len(data)

print "RAW: " + data

print "HEX1: " + ByteToHex(data)

print "HEX2: " + data.encode('hex')

time.sleep(2)

SIZE:  7
RAW: WAWA
HEX1: 57 41 57 41 00 00 00
HEX2: 57415741000000

SIZE: 7

RAW: WAWA

HEX1: 57 41 57 41 00 00 00

HEX2: 57415741000000

Getagd met Apparaat, Arduino, computer, hex strings, Python, Raspberry pi, RS232, Sensor, Serieel, seriele

Arduino IDE board – Digistump / Digispark

by SebastiaanPosted on 2018-12-03 Geplaatst in Arduino IDE boards

Website Informatie (ENG): The Digispark is an Attiny85 based microcontroller development board similar to the Arduino line, only cheaper, smaller, and a bit less powerful. With a whole host of shields to extend its functionality and the ability to use …

Arduino IDE board – Digistump / Digispark Read More »

Getagd met Arduino, Arduino IDe, Boards, digispark, digistump

AVR Microcontroller – ATMEGA minimale onderdelen

by SebastiaanPosted on 2018-12-02 Geplaatst in Diverse onderwerpen (Arduino)

ATMEGA328 Minimale onderdelen voor een ATMEGA 328P: Bron All you need apart from the programmer and the chip is a couple of decoupling caps, and some way of connecting the programming signals to the breadboard. So: 1 largish electrolytic cap …

AVR Microcontroller – ATMEGA minimale onderdelen Read More »

Getagd met Arduino, Atmega328, onderdelen

DMX – USB Adapter met MAX485 en Arduino

by SebastiaanPosted on 2018-09-03 Geplaatst in DMX

Bron: fritzing.org Hieronder een voorbeeld om een DMX adapter te maken met een Arduino i was looking for a way to control some RGB LED Light Strips using connected to a DMX Decoder with my computer and didn’t want to buy a expensive …

DMX – USB Adapter met MAX485 en Arduino Read More »

Getagd met adapter, Arduino, DMX, informatie, USB

ENC28J60 – Ethernet Module MQTT voorbeeld

by SebastiaanPosted on 2018-05-24 Geplaatst in C++ Script (Arduino), MQTT

Op deze pagina vind je een voorbeeld om via MQTT data te verzenden met een Arduino, ENC28J60 Ethernet module en BME280 sensor. In onderstaande code wel het MQTT adres nog aanpassen:

/*
BME280 MQTT Script
 
Connecting the BME280 Sensor:
Sensor              ->  Board
-----------------------------
Vin (Voltage In)        ->  3.3V
Gnd (Ground)            ->  Gnd
SDA (Serial Data)       ->  D2 on NODEMCU / A4 on Uno/Pro-Mini, 20 on Mega2560/Due, 2 Leonardo/Pro-Micro
SCK/SCL (Serial Clock)  ->  D1 on NodeMCU / A5 on Uno/Pro-Mini, 21 on Mega2560/Due, 3 Leonardo/Pro-Micro
*/

#include <UIPEthernet.h>
#include "PubSubClient.h"
#include <BME280I2C.h>
#include <Wire.h>

#define CLIENT_ID       "UnoMQTT"
#define INTERVAL        3000 // 3 sec delay between publishing

uint8_t mac[6] = {0x00,0x01,0x02,0x03,0x04,0x05};
char msgBuffer[20];
char tempchar[10];
char humchar[10];

EthernetClient ethClient;
PubSubClient mqttClient;
BME280I2C bme; //Default : forced mode, standby time = 1000 ms Oversampling = pressure x1, temperature x1, humidity x1, filter off,

long previousMillis;

void setup() {
  // setup ethernet communication using DHCP
  Ethernet.begin(mac);
  // setup mqtt client
  mqttClient.setClient(ethClient);
  mqttClient.setServer("192.168.2.6",1883); //MQTT SERVER

  // start BME280
  Wire.begin();
  bme.begin();
  previousMillis = millis();
}

void loop() {
  // check interval
  if(millis() - previousMillis > INTERVAL) {
    sendData();
    previousMillis = millis();
  }
  mqttClient.loop();
}

void sendData() {
   float temp(NAN), hum(NAN), pres(NAN);
   BME280::TempUnit tempUnit(BME280::TempUnit_Celsius);
   BME280::PresUnit presUnit(BME280::PresUnit_Pa);
   bme.read(pres, temp, hum, tempUnit, presUnit);

   // Converteer float naar string
   String tempstring = String(temp);
   String humstring = String(hum);
 
   // Converteer String to Array
   tempstring.toCharArray(tempchar, tempstring.length() + 1);
   humstring.toCharArray(humchar, humstring.length() + 1);

  if(mqttClient.connect(CLIENT_ID)) {
    mqttClient.publish("inblaastemperatuur", tempchar);
    mqttClient.publish("inblaasluchtvochtigheid", humchar); 
  }
}

BME280 MQTT Script

Connecting the BME280 Sensor:

Sensor -> Board

-----------------------------

Vin (Voltage In) -> 3.3V

Gnd (Ground) -> Gnd

SDA (Serial Data) -> D2 on NODEMCU / A4 on Uno/Pro-Mini, 20 on Mega2560/Due, 2 Leonardo/Pro-Micro

SCK/SCL (Serial Clock) -> D1 on NodeMCU / A5 on Uno/Pro-Mini, 21 on Mega2560/Due, 3 Leonardo/Pro-Micro

#include <UIPEthernet.h>

#include "PubSubClient.h"

#include <BME280I2C.h>

#include <Wire.h>

#define CLIENT_ID "UnoMQTT"

#define INTERVAL 3000 // 3 sec delay between publishing

uint8_t mac[6] = {0x00,0x01,0x02,0x03,0x04,0x05};

char msgBuffer[20];

char tempchar[10];

char humchar[10];

EthernetClient ethClient;

PubSubClient mqttClient;

BME280I2C bme; //Default : forced mode, standby time = 1000 ms Oversampling = pressure x1, temperature x1, humidity x1, filter off,

long previousMillis;

void setup() {

// setup ethernet communication using DHCP

Ethernet.begin(mac);

// setup mqtt client

mqttClient.setClient(ethClient);

mqttClient.setServer("192.168.2.6",1883); //MQTT SERVER

// start BME280

Wire.begin();

bme.begin();

previousMillis = millis();

}

void loop() {

// check interval

if(millis() - previousMillis > INTERVAL) {

sendData();

previousMillis = millis();

}

mqttClient.loop();

}

void sendData() {

float temp(NAN), hum(NAN), pres(NAN);

BME280::TempUnit tempUnit(BME280::TempUnit_Celsius);

BME280::PresUnit presUnit(BME280::PresUnit_Pa);

bme.read(pres, temp, hum, tempUnit, presUnit);

// Converteer float naar string

String tempstring = String(temp);

String humstring = String(hum);

// Converteer String to Array

tempstring.toCharArray(tempchar, tempstring.length() + 1);

humstring.toCharArray(humchar, humstring.length() + 1);

if(mqttClient.connect(CLIENT_ID)) {

mqttClient.publish("inblaastemperatuur", tempchar);

mqttClient.publish("inblaasluchtvochtigheid", humchar);

}

Resultaat in Node-red:

[{"id":"a7721f5c.10366","type":"mqtt in","z":"9c025a4c.21ac28","name":"","topic":"inblaastemperatuur","qos":"2","broker":"cfdab20e.ecec8","x":270,"y":280,"wires":[["5eab5a09.c39854"]]},{"id":"5eab5a09.c39854","type":"debug","z":"9c025a4c.21ac28","name":"","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"false","x":530,"y":280,"wires":[]},{"id":"19e96d25.d95a43","type":"mqtt in","z":"9c025a4c.21ac28","name":"","topic":"inblaasluchtvochtigheid","qos":"2","broker":"cfdab20e.ecec8","x":280,"y":340,"wires":[["5eab5a09.c39854"]]},{"id":"cfdab20e.ecec8","type":"mqtt-broker","z":"","name":"Local MQTT","broker":"localhost","port":"1883","clientid":"","usetls":false,"compatmode":true,"keepalive":"60","cleansession":true,"birthTopic":"","birthQos":"0","birthPayload":"","willTopic":"","willQos":"0","willPayload":""}]

[{"id":"a7721f5c.10366","type":"mqtt in","z":"9c025a4c.21ac28","name":"","topic":"inblaastemperatuur","qos":"2","broker":"cfdab20e.ecec8","x":270,"y":280,"wires":[["5eab5a09.c39854"]]},{"id":"5eab5a09.c39854","type":"debug","z":"9c025a4c.21ac28","name":"","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"false","x":530,"y":280,"wires":[]},{"id":"19e96d25.d95a43","type":"mqtt in","z":"9c025a4c.21ac28","name":"","topic":"inblaasluchtvochtigheid","qos":"2","broker":"cfdab20e.ecec8","x":280,"y":340,"wires":[["5eab5a09.c39854"]]},{"id":"cfdab20e.ecec8","type":"mqtt-broker","z":"","name":"Local MQTT","broker":"localhost","port":"1883","clientid":"","usetls":false,"compatmode":true,"keepalive":"60","cleansession":true,"birthTopic":"","birthQos":"0","birthPayload":"","willTopic":"","willQos":"0","willPayload":""}]

Getagd met Arduino, ENC28J60, mqtt

Autoradio – Medion MD4366 – Display frontje aansturen

by SebastiaanPosted on 2018-05-08 Geplaatst in Overig (hardware)

Deze pagina beschrijft hoe je het display van een frontje van een Medion MD4366 kan aansturen met een Arduino. De autoradio LCD Display chip Als je het frontje open schroeft, zie je een chip zitten, deze stuurt de LCD aan: LC75823, …

Autoradio – Medion MD4366 – Display frontje aansturen Read More »

Getagd met aansturen, Arduino, autoradio, Display, MD4366, Medion

Arduino Library – UIPEthernet

by SebastiaanPosted on 2018-03-04 Geplaatst in Arduino libraries

UIPEthernet Driver voor ENC28J60 Installatie van Arduino IDE libraries: Arduino info Informatie (ENG): UIPEthernet library for Arduinos (Atmel AVR-s,Atmel SAM3X8E ARM Cortex-M3,STM32F series,ESP8266,Intel ARC32(Genuino101),Nordic nRF51(RFduino),Teensy boards,Realtek Ameba(RTL8195A,RTL8710)), ENC28j60 network chip compatible with Wiznet W5100 API Original UIPEthernet writed by Norbert Truchsess. You …

Arduino Library – UIPEthernet Read More »

Getagd met Arduino, Biblitheek, Library, RTU, TCP/IP, UIPEthernet

Module – Ethernet LAN Netwerk ENC28J60 – Modbus TCP/IP Slave

by SebastiaanPosted on 2018-03-04 Geplaatst in Modbus Hardware, Randapparatuur op de Arduino (Shields)

Hardware: Ethernet ENC28J60 module Het is mogelijk om een Modbus TCP/IP Slave te maken met deze ENC28J60 module, hieronder een voorbeeld. Voorbeeld waarde in register zetten met ARDUINO-MODBUS en ETHERCARD bibliotheek Wat heb je nodig? – arduino-modbus bibliotheek – Ethercard …

Module – Ethernet LAN Netwerk ENC28J60 – Modbus TCP/IP Slave Read More »

Getagd met Arduino, ENC28J60, Ethernet, informatie, Nano, Shield, TCP/IP, W5100

Arduino Library – Ethercard

by SebastiaanPosted on 2018-03-04 Geplaatst in Arduino libraries

ETHERCARD Driver voor ENC28J60 Installatie van Arduino IDE libraries: Arduino info Informatie (ENG): EtherCard is a driver for the ENC28J60 chip, compatible with Arduino IDE. Adapted and extended from code written by Guido Socher and Pascal Stang. License: GPL2 Requirements Hardware: This library only supports …

Arduino Library – Ethercard Read More »

Getagd met Arduino, Biblitheek, Ethercard, Library, RTU, TCP/IP

Arduino Shield – Ethernet W5100 – Modbus TCP/IP Slave

by SebastiaanPosted on 2018-03-03 Geplaatst in Modbus Hardware, Randapparatuur op de Arduino (Shields)

Hardware: Arduino Ethernet shield (W5100) BESTELLEN Klik hier voor meer informatie over deze Arduino shield Het is mogelijk om een Modbus TCP/IP Slave te maken met deze shield, hieronder een aantal voorbeelden met diverse bibliotheken. Voorbeeld met ARDUINO-MODBUS bibliotheek …

Arduino Shield – Ethernet W5100 – Modbus TCP/IP Slave Read More »

Getagd met Arduino, Ethernet, informatie, Shield, TCP/IP, W5100