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feat(wire): std::functional Wire slave callback functions #11582
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67c3205
feat(wire): adds std::functional to slave callback functions
SuGlider c5b3b53
feat(wire): adds std::functional to slave callback functions
SuGlider e151d4c
feat(wire): adds std::functional to slave callback functions
SuGlider 694df6f
fix(wire): fixes C2 no slave
SuGlider dbf9750
fix(wire): typo and sintax error
SuGlider a12f4bc
fix(wire): removing commentary
SuGlider 12bae35
feat(wire): better callback performance
SuGlider d5e8571
feat(wire): adds a new example using lambda function callback
SuGlider f2fce44
feat(wire): documentation update with new feature
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37 changes: 37 additions & 0 deletions
37
libraries/Wire/examples/WireSlaveFunctionalCallback/WireSlaveFunctionalCallback.ino
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Original file line number | Diff line number | Diff line change |
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@@ -0,0 +1,37 @@ | ||
// This example demonstrates the use of functional callbacks with the Wire library | ||
// for I2C slave communication. It shows how to handle requests and data reception | ||
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#include "Wire.h" | ||
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#define I2C_DEV_ADDR 0x55 | ||
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uint32_t i = 0; | ||
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void setup() { | ||
Serial.begin(115200); | ||
Serial.setDebugOutput(true); | ||
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Wire.onRequest([]() { | ||
Wire.print(i++); | ||
Wire.print(" Packets."); | ||
Serial.println("onRequest"); | ||
}); | ||
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Wire.onReceive([](int len) { | ||
Serial.printf("onReceive[%d]: ", len); | ||
while (Wire.available()) { | ||
Serial.write(Wire.read()); | ||
} | ||
Serial.println(); | ||
}); | ||
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Wire.begin((uint8_t)I2C_DEV_ADDR); | ||
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#if CONFIG_IDF_TARGET_ESP32 | ||
char message[64]; | ||
snprintf(message, 64, "%lu Packets.", i++); | ||
Wire.slaveWrite((uint8_t *)message, strlen(message)); | ||
#endif | ||
} | ||
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void loop() {} |
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Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,5 @@ | ||
{ | ||
"requires": [ | ||
"CONFIG_SOC_I2C_SUPPORT_SLAVE=y" | ||
] | ||
} |
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