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31 lines
886 B
31 lines
886 B
/* The true ESP32 chip ID is essentially its MAC address. |
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This sketch provides an alternate chip ID that matches |
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the output of the ESP.getChipId() function on ESP8266 |
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(i.e. a 32-bit integer matching the last 3 bytes of |
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the MAC address. This is less unique than the |
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MAC address chip ID, but is helpful when you need |
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an identifier that can be no more than a 32-bit integer |
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(like for switch...case). |
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created 2020-06-07 by cweinhofer |
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with help from Cicicok */ |
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#include <Arduino.h> |
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uint32_t chipId = 0; |
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void setup() { |
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Serial.begin(115200); |
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} |
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void loop() { |
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for(int i=0; i<17; i=i+8) { |
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chipId |= ((ESP.getEfuseMac() >> (40 - i)) & 0xff) << i; |
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} |
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Serial.printf("ESP32 Chip model = %s Rev %d\n", ESP.getChipModel(), ESP.getChipRevision()); |
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Serial.printf("This chip has %d cores\n", ESP.getChipCores()); |
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Serial.print("Chip ID: "); Serial.println(chipId); |
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delay(3000); |
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}
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