Suchergebnisse für "PCF8574"
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8.2.1 Simplified Block Diagram of Device
PCF 8574
INT 13
Interrupt Logic
LP Filter
A0 1
A1 2
A2 3
SCL 14
SDA 15
I2C Bus Control
Shift Register
8 Bit
I/O Port
P0 4
P1 5
P2 6
P3 7
P4 9
P5 10
P6 11
P7 12
VCC 16
GND 8
Power-On Reset
Write Pulse
Read
in
„I2C-Bus: SDA und SCL an ATMEGA328p“
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Mikrocontroller und Digitale Elektronik
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27.06.2023 08:53
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Diagramme
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VCC, R6, 10k, R5, 20, IC1, PCF 8574 P, SDA, SCL, A0, A1, A2, VSS, GND, P0 bis P7, R8, 1k, LED1, LED2, IC2, ULN2003AN, VCC, Q1, BC327, R7, D1, IN4148, K1, K2, D2, IN4148, Q4, BSS84, K3, V4, D3, IN4148, Q2, BC337, GND, C1, 100nF, IC3A, 74HC04N, IC3B, S1, PCF 8574 -Anwendung, 20.07.2024 16:12:13, Sheet: 1/1
in
„Lichtsteuerung über i2c - ULN2803A - S12-100“
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Mikrocontroller und Digitale Elektronik
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05.08.2024 19:57
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Schaltpläne
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10K 10K 10K PCF 8574 AT ABC190. Z1 05 kn615173 R1 PCF 8574 T 100n 0x3F
in
„LCD 2 x 16 mit I2C Adapterplatine - ges. 9 Stück“
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Markt
·
26.05.2023 16:42
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Platinenfotos
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SDA SCL A4 A5 Nano 14 15 PCF 8574 P0 1 14 15 PCF 8574 P0 2 5K
in
„Zwei PCF8574 am Arduino Code Adressierung“
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Mikrocontroller und Digitale Elektronik
·
18.04.2024 16:05
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Diagramme
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LCD i2c TWI ATmega8 PCF 8574 4Bit-Modus P0 RS P1 RW P2 Enable P3 Light P4 D4 P5 D5 P6 D6 P7 D7 SCL SDA +5V GND PCF 8574 LCD Error TWI OK 470 470 470 Programmieradapter 100n AD0 A5 I2C SDA P25 AD1 A4 I2C SCL P24 AD2 A3 I2C P23
in
„i2c TWI LCD 4Bit PCF8574 HD44780 ATmega8 Assembler“
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Projekte & Code
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17.07.2024 22:53
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Schaltpläne
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TBD62083APG, Ausgang Relais, 74HC245, PCF 00-07, PCF 10-17, VCC, B0 bis B7, A0 bis A7, GND, CE, +3.3V, +12V, PCF Eingangs PINs
in
„Lichtsteuerung über i2c - ULN2803A - S12-100“
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Mikrocontroller und Digitale Elektronik
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09.08.2024 13:59
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Schaltpläne
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, 12, B7, A7, 8, A0, 1, A1, 2, A2, 3, P7, 12, 11, B8, A8, 9, VSS, 8, IC2, DIR, 1, G, 19, 74HC245N, PCF 8574 P
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„Lichtsteuerung über i2c - ULN2803A - S12-100“
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Mikrocontroller und Digitale Elektronik
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06.08.2024 10:52
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Schaltpläne
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U1 PCF 8574 T, A0, A1, A2, P0, P1, P2, P3, P4, P5, P6, P7, #INT, SCL, SDA, VDD, VSS, 3V3, GND, C1 100nF, R1 4.7kOhm, U2 LTV-847S, LED9 XL-1608SURC-06, R5 3kOhm, R6 2.2kOhm, D5 LL4148_C211750, In1+, In1-, Input
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„PCF8574 Optokoppler Input/Output“
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Mikrocontroller und Digitale Elektronik
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22.12.2024 15:18
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Schaltpläne
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V12 INPUT D1 IN0A R17 2K/1206 U1 IN D1 V12 INPUT D2 IN1A R18 2K/1206 U2 IN D2 IN D1 R1 IN D5 3V IN D2 R2 IN D6 4.7K IN D3 IN D4 IN D5 IN D6 IN D7 IN D8 IN D3 4.7K IN D4 IN D7 IN D8 V12 INPUT D3 IN2A R19 2K/1206 U3 IN D3 V12 INPUT D4 IN3A R20 2K/1206 U4 IN D4 V12 INPUT D5 IN4A R21 2K/1206 U5 IN D5 V12 INPUT D6 IN5A R22 2K/1206 U6 IN D6 V12 INPUT D7 IN6A R23 2K/1206 U7 IN D7 V12 INPUT D8 IN7A R24 2K/1206 U8 IN D8 P10 IN7A IN6A IN4A IN4A IN5A IN4A IN4A IN4A IN4
in
„AM312 am KC868-A8“
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Mikrocontroller und Digitale Elektronik
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14.12.2024 09:39
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Schaltpläne
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SV1, SDA, SCL, GND, +5V, C1, 100n, VDD, INT, P0, P1, P2, P3, P4, P5, P6, P7, VSS, PCF 8574 P, IC1, IC2, R1, R2, R3, R4, R5, 2k2, SV3, 5x LED, gemeinsame Anode, Q1, Q2, Q3, Q4, Q5, BC327, R6, R7, R8, R9, R10, 470R, D1, D2, D3, D4, D5, 1N4148, SV4, 5x Relais, gemeinsame Masse, SV2, A1, A2
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„Aufbau mit Arduino und 74LS15 läuft nicht korrekt“
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Mikrocontroller und Digitale Elektronik
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23.06.2024 17:17
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Schaltpläne
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LCD i2c TWI ATmega8 PCF 8574 4Bit-Modus SCL SDA RS RW Enable Latch D4 D5 D6 D7 +5V GND PCF 8574 LCD bei Bedarf 470 Error TWI OK 470 470 Programmieradapter 100n ATmega8-16 ADC0 ... ADC7 PB0 ... PB7 +5V GND 1k 10µ 100n Reset 07
in
„i2c TWI LCD 4Bit PCF8574 HD44780 ATmega8 Assembler“
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Projekte & Code
·
19.07.2024 22:24
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Schaltpläne
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PCF 8574 I2C LCD1602 Adapter board Vcc GND SDA SCL A0 A1 A2 PCF 8574 VDD P7 P6 P5 P4 P3 P2 P1 P0 INT S8050 4.7k Vcc Contrast adjustment 10k A0 A1 A2 1k 1k 0.1uF LED Character LCD ACM1602K-NLW-BBW etc. Vss
in
„HD44780 I2C Adapter“
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Mikrocontroller und Digitale Elektronik
·
31.03.2026 23:24
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Schaltpläne
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IC2 PCF 8574 P A0 A1 A2 P0 P7 P6 P5 VSS VDD SDA SCL +3V R2 10K R1 10K C1 100µF C2 100µF K2 +5V 18650 Lader/Halter K1 K3 PCF 8574 P D1 D2 K4 RX RX TX TX DAC_R DAC_L SPK2 SPK1 X2 VCC USB-D USB+ GND IO2 GND IO1 K5
in
„ESP8266 mit SPI Display und DF Player“
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Mikrocontroller und Digitale Elektronik
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22.02.2025 11:17
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Schaltpläne
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CS 2 RW 1 RS A0 A1 A2 SCL SDA VCC R7 4.7K SDA R8 4.7K VCC J1 1 GND 2 VCC 3 SDA 4 SCL CON4 C1 0.1uF PCF 8574 T VCC R1 4.7K Q1 BC540 VO R2 P3 P2 P1 P0 DI LED C1 CON2 I3 VCC external PWM to control LCD backlight to external Backlight control transistor on Arduino Proto Shield default jumper position on Arduino Proto Shield (extra jumper option added to soldering prototyping area) IIC PCF 8475 controlling LCD backlight
in
„PCF8574 I2c Adapter mit ASM ansteuern“
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Mikrocontroller und Digitale Elektronik
·
04.08.2023 12:39
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Fotos
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LED K(-) LED A(+) D7 D6 D5 D4 D3 D2 D1 D0 ENA R/W RS VO Kontrast Vcc(+5V) Vss LED POWER PCF 8574 AT A49715. 07 kn606063 GND VCC SDA SCL A0 A1 A2 Kontrast
in
„HD44780 I2C Adapter“
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Mikrocontroller und Digitale Elektronik
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02.04.2026 18:20
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Platinenfotos
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VCC GND SDA SCL A2 PCF 8574 P0 P1 P2 P3 P4 P5 P6 P7 INT AO Jumper
in
„Zwei PCF8574 am Arduino Code Adressierung“
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Mikrocontroller und Digitale Elektronik
·
18.04.2024 16:22
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Platinenfotos
#include <stm32f10x.h> #include <stm32f10x_i2c.h> #include "pcf 8574 .h" #define PCF 8574 _I2Cx_RCC RCC_APB1Periph_I2C1 #define PCF 8574 _I2Cx I2C1 #define PCF 8574 _I2C_GPIO_RCC RCC_APB2Periph_GPIOB #define PCF 8574 _I2C_GPIO GPIOB #define PCF 8574 _I2C_PIN_SCL GPIO_Pin_6 #define PCF 8574 _I2C_PIN_SDA GPIO_Pin_7 #define PCF 8574 _I2C_ADDR 0x20 void pcf 8574 _write(uint8_t data) { pcf 8574 _i2c_start(); pcf 8574 _i2c_address_direction(PCF 8574 _I2C_ADDR << 1, I2C_Direction_Transmitter); pcf 8574
in
„STM32 I2C Probleme mit PCF8574“
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Mikrocontroller und Digitale Elektronik
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18.03.2017 22:18
// // FILE: PCF 8574 .cpp // AUTHOR: Rob Tillaart // DATE: 02-febr-2013 // VERSION: 0.3.0 // PURPOSE: Arduino library for PCF 8574 - 8 channel I2C IO expander // URL: https://github.com/RobTillaart/PCF 8574 // http://forum.arduino.cc
in
„Fehler bei PCF8574.h Bibliotheke“
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Mikrocontroller und Digitale Elektronik
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16.04.2021 20:17
; } /* Originalversion, die nichts einliest: unsigned char pcf 8574 _get_inputs (unsigned char address) { pcf 8574 _init (); pcf 8574 _send_start (); pcf 8574 _send_add_rw (address, 1); //Adresse senden und Lesen einstellen unsigned char input = pcf 8574 _read_byte (); pcf 8574
in
„(AVR-gcc) Lesen vom PCF8574 I2C-Port-Expander gelingt nicht“
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Mikrocontroller und Digitale Elektronik
·
19.02.2014 09:49
"pcf 8574 .h" #include "../pcf 8574 /pcf 8574 .h" #include "lcdpcf8574 .h" #define lcd_e_delay() __asm__ __volatile__( "rjmp 1f\n 1:" ); #define lcd_e_toggle() toggle_e() #if LCD_LINES==1 #define LCD_FUNCTION_DEFAULT
in
„Eclipse Kompilierung LCD Buchstabensalat“
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Mikrocontroller und Digitale Elektronik
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12.03.2014 14:12
8574 1-0-1 Ports 57 - 64 BYTEPORT 8 PCF 8574 1-1-0 Ports 65 - 72 BYTEPORT 9 PCF 8574 1-1-1 Ports 73 - 80 BYTEPORT 10 PCF 8574 A 0-0-0 Ports 81 - 88 BYTEPORT 11 PCF 8574 A 0-0-1 Ports 89 - 96 BYTEPORT 12 PCF 8574 A 0-1-0 Ports 97 - 104 BYTEPORT 13 PCF 8574 A 0-1-1 Ports 105 - 112 BYTEPORT 14 PCF 8574 A 1-0-0 Ports 113 - 120 BYTEPORT 15 PCF 8574 A 1-0-1 Ports 121 - 128 BYTEPORT 16 PCF 8574 A 1-1-0 Ports 129 - 136
in
„pcf 8574 pMos highside driver“
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Mikrocontroller und Digitale Elektronik
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08.09.2016 18:14
I2C-Bus Adressliste: Elektronik-Magazin http://www.elektronik-magazin.de/page/i2c-bus-adressliste-23 PCF 8574 PCF 8574 PCF 8574 PCF 8574 PCF 8574 PCF 8574 PCF 8574 PCF 8574 20.12.2010 TDA8444 TDA8444 TDA8444 TDA8444 TDA8444 TDA8444 TDA8444 TDA8444 heidi 0101 User (0) 0110 0111 PCF 8576 PCF 8576 PCF 8577 PCF 8577A PCF 8578 PCF 8566 PCF 8566 11.10.2010 SAA1064 SAA1064 SAA1064 SAA1064 PCF 8579 PCF 8574 A PCF 8574 A PCF 8574 A PCF 8574 A PCF 8574 A PCF 8574 A PCF 8574 A peterjo 1000 TEA6320 TDA8424 TDA8425 User (0) TEA6330 TDA8425 TDA8415
in
„PCF8574/PCF8574A Adressierung“
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Mikrocontroller und Digitale Elektronik
·
18.01.2022 10:43
/Br) PCF 8574 DW ACTIVE SOIC DW 16 40 Green (RoHS NIPDAU Level-1-260C-UNLIM -40 to 85 PCF 8574 & no Sb/Br) PCF 8574 DWR ACTIVE SOIC DW 16 2000 Green (RoHS NIPDAU Level-1-260C-UNLIM -40 to 85 PCF 8574 & no Sb/Br) PCF 8574 DWRE4 ACTIVE SOIC DW 16 2000 Green (RoHS NIPDAU Level-1-260C-UNLIM -40 to 85 PCF 8574 & no Sb/Br) PCF 8574 DWRG4 ACTIVE SOIC DW 16 2000 Green (RoHS NIPDAU Level-1-260C-UNLIM -40 to 85 PCF 8574 & no Sb/Br) PCF 8574 N ACTIVE PDIP N 16 25 Green (RoHS NIPDAU N / A for Pkg Type -40 to 85 PCF 8574 N
in
„Projekt Platine 8-Fach DLG7137“
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Projekte & Code
·
19.03.2025 16:45
; } unsigned char pcf 8574 _get_inputs (unsigned char address) { pcf 8574 _init (); uart_puts("\nPCF 8574 _init"); pcf 8574 _send_start (); uart_puts("send start - "); pcf 8574 _send_add_rw (address, 1); uart_puts("send addr - ");
in
„Problem mit PCF8574“
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Mikrocontroller und Digitale Elektronik
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12.10.2006 03:00
temp; temp=pcf 8574 _lesen(7); temp=temp&0xfd; pcf 8574 _schreiben(7,temp); } void led_gelb_aus() { volatile uchar temp; temp=pcf 8574 _lesen(7); temp=temp|2; pcf 8574 _schreiben(7,temp); } void led_gruen_an() { volatile
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„Philips PCF8583“
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Mikrocontroller und Digitale Elektronik
·
11.10.2006 18:58
; } unsigned char pcf 8574 _get_inputs (unsigned char address) { pcf 8574 _init (); pcf 8574 _send_start (); pcf 8574 _send_add_rw (address, 1); unsigned char input = pcf 8574 _read_byte (); pcf 8574 _send_stop (); return input; } void pcf 8574 _set_outputs (unsigned char address, unsigned char byte) { pcf 8574 _init (); pcf 8574 _send_start (); pcf 8574 _send_add_rw (address, 0); pcf 8574 _send_byte (byte); pcf 8574 _send_stop (); }
in
„PCF8574AP mit ATMEGA8 - scheitere beim Zugriff“
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Mikrocontroller und Digitale Elektronik
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06.07.2010 14:59
; } unsigned char pcf 8574 _get_inputs (unsigned char address) { pcf 8574 _init (); pcf 8574 _send_start (); pcf 8574 _send_add_rw (address, 1); unsigned char input = pcf 8574 _read_byte (); pcf 8574 _send_stop (); return input; } void pcf 8574 _set_outputs (unsigned char address, unsigned char byte) { pcf 8574 _init (); pcf 8574 _send_start (); pcf 8574 _send_add_rw (address, 0); pcf 8574 _send_byte (byte); pcf 8574 _send_stop (); }
in
„PCF8574N Daten lesen“
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Mikrocontroller und Digitale Elektronik
·
05.07.2013 09:56
************************************************************************************ unsigned char pcf 8574 _get_inputs (unsigned char address) { pcf 8574 _init (); pcf 8574 _send_start (); pcf 8574 _send_add_rw (address, 1); unsigned char input = pcf 8574 _read_byte (); pcf 8574 _send_stop (); return input; } void pcf 8574 _set_outputs (unsigned char address, unsigned char byte) { pcf 8574 _init (); pcf 8574 _send_start (); pcf 8574 _send_add_rw (address, 0); pcf 8574 _send_byte (byte); pcf 8574 _send_stop (); }
in
„port-expander-matrix Bug ATmega8 hängt sich in der letzten Zeile auf“
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Mikrocontroller und Digitale Elektronik
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27.08.2010 20:29
the I C-bus. This means that the PCF 8574 can remain a simple slave device. 2 GENERAL DESCRIPTION The PCF 8574 and PCF 8574 A versions differ only in their ThePCF 8574 isasiliconCMOScircuit.Itprovidesgeneral slave address as shown in Fig.10.
in
„PCF8574 Routine in C“
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Mikrocontroller und Digitale Elektronik
·
19.09.2008 09:33
the I C-bus. This means that the PCF 8574 can remain a simple slave device. 2 GENERAL DESCRIPTION The PCF 8574 and PCF 8574 A versions differ only in their ThePCF 8574 isasiliconCMOScircuit.Itprovidesgeneral slave address as shown in Fig.10.
in
„I²C tolle Alternative“
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Mikrocontroller und Digitale Elektronik
·
11.10.2006 11:50
the I C-bus. This means that the PCF 8574 can remain a simple slave device. 2 GENERAL DESCRIPTION The PCF 8574 and PCF 8574 A versions differ only in their ThePCF 8574 isasiliconCMOScircuit.Itprovidesgeneral slave address as shown in Fig.10.
in
„I2C mit Display parallel?“
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Mikrocontroller und Digitale Elektronik
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22.11.2009 08:58
PCF 8574 A_Adr_WR (char)0x70 // schreiben #define PCF _RD_ADRESSE 1 // PCF _Adr immer gerade => RD_ADRESSE =+1 #define PCF 8574 _WR0 PCF 8574 A_Adr_WR // schreiben A= 0x70 , sonst 0x40 #define PCF 8574 _WR1 ( PCF 8574 _WR0 +2 ) // schreiben, lesen = +1 #define PCF 8574 _WR2 ( PCF 8574 _WR0 +4 ) // -------------------------------------------------- void WR_PCF 8574 (char Wohin , char was) ; char RD_PCF 8574 (char Woher) ; // -------------------------------------------
in
„MSP430 pcf8574“
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Mikrocontroller und Digitale Elektronik
·
11.02.2008 09:27
/ Macro for delay of ms and us #endif const char strP_DS1631[] PROGMEM = "DS1631"; const char strP_PCF 8574 [] PROGMEM = "PCF 8574 "; const char strP_PCF 8574 A[] PROGMEM = "PCF 8574 A"; const char strP_PCF 8583[] PROGMEM = "PCF 8583"; const char strP_TWI_Dev[] PROGMEM = "TWI_Dev"; // Not named TWI Device const char strP_Err_DS1631[] PROGMEM = "Err_DS1631"; const char strP_Err_PCF 8574 [] PROGMEM = "Err_PCF 8574 "; const char strP_Err_PCF 8574 A[] PROGMEM = "Err_PCF 8574 A"; const char strP_Err_PCF 8583[] PROGMEM = "Err_PCF 8583"; const char strP_Err_TWI_Dev[] PROGMEM = "Err_TWI_Dev";
in
„TWI MUX per SW an einem Port“
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Mikrocontroller und Digitale Elektronik
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21.01.2012 20:13
slave address as shown in Fig.9. 3 ORDERING INFORMATION PACKAGE TYPE NUMBER NAME DESCRIPTION VERSION PCF 8574 P; DIP16 plastic dual in-line package; 16 leads (300 mil) SOT38-1 PCF 8574 AP PCF 8574 T; SO16 plastic small outline package; 16 leads; body width 7.5 mm SOT162-1 PCF 8574 AT PCF 8574 TS SSOP20 plastic shrink
in
„Austausch IC mit DIP gegen SMD“
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Mikrocontroller und Digitale Elektronik
·
01.03.2017 20:49
slave address as shown in Fig.9. 3 ORDERING INFORMATION PACKAGE TYPE NUMBER NAME DESCRIPTION VERSION PCF 8574 P; DIP16 plastic dual in-line package; 16 leads (300 mil) SOT38-1 PCF 8574 AP PCF 8574 T; SO16 plastic small outline package; 16 leads; body width 7.5 mm SOT162-1 PCF 8574 AT PCF 8574 TS SSOP20 plastic shrink
in
„[V] #VERKAUFT# Platine mit 8 Stück DLG7137, 5*7 Punktmatrix“
·
Markt
·
11.03.2025 00:17
/index.php?topic=184800 // // HISTORY: // see PCF 8574 .cpp file // #include "Arduino.h" #include "Wire.h" #define PCF 8574 _LIB_VERSION (F("0.3.0")) #ifndef PCF 8574 _INITIAL_VALUE #define PCF 8574 _INITIAL_VALUE 0xFF #endif #define PCF 8574 _OK 0x00 #define PCF 8574 _PIN_ERROR 0x81 #define PCF 8574 _I2C_ERROR 0x82 class PCF 8574 { public: explicit PCF 8574 (const uint8_t deviceAddress, TwoWire *wire = &Wire); #if defined (ESP8266) || defined(ESP32) bool begin(uint8
in
„Fehler bei PCF8574.h Bibliotheke“
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Mikrocontroller und Digitale Elektronik
·
16.04.2021 20:17
#include <Arduino.h> #include <pcf 8574 _esp.h> #include <PolledTimeout.h> #define PCF _INT_PIN D5 #define PCF _DEBOUNCE_MS 50 #define PCF _INPUT1 3 #define PCF _INPUT2 2 #define PCF _INPUT3 1 #define PCF _INPUT4 0 PCF 857x pcf 8574 (0x20, &Wire
in
„ESP8266 mit PCF8574 und Taster - Interrupt vom PCF "spinnt"?“
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Mikrocontroller und Digitale Elektronik
·
17.04.2020 10:19
#include <avr/pcf 8574 .h> void pcf 8574 _init (void) { /*einstellen des bus-taktes*/ TWBR = 0x10; } unsigned char pcf 8574 _send_start (void) { /*schreiben der start bedingung 10100100 in das TWCR */ TWCR = 0xA4; /*warten
in
„PCF8574 an Atmega 168p“
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Mikrocontroller und Digitale Elektronik
·
19.09.2011 16:13
PCF 8574 _Read(PCF 8574 _I2C_ADR, &Tasten_A); // Lesezugriff P11 PCA9536_Read(PCA9536_I2C_ADR, &Tasten_B); // Lesezugriff Abfrage WTMA if(~Tasten_B & 0x08) { // Taste 4 kopieren pcf 8574 _buffer &= ~0x08; } else { pcf 8574 _buffer |= 0x08; } if (~Taste_A & 0x08) { // Taste 1 kopieren pcf 8574 _buffer &= ~0x01; } else { pcf 8574 _buffer |= 0x01; } PCF 8574 _Write(PCF 8574 _I2C_ADR, pcf 8574 _buffer); PCA9536_Write(PCA9536_I2C_ADR
in
„Denkfehler mit PCA9536 (Problem)“
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Mikrocontroller und Digitale Elektronik
·
01.03.2015 13:06
PCF 8574 _Read(PCF 8574 _I2C_ADR, &Tasten_A); // Lesezugriff P11 PCA9536_Read(PCA9536_I2C_ADR, PCA9536_INPUT_REG, &Tasten_B); // Lesezugriff Abfrage WTMA if(~Tasten_B & 0x08) { // Taste 4 kopieren pcf 8574 _buffer &= ~0x80; } else { pcf 8574 _buffer |= 0x80; } if (~Taste_A & 0x08) { // Taste 1 kopieren pcf 8574 _buffer &= ~0x10; } else { pcf 8574 _buffer |= 0x10; } PCF 8574 _Write(PCF 8574 _I2C_ADR, pcf 8574 _buffer); PCA9536_Write(PCA9536_I2C_ADR
in
„Denkfehler mit PCA9536 (Problem)“
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Mikrocontroller und Digitale Elektronik
·
01.03.2015 19:55
: C:\Users\Worker\AppData\Local\Temp\arduino_build_389122\libraries\MyPCF 8574 \MyPCF 8574 .cpp.o Compiling library "Modellbahn" Compiling library "MyPCF 8575" Compiling library "MyPCA9685" Compiling library "MyTimer" Compiling library "MyFramControl" Compiling library "MyFRAM_I2C
in
„BFD DWARF Error - avr-gcc 13.2 & binutils 2.41“
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Mikrocontroller und Digitale Elektronik
·
01.12.2023 23:27
#define in_txlcd_i2c #include <util/delay.h> #include <avr/pgmspace.h> #include "i2c_sw.h" #define pcf 8574 _addr 0x40 // I2C-Adresse Portexpander #define lcd_rs 0 // Bitposition RS-Anschluss am 8574 - Portexpander #define lcd_clk 2 // Bitposition E-Anschluss am 8574 -Portexpander #define clk_set() { pcf _value |= 1 << lcd_clk; pcf 8574 _write(pcf _value); } #define clk_clr() { pcf _value &= ~(1 << lcd_clk); pcf 8574 _write(pcf _value); } #define rs_set() { pcf _value |= 1 << lcd_rs; pcf 8574 _write(pcf _value); } #define rs_clr() { pcf _value
in
„(sehr) kleines "FrameWork" für ATtiny44“
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Projekte & Code
·
23.10.2018 19:16
--------------- #define DS1631_BaseAdr 0b10010000 // 144 BaseAddress for Temperatur Sensor #define PCF 8574 _BaseAdr 0b01000000 // 64 BaseAddress for 8-bit I/O Expander - "Regular" #define PCF 8574 A_BaseAdr 0b01110000 // 112 BaseAddress for 8-bit I/O Expander - Version "A" #define PCF 8583_BaseAdr 0b10100000
in
„TWI MUX per SW an einem Port“
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Mikrocontroller und Digitale Elektronik
·
21.01.2012 20:15
000X = 0x40 oder ein Bit nach rechts verschoben: 0x20 // pcf 8574 _set_outputs (0x20, i); //PCF 8574 hat Adresse 0x20!!! <<<---<<<--- OK funktioniert 0x20 ist falsch, da UP 0..8 erwartet.!!!!!!!!!!!!!<<<---<<<--- // pcf 8574 _set_outputs (0, i); //PCF 8574 hat Adresse
in
„(AVR-gcc) Lesen vom PCF8574 I2C-Port-Expander gelingt nicht“
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Mikrocontroller und Digitale Elektronik
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19.02.2014 09:49
include "xc.h" #include "stdio.h" #include "stdarg.h" #include "stdlib.h" #include "I2C.h" #define PCF 8574 _ADDR_WRITE 0x70 #define PCF 8574 _ADDR_READ 0x71 //liest den PCF 8574 aus (Status der Eingänge) char PCF 8574 read() { char temp; i2c_start(); send_i2c_byte(PCF 8574 _ADDR_READ); __delay_us(10); temp = i2c_read(); reset_i2c_bus(); return temp; } //setzt Ausgänge am PCF 8574 void PCF 8574 write(char data) { i2c_start(); send_i2c_byte(PCF 8574 _ADDR_WRITE); send_i2c_byte(data); reset_i2c_bus(); }
in
„I2C PIC 18F2550 und MCP4728“
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Mikrocontroller und Digitale Elektronik
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06.03.2015 22:22
\Users\\Worker\\AppData\\Local\\Temp\\arduino_build_164294\\sketch\\Modellbahn_TestEncoderInterfacePCF 8575_PCA9685_FRAM_016.ino.cpp" -o nul Alternatives for MyPCF 8574 .h: [MyPCF 8574 @0.9.0] ResolveLibrary(MyPCF 8574 .h) -> candidates: [MyPCF 8574 @0.9.0] "C:\\avrToolchain\\avr-gcc-8.5.0_mingw32_binutils2.42
in
„GCC v14 Release“
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Mikrocontroller und Digitale Elektronik
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16.05.2024 20:53
#include <Arduino.h> #include <pcf 8574 _esp.h> #include <PolledTimeout.h> #define PCF _INT_PIN D5 #define PCF _DEBOUNCE_MS 50 #define PCF _INPUT1 3 #define PCF _INPUT2 2 #define PCF _INPUT3 1 #define PCF _INPUT4 0 PCF 857x pcf 8574 (0x20, &Wire
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„ESP8266 mit PCF8574 und Taster - Interrupt vom PCF "spinnt"?“
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Mikrocontroller und Digitale Elektronik
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17.04.2020 15:54
HD44780 ; LCD 1602 / 2004 ; ---- ; | | ; VCC -- | 1 | VSS ; GND -- | 2 | VDD ; R <-------- | 3 | VEE ; PCF 8574 P0 --> | 4 | RS ; PCF 8574 P1 --> | 5 | R/W ; PCF 8574 P2 --> | 6 | E ; x | 7 | D0 ; x | 8 | D1 ; x | 9 | D2 ; x | 10 | D3 ; PCF 8574 P4 --> | 11 | D4 ; PCF 8574 P5 --> | 12 | D5 ; PCF 8574 P6 --> | 13 | D6 ; PCF 8574 P7 --> | 14 | D7 ; PCF 8574 P3 --> | 15 | A ; GND -- | 16 | C ; | | ; ---- ; ; ------------------------------------------------------------------------- ; externes DISPLAY .equ DP_RS = 0 .equ DP_RW
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„AVR ATtiny13 DS18B20/DS18S20 I2C PCF8574 LCD Temperaturanzeige“
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Projekte & Code
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17.03.2022 19:09
\file LiquidCrystal_PCF 8574 .h /// \brief LiquidCrystal library with PCF 8574 I2C adapter. /// /// \author Matthias Hertel, http://www.mathertel.de /// /// \copyright Copyright (c) 2019 by Matthias Hertel.\n /// /// The library
in
„PCF8574 I2c Adapter mit ASM ansteuern“
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Mikrocontroller und Digitale Elektronik
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04.08.2023 13:45
define LCD_E_PIN 2 /**< LCD-Pin E is connected to P2 on the PCF 8574 */ #define LCD_LED_PIN 3 /**< LCD-PIN LED+ is connected to P3 on the PCF 8574 */ #define LCD_D4_PIN 4 /**< LCD-Pin D4 is connected to P4 on the PCF 8574 */ #define LCD_D5_PIN 5 /**< LCD-Pin D5 is connected to P5 on the PCF 8574 */ #define LCD_D6_PIN 6 /**< LCD-Pin D6 is connected to P6 on the PCF 8574 */ #define LCD_D7_PIN 7 /**< LCD-Pin D7 is connected to P7 on the PCF 8574 */ /* dez Eingabe der Port-Nummern */ /*@}*/ /
in
„4x20-LCD läuft nicht richtig“
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Mikrocontroller und Digitale Elektronik
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13.03.2017 11:28
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