Problème I2C avec NodeMCU ESP8266

dom78 · February 23, 2022, 3:26pm

Bonjour,
Communication I2c entre Arduino Méga (Emetteur qui envoie des bytes) et Nano (Récepteur)
Dans le Setup du Nano:

`Wire. Begin(I2C_SLAVE_ADDRESS);`
`Wire.onReceive(receiveEvents);`

`void receiveEvents()`
`{`
`Data = Wire. Read();`
 `Serial.println(DataB,BIN);`
 `}`

Cela fonctionne très bien mais si je remplace le Nano par un NodeMCU ESP8266 il refuse la compilation à void
receiveEvents().
Merci pour vos réponses

lesept · February 23, 2022, 4:02pm

Envoie l'ensemble du message de compilation STP

dom78 · February 23, 2022, 4:43pm

exit status 1
no matching function for call to 'onReceive(void (&)())'

ZX80 · February 23, 2022, 5:30pm

il semble que l' esp8266 ne puisse pas etre ' slave '.
Surveiller aussi la compatibilité des voltages.

dom78 · February 23, 2022, 5:41pm

Bonjour,
Pour les voltages j'utilise des convertisseurs de niveaux pour SDA et SCL.

ZX80 · February 23, 2022, 5:47pm

https://forum.arduino.cc/t/i2c-communication-between-nodemcu-and-arduino-uno/534715/9

réplique #10

lesept · February 23, 2022, 7:54pm

Ca c'est juste la fin du message : utilise le bouton à côté de la fenêtre du compilateur pour copier l'ensemble du message.

lesept · February 23, 2022, 8:00pm

C'est juste : on le voit ici et il semble que rien n'ait été fait depuis 2017 à ce sujet :

github.com/esp8266/Arduino

ESP8266 to ESP8266 i2c

opened 08:58PM - 14 Mar 17 UTC

reubenrodrigues24

With added support for i2c slave from [here](https://github.com/esp8266/Arduino/…compare/master...bjoham:i2c_slave) by @bjoham, after modifying all files. Master (ESP8266) ``` #include <Wire.h> int x = 3; void setup() { Wire.pins(4,5); Wire.begin(); // join i2c bus (address optional for master) Wire.beginTransmission(8); // transmit to device #8 Wire.write(x); // sends one byte Wire.endTransmission(); // stop transmitting } void loop() { } ``` Slave (ESP8266) ``` #include <Wire.h> int x = 3; void setup() { pinMode(D0,OUTPUT); Wire.pins(4,5); Wire.begin(8); // join i2c bus with address #8 Wire.onReceive(receiveEvent); // register event //Serial.begin(9600); // start serial for output // Serial.println("Got something?"); digitalWrite(D0,LOW); } void loop() { delay(100); if (x == 3) { digitalWrite(D0, HIGH); } //If value received is 3 blink LED for 400 ms if (x == 0) { digitalWrite(D0, LOW); } } // function that executes whenever data is received from master // this function is registered as an event, see setup() void receiveEvent(int howMany) { x = Wire.read(); // read one character from the I2C' } ``` I have connected pins D1,D2,GND on both the boards(NodeMCU). This doesn't seem to work. Any help will be appreciated.

Tu devrais utiliser un ESP32 au lieu d'un ESP8266.

dom78 · February 24, 2022, 1:51pm

Arduino : 1.8.19 (Windows 10), Carte : "NodeMCU 1.0 (ESP-12E Module), 80 MHz, Flash, Disabled (new aborts on oom), Disabled, All SSL ciphers (most compatible), 32KB cache + 32KB IRAM (balanced), Use pgm_read macros for IRAM/PROGMEM, 4MB (FS:2MB OTA:~1019KB), 2, v2 Lower Memory, Disabled, None, Only Sketch, 115200"





















C:\Program Files (x86)\Arduino\arduino-builder -dump-prefs -logger=machine -hardware C:\Program Files (x86)\Arduino\hardware -hardware C:\Users\Dominique\AppData\Local\Arduino15\packages -tools C:\Program Files (x86)\Arduino\tools-builder -tools C:\Program Files (x86)\Arduino\hardware\tools\avr -tools C:\Users\Dominique\AppData\Local\Arduino15\packages -built-in-libraries C:\Program Files (x86)\Arduino\libraries -libraries C:\Users\Dominique\Documents\Arduino\libraries -fqbn=esp8266:esp8266:nodemcuv2:xtal=80,vt=flash,exception=disabled,stacksmash=disabled,ssl=all,mmu=3232,non32xfer=fast,eesz=4M2M,led=2,ip=lm2f,dbg=Disabled,lvl=None____,wipe=none,baud=115200 -ide-version=10819 -build-path C:\Users\DOMINI~1\AppData\Local\Temp\arduino_build_13897 -warnings=all -build-cache C:\Users\DOMINI~1\AppData\Local\Temp\arduino_cache_867933 -prefs=build.warn_data_percentage=75 -prefs=runtime.tools.mkspiffs.path=C:\Users\Dominique\AppData\Local\Arduino15\packages\esp8266\tools\mkspiffs\3.0.4-gcc10.3-1757bed -prefs=runtime.tools.mkspiffs-3.0.4-gcc10.3-1757bed.path=C:\Users\Dominique\AppData\Local\Arduino15\packages\esp8266\tools\mkspiffs\3.0.4-gcc10.3-1757bed -prefs=runtime.tools.xtensa-lx106-elf-gcc.path=C:\Users\Dominique\AppData\Local\Arduino15\packages\esp8266\tools\xtensa-lx106-elf-gcc\3.0.4-gcc10.3-1757bed -prefs=runtime.tools.xtensa-lx106-elf-gcc-3.0.4-gcc10.3-1757bed.path=C:\Users\Dominique\AppData\Local\Arduino15\packages\esp8266\tools\xtensa-lx106-elf-gcc\3.0.4-gcc10.3-1757bed -prefs=runtime.tools.python3.path=C:\Users\Dominique\AppData\Local\Arduino15\packages\esp8266\tools\python3\3.7.2-post1 -prefs=runtime.tools.python3-3.7.2-post1.path=C:\Users\Dominique\AppData\Local\Arduino15\packages\esp8266\tools\python3\3.7.2-post1 -prefs=runtime.tools.mklittlefs.path=C:\Users\Dominique\AppData\Local\Arduino15\packages\esp8266\tools\mklittlefs\3.0.4-gcc10.3-1757bed -prefs=runtime.tools.mklittlefs-3.0.4-gcc10.3-1757bed.path=C:\Users\Dominique\AppData\Local\Arduino15\packages\esp8266\tools\mklittlefs\3.0.4-gcc10.3-1757bed -verbose D:\00 _ Arduino\00 _ sketch\2022\02 _ Fevrier\02 _ Communication I2C\02 - Master Méga - Slave NodeMCU ESP8266\NodeMCU_02_Recepteur_I2C\NodeMCU_02_Recepteur_I2C.ino

C:\Program Files (x86)\Arduino\arduino-builder -compile -logger=machine -hardware C:\Program Files (x86)\Arduino\hardware -hardware C:\Users\Dominique\AppData\Local\Arduino15\packages -tools C:\Program Files (x86)\Arduino\tools-builder -tools C:\Program Files (x86)\Arduino\hardware\tools\avr -tools C:\Users\Dominique\AppData\Local\Arduino15\packages -built-in-libraries C:\Program Files (x86)\Arduino\libraries -libraries C:\Users\Dominique\Documents\Arduino\libraries -fqbn=esp8266:esp8266:nodemcuv2:xtal=80,vt=flash,exception=disabled,stacksmash=disabled,ssl=all,mmu=3232,non32xfer=fast,eesz=4M2M,led=2,ip=lm2f,dbg=Disabled,lvl=None____,wipe=none,baud=115200 -ide-version=10819 -build-path C:\Users\DOMINI~1\AppData\Local\Temp\arduino_build_13897 -warnings=all -build-cache C:\Users\DOMINI~1\AppData\Local\Temp\arduino_cache_867933 -prefs=build.warn_data_percentage=75 -prefs=runtime.tools.mkspiffs.path=C:\Users\Dominique\AppData\Local\Arduino15\packages\esp8266\tools\mkspiffs\3.0.4-gcc10.3-1757bed -prefs=runtime.tools.mkspiffs-3.0.4-gcc10.3-1757bed.path=C:\Users\Dominique\AppData\Local\Arduino15\packages\esp8266\tools\mkspiffs\3.0.4-gcc10.3-1757bed -prefs=runtime.tools.xtensa-lx106-elf-gcc.path=C:\Users\Dominique\AppData\Local\Arduino15\packages\esp8266\tools\xtensa-lx106-elf-gcc\3.0.4-gcc10.3-1757bed -prefs=runtime.tools.xtensa-lx106-elf-gcc-3.0.4-gcc10.3-1757bed.path=C:\Users\Dominique\AppData\Local\Arduino15\packages\esp8266\tools\xtensa-lx106-elf-gcc\3.0.4-gcc10.3-1757bed -prefs=runtime.tools.python3.path=C:\Users\Dominique\AppData\Local\Arduino15\packages\esp8266\tools\python3\3.7.2-post1 -prefs=runtime.tools.python3-3.7.2-post1.path=C:\Users\Dominique\AppData\Local\Arduino15\packages\esp8266\tools\python3\3.7.2-post1 -prefs=runtime.tools.mklittlefs.path=C:\Users\Dominique\AppData\Local\Arduino15\packages\esp8266\tools\mklittlefs\3.0.4-gcc10.3-1757bed -prefs=runtime.tools.mklittlefs-3.0.4-gcc10.3-1757bed.path=C:\Users\Dominique\AppData\Local\Arduino15\packages\esp8266\tools\mklittlefs\3.0.4-gcc10.3-1757bed -verbose D:\00 _ Arduino\00 _ sketch\2022\02 _ Fevrier\02 _ Communication I2C\02 - Master Méga - Slave NodeMCU ESP8266\NodeMCU_02_Recepteur_I2C\NodeMCU_02_Recepteur_I2C.ino

Using board 'nodemcuv2' from platform in folder: C:\Users\Dominique\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\3.0.2

Using core 'esp8266' from platform in folder: C:\Users\Dominique\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\3.0.2

Detecting libraries used...

"C:\\Users\\Dominique\\AppData\\Local\\Arduino15\\packages\\esp8266\\tools\\xtensa-lx106-elf-gcc\\3.0.4-gcc10.3-1757bed/bin/xtensa-lx106-elf-g++" -D__ets__ -DICACHE_FLASH -U__STRICT_ANSI__ -D_GNU_SOURCE "-IC:\\Users\\Dominique\\AppData\\Local\\Arduino15\\packages\\esp8266\\hardware\\esp8266\\3.0.2/tools/sdk/include" "-IC:\\Users\\Dominique\\AppData\\Local\\Arduino15\\packages\\esp8266\\hardware\\esp8266\\3.0.2/tools/sdk/lwip2/include" "-IC:\\Users\\Dominique\\AppData\\Local\\Arduino15\\packages\\esp8266\\hardware\\esp8266\\3.0.2/tools/sdk/libc/xtensa-lx106-elf/include" "-IC:\\Users\\DOMINI~1\\AppData\\Local\\Temp\\arduino_build_13897/core" -c -w -Werror=return-type -Os -g -free -fipa-pta -mlongcalls -mtext-section-literals -fno-rtti -falign-functions=4 -std=gnu++17 -ffunction-sections -fdata-sections -fno-exceptions -DMMU_IRAM_SIZE=0x8000 -DMMU_ICACHE_SIZE=0x8000 -w -x c++ -E -CC -DNONOSDK22x_190703=1 -DF_CPU=80000000L -DLWIP_OPEN_SRC -DTCP_MSS=536 -DLWIP_FEATURES=1 -DLWIP_IPV6=0 -DARDUINO=10819 -DARDUINO_ESP8266_NODEMCU_ESP12E -DARDUINO_ARCH_ESP8266 "-DARDUINO_BOARD=\"ESP8266_NODEMCU_ESP12E\"" -DLED_BUILTIN=2 -DFLASHMODE_DIO -DESP8266 "-IC:\\Users\\Dominique\\AppData\\Local\\Arduino15\\packages\\esp8266\\hardware\\esp8266\\3.0.2\\cores\\esp8266" "-IC:\\Users\\Dominique\\AppData\\Local\\Arduino15\\packages\\esp8266\\hardware\\esp8266\\3.0.2\\variants\\nodemcu" "C:\\Users\\DOMINI~1\\AppData\\Local\\Temp\\arduino_build_13897\\sketch\\NodeMCU_02_Recepteur_I2C.ino.cpp" -o nul

Alternatives for Wire.h: [Wire@1.0]

ResolveLibrary(Wire.h)

  -> candidates: [Wire@1.0]

"C:\\Users\\Dominique\\AppData\\Local\\Arduino15\\packages\\esp8266\\tools\\xtensa-lx106-elf-gcc\\3.0.4-gcc10.3-1757bed/bin/xtensa-lx106-elf-g++" -D__ets__ -DICACHE_FLASH -U__STRICT_ANSI__ -D_GNU_SOURCE "-IC:\\Users\\Dominique\\AppData\\Local\\Arduino15\\packages\\esp8266\\hardware\\esp8266\\3.0.2/tools/sdk/include" "-IC:\\Users\\Dominique\\AppData\\Local\\Arduino15\\packages\\esp8266\\hardware\\esp8266\\3.0.2/tools/sdk/lwip2/include" "-IC:\\Users\\Dominique\\AppData\\Local\\Arduino15\\packages\\esp8266\\hardware\\esp8266\\3.0.2/tools/sdk/libc/xtensa-lx106-elf/include" "-IC:\\Users\\DOMINI~1\\AppData\\Local\\Temp\\arduino_build_13897/core" -c -w -Werror=return-type -Os -g -free -fipa-pta -mlongcalls -mtext-section-literals -fno-rtti -falign-functions=4 -std=gnu++17 -ffunction-sections -fdata-sections -fno-exceptions -DMMU_IRAM_SIZE=0x8000 -DMMU_ICACHE_SIZE=0x8000 -w -x c++ -E -CC -DNONOSDK22x_190703=1 -DF_CPU=80000000L -DLWIP_OPEN_SRC -DTCP_MSS=536 -DLWIP_FEATURES=1 -DLWIP_IPV6=0 -DARDUINO=10819 -DARDUINO_ESP8266_NODEMCU_ESP12E -DARDUINO_ARCH_ESP8266 "-DARDUINO_BOARD=\"ESP8266_NODEMCU_ESP12E\"" -DLED_BUILTIN=2 -DFLASHMODE_DIO -DESP8266 "-IC:\\Users\\Dominique\\AppData\\Local\\Arduino15\\packages\\esp8266\\hardware\\esp8266\\3.0.2\\cores\\esp8266" "-IC:\\Users\\Dominique\\AppData\\Local\\Arduino15\\packages\\esp8266\\hardware\\esp8266\\3.0.2\\variants\\nodemcu" "-IC:\\Users\\Dominique\\AppData\\Local\\Arduino15\\packages\\esp8266\\hardware\\esp8266\\3.0.2\\libraries\\Wire" "C:\\Users\\DOMINI~1\\AppData\\Local\\Temp\\arduino_build_13897\\sketch\\NodeMCU_02_Recepteur_I2C.ino.cpp" -o nul

"C:\\Users\\Dominique\\AppData\\Local\\Arduino15\\packages\\esp8266\\tools\\xtensa-lx106-elf-gcc\\3.0.4-gcc10.3-1757bed/bin/xtensa-lx106-elf-g++" -D__ets__ -DICACHE_FLASH -U__STRICT_ANSI__ -D_GNU_SOURCE "-IC:\\Users\\Dominique\\AppData\\Local\\Arduino15\\packages\\esp8266\\hardware\\esp8266\\3.0.2/tools/sdk/include" "-IC:\\Users\\Dominique\\AppData\\Local\\Arduino15\\packages\\esp8266\\hardware\\esp8266\\3.0.2/tools/sdk/lwip2/include" "-IC:\\Users\\Dominique\\AppData\\Local\\Arduino15\\packages\\esp8266\\hardware\\esp8266\\3.0.2/tools/sdk/libc/xtensa-lx106-elf/include" "-IC:\\Users\\DOMINI~1\\AppData\\Local\\Temp\\arduino_build_13897/core" -c -w -Werror=return-type -Os -g -free -fipa-pta -mlongcalls -mtext-section-literals -fno-rtti -falign-functions=4 -std=gnu++17 -ffunction-sections -fdata-sections -fno-exceptions -DMMU_IRAM_SIZE=0x8000 -DMMU_ICACHE_SIZE=0x8000 -w -x c++ -E -CC -DNONOSDK22x_190703=1 -DF_CPU=80000000L -DLWIP_OPEN_SRC -DTCP_MSS=536 -DLWIP_FEATURES=1 -DLWIP_IPV6=0 -DARDUINO=10819 -DARDUINO_ESP8266_NODEMCU_ESP12E -DARDUINO_ARCH_ESP8266 "-DARDUINO_BOARD=\"ESP8266_NODEMCU_ESP12E\"" -DLED_BUILTIN=2 -DFLASHMODE_DIO -DESP8266 "-IC:\\Users\\Dominique\\AppData\\Local\\Arduino15\\packages\\esp8266\\hardware\\esp8266\\3.0.2\\cores\\esp8266" "-IC:\\Users\\Dominique\\AppData\\Local\\Arduino15\\packages\\esp8266\\hardware\\esp8266\\3.0.2\\variants\\nodemcu" "-IC:\\Users\\Dominique\\AppData\\Local\\Arduino15\\packages\\esp8266\\hardware\\esp8266\\3.0.2\\libraries\\Wire" "C:\\Users\\Dominique\\AppData\\Local\\Arduino15\\packages\\esp8266\\hardware\\esp8266\\3.0.2\\libraries\\Wire\\Wire.cpp" -o nul

Generating function prototypes...

"C:\\Users\\Dominique\\AppData\\Local\\Arduino15\\packages\\esp8266\\tools\\xtensa-lx106-elf-gcc\\3.0.4-gcc10.3-1757bed/bin/xtensa-lx106-elf-g++" -D__ets__ -DICACHE_FLASH -U__STRICT_ANSI__ -D_GNU_SOURCE "-IC:\\Users\\Dominique\\AppData\\Local\\Arduino15\\packages\\esp8266\\hardware\\esp8266\\3.0.2/tools/sdk/include" "-IC:\\Users\\Dominique\\AppData\\Local\\Arduino15\\packages\\esp8266\\hardware\\esp8266\\3.0.2/tools/sdk/lwip2/include" "-IC:\\Users\\Dominique\\AppData\\Local\\Arduino15\\packages\\esp8266\\hardware\\esp8266\\3.0.2/tools/sdk/libc/xtensa-lx106-elf/include" "-IC:\\Users\\DOMINI~1\\AppData\\Local\\Temp\\arduino_build_13897/core" -c -w -Werror=return-type -Os -g -free -fipa-pta -mlongcalls -mtext-section-literals -fno-rtti -falign-functions=4 -std=gnu++17 -ffunction-sections -fdata-sections -fno-exceptions -DMMU_IRAM_SIZE=0x8000 -DMMU_ICACHE_SIZE=0x8000 -w -x c++ -E -CC -DNONOSDK22x_190703=1 -DF_CPU=80000000L -DLWIP_OPEN_SRC -DTCP_MSS=536 -DLWIP_FEATURES=1 -DLWIP_IPV6=0 -DARDUINO=10819 -DARDUINO_ESP8266_NODEMCU_ESP12E -DARDUINO_ARCH_ESP8266 "-DARDUINO_BOARD=\"ESP8266_NODEMCU_ESP12E\"" -DLED_BUILTIN=2 -DFLASHMODE_DIO -DESP8266 "-IC:\\Users\\Dominique\\AppData\\Local\\Arduino15\\packages\\esp8266\\hardware\\esp8266\\3.0.2\\cores\\esp8266" "-IC:\\Users\\Dominique\\AppData\\Local\\Arduino15\\packages\\esp8266\\hardware\\esp8266\\3.0.2\\variants\\nodemcu" "-IC:\\Users\\Dominique\\AppData\\Local\\Arduino15\\packages\\esp8266\\hardware\\esp8266\\3.0.2\\libraries\\Wire" "C:\\Users\\DOMINI~1\\AppData\\Local\\Temp\\arduino_build_13897\\sketch\\NodeMCU_02_Recepteur_I2C.ino.cpp" -o "C:\\Users\\DOMINI~1\\AppData\\Local\\Temp\\arduino_build_13897\\preproc\\ctags_target_for_gcc_minus_e.cpp"

"C:\\Program Files (x86)\\Arduino\\tools-builder\\ctags\\5.8-arduino11/ctags" -u --language-force=c++ -f - --c++-kinds=svpf --fields=KSTtzns --line-directives "C:\\Users\\DOMINI~1\\AppData\\Local\\Temp\\arduino_build_13897\\preproc\\ctags_target_for_gcc_minus_e.cpp"

Compilation du croquis...

"C:\\Users\\Dominique\\AppData\\Local\\Arduino15\\packages\\esp8266\\tools\\python3\\3.7.2-post1/python3" -I "C:\\Users\\Dominique\\AppData\\Local\\Arduino15\\packages\\esp8266\\hardware\\esp8266\\3.0.2/tools/signing.py" --mode header --publickey "D:\\00 _ Arduino\\00 _ sketch\\2022\\02 _ Fevrier\\02 _ Communication I2C\\02 - Master Méga - Slave NodeMCU ESP8266\\NodeMCU_02_Recepteur_I2C/public.key" --out "C:\\Users\\DOMINI~1\\AppData\\Local\\Temp\\arduino_build_13897/core/Updater_Signing.h"

"C:\\Users\\Dominique\\AppData\\Local\\Arduino15\\packages\\esp8266\\tools\\xtensa-lx106-elf-gcc\\3.0.4-gcc10.3-1757bed/bin/xtensa-lx106-elf-g++" -D__ets__ -DICACHE_FLASH -U__STRICT_ANSI__ -D_GNU_SOURCE "-IC:\\Users\\Dominique\\AppData\\Local\\Arduino15\\packages\\esp8266\\hardware\\esp8266\\3.0.2/tools/sdk/include" "-IC:\\Users\\Dominique\\AppData\\Local\\Arduino15\\packages\\esp8266\\hardware\\esp8266\\3.0.2/tools/sdk/lwip2/include" "-IC:\\Users\\Dominique\\AppData\\Local\\Arduino15\\packages\\esp8266\\hardware\\esp8266\\3.0.2/tools/sdk/libc/xtensa-lx106-elf/include" "-IC:\\Users\\DOMINI~1\\AppData\\Local\\Temp\\arduino_build_13897/core" -c -Wall -Wextra -Werror=return-type -Os -g -free -fipa-pta -mlongcalls -mtext-section-literals -fno-rtti -falign-functions=4 -std=gnu++17 -MMD -ffunction-sections -fdata-sections -fno-exceptions -DMMU_IRAM_SIZE=0x8000 -DMMU_ICACHE_SIZE=0x8000 -DNONOSDK22x_190703=1 -DF_CPU=80000000L -DLWIP_OPEN_SRC -DTCP_MSS=536 -DLWIP_FEATURES=1 -DLWIP_IPV6=0 -DARDUINO=10819 -DARDUINO_ESP8266_NODEMCU_ESP12E -DARDUINO_ARCH_ESP8266 "-DARDUINO_BOARD=\"ESP8266_NODEMCU_ESP12E\"" -DLED_BUILTIN=2 -DFLASHMODE_DIO -DESP8266 "-IC:\\Users\\Dominique\\AppData\\Local\\Arduino15\\packages\\esp8266\\hardware\\esp8266\\3.0.2\\cores\\esp8266" "-IC:\\Users\\Dominique\\AppData\\Local\\Arduino15\\packages\\esp8266\\hardware\\esp8266\\3.0.2\\variants\\nodemcu" "-IC:\\Users\\Dominique\\AppData\\Local\\Arduino15\\packages\\esp8266\\hardware\\esp8266\\3.0.2\\libraries\\Wire" "C:\\Users\\DOMINI~1\\AppData\\Local\\Temp\\arduino_build_13897\\sketch\\NodeMCU_02_Recepteur_I2C.ino.cpp" -o "C:\\Users\\DOMINI~1\\AppData\\Local\\Temp\\arduino_build_13897\\sketch\\NodeMCU_02_Recepteur_I2C.ino.cpp.o"

D:\00 _ Arduino\00 _ sketch\2022\02 _ Fevrier\02 _ Communication I2C\02 - Master Méga - Slave NodeMCU ESP8266\NodeMCU_02_Recepteur_I2C\NodeMCU_02_Recepteur_I2C.ino: In function 'void setup()':

NodeMCU_02_Recepteur_I2C:129:33: error: no matching function for call to 'onReceive(void (&)())'

In file included from D:\00 _ Arduino\00 _ sketch\2022\02 _ Fevrier\02 _ Communication I2C\02 - Master Méga - Slave NodeMCU ESP8266\NodeMCU_02_Recepteur_I2C\NodeMCU_02_Recepteur_I2C.ino:19:

C:\Users\Dominique\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\3.0.2\libraries\Wire/Wire.h:79:10: note: candidate: 'void TwoWire::onReceive(void (*)(int))' (near match)

   79 |     void onReceive(void (*)(int));      // arduino api

      |          ^~~~~~~~~

C:\Users\Dominique\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\3.0.2\libraries\Wire/Wire.h:79:10: note:   conversion of argument 1 would be ill-formed:

NodeMCU_02_Recepteur_I2C:129:20: error: invalid conversion from 'void (*)()' to 'void (*)(int)' [-fpermissive]

In file included from D:\00 _ Arduino\00 _ sketch\2022\02 _ Fevrier\02 _ Communication I2C\02 - Master Méga - Slave NodeMCU ESP8266\NodeMCU_02_Recepteur_I2C\NodeMCU_02_Recepteur_I2C.ino:19:

C:\Users\Dominique\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\3.0.2\libraries\Wire/Wire.h:80:10: note: candidate: 'void TwoWire::onReceive(void (*)(size_t))' (near match)

   80 |     void onReceive(void (*)(size_t));   // legacy esp8266 backward compatibility

      |          ^~~~~~~~~

C:\Users\Dominique\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\3.0.2\libraries\Wire/Wire.h:80:10: note:   conversion of argument 1 would be ill-formed:

NodeMCU_02_Recepteur_I2C:129:20: error: invalid conversion from 'void (*)()' to 'void (*)(size_t)' {aka 'void (*)(unsigned int)'} [-fpermissive]

Utilisation de la bibliothèque Wire version 1.0 dans le dossier: C:\Users\Dominique\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\3.0.2\libraries\Wire 

exit status 1

no matching function for call to 'onReceive(void (&)())'

type or paste code here

lesept · February 24, 2022, 2:42pm

C'est quand même bizarre cette histoire, car quand je regarde sur le github du Core ESP8266, je trouve la bibliothèque Wire qui a bien une méthode onReceive, illustrée par un exemple.

github.com

esp8266/Arduino/blob/da6ec83b5fdbd5b02f04cf143dcf8e158a8cfd36/libraries/Wire/examples/slave_receiver/slave_receiver.ino

// Wire Slave Receiver
// by devyte
// based on the example by Nicholas Zambetti <http://www.zambetti.com>

// Demonstrates use of the Wire library
// Receives data as an I2C/TWI slave device
// Refer to the "Wire Master Writer" example for use with this

// This example code is in the public domain.


#include <Wire.h>

#define SDA_PIN 4
#define SCL_PIN 5

const int16_t I2C_MASTER = 0x42;
const int16_t I2C_SLAVE = 0x08;

void setup() {

This file has been truncated. show original

Est-ce que tu peux :

Vérifier que tu as bien la même version de cette bibliothèque ? Elle est ici : Arduino/libraries/Wire at da6ec83b5fdbd5b02f04cf143dcf8e158a8cfd36 · esp8266/Arduino · GitHub
Vérifie par exemple le contenu des fichiers pour voir si c'est la même chose que celle de ton PC (par exemple le fichier C:\Users\Dominique\AppData\Local\Arduino15\packages\esp8266\hardware\esp8266\3.0.2\libraries\Wire/Wire.h).
Au besoin l'installer quelque part, si ce n'est pas la même (pas forcément facile à faire)
Tester les exemples : Master Writer sur un ESP8266 et Slave Receiver sur l'autre.

hbachetti · February 24, 2022, 2:54pm

Si tu regardes bien les prototypes des méthodes de TwoWire :

   void onReceive(void (*)(int));      // arduino api
    void onReceive(void (*)(size_t));   // legacy esp8266 backward compatibility
    void onRequest(void (*)(void));

Les deux méthodes onReceive() prennent un pointeur de fonction ayant un paramètre, donc la fonction receiveEvents() doit aussi avoir un paramètre.

lesept · February 24, 2022, 2:54pm

Selon cette page :

github.com/esp8266/Arduino

ESP8266 to ESP8266 i2c

opened 08:58PM - 14 Mar 17 UTC

reubenrodrigues24

With added support for i2c slave from [here](https://github.com/esp8266/Arduino/…compare/master...bjoham:i2c_slave) by @bjoham, after modifying all files. Master (ESP8266) ``` #include <Wire.h> int x = 3; void setup() { Wire.pins(4,5); Wire.begin(); // join i2c bus (address optional for master) Wire.beginTransmission(8); // transmit to device #8 Wire.write(x); // sends one byte Wire.endTransmission(); // stop transmitting } void loop() { } ``` Slave (ESP8266) ``` #include <Wire.h> int x = 3; void setup() { pinMode(D0,OUTPUT); Wire.pins(4,5); Wire.begin(8); // join i2c bus with address #8 Wire.onReceive(receiveEvent); // register event //Serial.begin(9600); // start serial for output // Serial.println("Got something?"); digitalWrite(D0,LOW); } void loop() { delay(100); if (x == 3) { digitalWrite(D0, HIGH); } //If value received is 3 blink LED for 400 ms if (x == 0) { digitalWrite(D0, LOW); } } // function that executes whenever data is received from master // this function is registered as an event, see setup() void receiveEvent(int howMany) { x = Wire.read(); // read one character from the I2C' } ``` I have connected pins D1,D2,GND on both the boards(NodeMCU). This doesn't seem to work. Any help will be appreciated.

La com I2C entre 2 ESP8266 fonctionne depuis la version 2.5.0 du core ESP8266 (2019). Donc, ça marchera peut-être si tu le mets à jour dans le gestionnaire de cartes de l'IDE.

C'est juste !

hbachetti · February 24, 2022, 3:03pm

J'ajoute : même si ce paramètre n'est pas utilisé, comme dans ton exemple précédent :

void receiveEvent(size_t howMany) {

  (void) howMany;
  while (1 < Wire.available()) { // loop through all but the last
    char c = Wire.read(); // receive byte as a character
    Serial.print(c);         // print the character
  }
  int x = Wire.read();    // receive byte as an integer
  Serial.println(x);         // print the integer
}

dom78 · February 24, 2022, 4:56pm

Bonjour,
J'ai testé cela, après la ligne (void) howmany;
j'ai voulu afficher dans le moniteur série pour être sur que cela fonctionné mais rien!!

lesept · February 24, 2022, 7:54pm

Est-ce que tu peux poster tes codes en entier, parce que là on joue un peu aux devinettes depuis 15 messages...?

dom78 · February 25, 2022, 2:17pm

Voici le code Mega 2560 Pro mini (master) et le code simplifié du NodeMCU (slave)

  //----------------------------------------------------------------------------------------------------------
  //  H A R D W A R E   -   M E G A
  //  
  //  Communication I2C (Master)
  //  Rev:  1.0
  //
  //
  //----------------------------------------------------------------------------------------------------------
  //
  //  SDA       20
  //  SCL       21
  //   
  //----------------------------------------------------------------------------------------------------------
  //  0 1   -   S E T U P
  //  0 2   -   L O O P
  //----------------------------------------------------------------------------------------------------------  

    #include <Wire.h>    

    #define PAYLOAD_SIZE 2
        
    #include <LiquidCrystal.h>                            //  Afficheur
    LiquidCrystal lcd(26, 25, 24, 23, 22, 19);

    const int16_t I2C_SLAVE = 0x0B;
            
  //----------------------------------------------------------------------------------------------------------
  //  V A R I A B L E S
  //----------------------------------------------------------------------------------------------------------

    byte i;
    byte j;
    char Dat[15];

    byte OldDataA = 254;
    byte OldDataB = 254;
    byte DataA = 0;
    byte DataB = 0;
    byte Data;

    byte Row;                                             //  Aff
    byte Zon;                                             //  Aff
    byte Val;                                             //  Aff
    byte Pos;                                             //  Aff
    byte Bit_Dat;                                         //  Aff   

    int Compteur; 

    byte Valid = 0;
    byte Act = 9;
    byte Count = 0;
              
  //----------------------------------------------------------------------------------------------------------
  //  0 1   -   S E T U P
  //----------------------------------------------------------------------------------------------------------

  void setup()
  {
    Wire.begin();
    
    Serial.begin (57600);
    
    Serial.println ("Mega Master");
    delay (1000);

    lcd.begin(15, 2);                                     // utilisation d'un écran 16 colonnes et 2 lignes
    delay(10);

    for (byte j = 32; j <= 47;)                           //  Pins zones INPUT
    {
      pinMode(j, INPUT);
      j++;
    }
          
    pinMode(18, OUTPUT);                                  //  Retro
    digitalWrite(18, HIGH);                               //  Retro ON
  
    Compteur = 0;     
  }

  //----------------------------------------------------------------------------------------------------------
  //  W I R E   T R A N S M I T
  //----------------------------------------------------------------------------------------------------------

  void Wire_Trabsmit()
  {
    Count++;
    Wire.beginTransmission(I2C_SLAVE); 
    Wire.write(Data);
    Serial.print(F("sending value : "));
    Serial.println(Data);
    if (Count == 3)
    {
      Serial.println("");
      Count = 0;        
    }                      
    Wire.endTransmission();   
  }
  
  //----------------------------------------------------------------------------------------------------------
  //  D A T A A   -   C O N S T R U C T I O N   -   A F F I C H A G E
  //----------------------------------------------------------------------------------------------------------

  void CA_Data()
  {
    i = 0;
    for (j = 32; j <= 39;)
    {
      Dat[i] =  digitalRead(j) << i;
      DataA = Dat[7] | Dat[6] | Dat[5] | Dat[4] | Dat[3] | Dat[2] | Dat[1] | Dat[0];
      j++;
      i++;
      delay(10);
    }

    if (DataA != OldDataA)
    {
            
      digitalWrite(18, HIGH);                             // Retro ON
      Valid = 1;
      
      Compteur = 0;
      Pos = 8;                                            //Position curseur
      Bit_Dat = 0;                                        //Numero Bit
      Zon = 0;

        while (Bit_Dat <= 7)
        {
          Val = bitRead(DataA, Bit_Dat);
          lcd.setCursor(Pos, 0);

            if (Val == 0)
            {
              lcd.print("-");
            }
            else
            {
              lcd.print(Zon, HEX);
            }

              delay(1);

              Pos = Pos + 1;
              Bit_Dat = Bit_Dat + 1;
              Zon = Zon + 1;

          }
    OldDataA = DataA;                                    
    }
    
  
    i = 8;
    for (j = 40; j <= 47;)
    {
      Dat[i] =  digitalRead(j) << i - 8;
      DataB = Dat[15] | Dat[14] | Dat[13] | Dat[12] | Dat[11] | Dat[10] | Dat[9] | Dat[8];
      j++;
      i++;
      delay(10);
    }

    if (DataB != OldDataB)
    {      
      digitalWrite(18, HIGH);                             // Retro ON
      Valid = 1;
      
      Compteur = 0;    
      Zon = 8;        
      Pos = 8;                                            //Position curseur
      Bit_Dat = 0;                                        //Numero Bit
      
        while (Bit_Dat <= 7)
        {
          Val = bitRead(DataB, Bit_Dat);
          lcd.setCursor(Pos, 1);

            if (Val == 0)
            {
              lcd.print("-");
            }
            else
            {
              lcd.print(Zon, HEX);
            }

              delay(1);

              Pos = Pos + 1;
              Bit_Dat = Bit_Dat + 1;
              Zon = Zon + 1;
        }
    OldDataB = DataB;
    }
  }
      
  //----------------------------------------------------------------------------------------------------------
  //  L O O P
  //----------------------------------------------------------------------------------------------------------

  void loop() 
  {
    CA_Data();

    if (Valid == 1)
    {
      Data = DataA;      
      Wire_Trabsmit();      
      delay(1000);

      Data = DataB;      
      Wire_Trabsmit();      
      delay(1000);
      
      Data = Act;      
      Wire_Trabsmit();      
      delay(2000);
      
      Valid = 0;
    }
              
    delay(200);
    Compteur++;
        
    if (Compteur == 100)
    {
      digitalWrite(18, LOW);                        //  Retro OFF                
    }                          
  }


  //----------------------------------------------------------------------------------------------------------
  //  H A R D W A R E   -   N O D E M C U   -   R E C E P T E U R
  //  
  //  Communication I2C 
  //  Rev:  1.0
  //
  //
  //----------------------------------------------------------------------------------------------------------
  //
  //----------------------------------------------------------------------------------------------------------
  //  0 2   -   S E T U P
  //  0 3   -   L O O P
  //----------------------------------------------------------------------------------------------------------  

    #include <Wire.h>

    #define SDA_PIN D1
    #define SCL_PIN D2

    const int16_t I2C_SLAVE = 0x0B;    

  //----------------------------------------------------------------------------------------------------------
  //  V A R I A B L E S
  //----------------------------------------------------------------------------------------------------------

    byte DataA;
    byte DataB;
    int Data;
    byte Act;
    byte Count = 0;
    
    byte Val;
    int n = 0;

    int numBytes;

  //----------------------------------------------------------------------------------------------------------
  //  0 1   -   R E C E I V E E V E N T S
  //----------------------------------------------------------------------------------------------------------
  
    void receiveEvents (size_t howMany)
    {
      (void) howMany;
      Serial.println ("OK");
    }

  //----------------------------------------------------------------------------------------------------------
  //  0 2   -   S E T U P
  //----------------------------------------------------------------------------------------------------------

  void setup()
  {
    Wire.begin(SDA_PIN, SCL_PIN, I2C_SLAVE);
     
    Serial.begin (9600);
    Serial.println ("");
    Serial.println ("NodeMCU Esclave");
    Serial.println ("");
              
    Wire.onReceive(receiveEvents);
  }

  //----------------------------------------------------------------------------------------------------------
  //  0 2   -   L O O P
  //----------------------------------------------------------------------------------------------------------

  void loop()
  {          
    delay(10);
  }

lesept · February 25, 2022, 3:47pm

Tes deux ESP sont connectés a deux PC différents ? C'est normal que tu mettes des valeurs différentes pour Serial.begin ?

dom78 · February 25, 2022, 3:49pm

Oui deux PC , mais il s'agit d'un ESP (Slave) et d'un méga pro (Master)

lesept · February 25, 2022, 3:51pm

Et 'rien' ça veut dire que rien ne s'affiche dans la console?

dom78 · February 25, 2022, 3:54pm

Sur le Master ou le Slave?
Moi il s'affiche dans les deux, je dois juste faire un reset sur le NodeMCU

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