56 lines
1.4 KiB
Plaintext
56 lines
1.4 KiB
Plaintext
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This application:
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D2 = 4; // DHT DATA I/O
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D3 = 0; // BUTTON - most modules have it populated on PCB
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D4 = 2; // LED (RELAY) - most modules have it populated, on ESP32 is with reversed logic levels
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Pinout ESP12 (8266)
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D GPIO In Out Notes
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D0 16 no interrupt no PWM or I2C support HIGH at boot used to wake up from deep sleep
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D1 5 OK OK often used as SCL (I2C)
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D2 4 OK OK often used as SDA (I2C)
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D3 0 PU OK pulled up connected to FLASH button, boot fails if pulled LOW
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D4 2 PU OK pulled up HIGH at boot connected to on-board LED, boot fails if pulled LOW
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D5 14 OK OK SPI (SCLK)
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D6 12 OK OK SPI (MISO)
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D7 13 OK OK SPI (MOSI)
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D8 15 pulled to GND OK SPI (CS) Boot fails if pulled HIGH
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RX 3 OK RX pin HIGH at boot
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TX 1 TX pin OK HIGH at boot debug output at boot, boot fails if pulled LOW
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A0 ADC0 Analog Input
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Pinout ESP32
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IO In Out Notes
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0 PU OK pulled-up input, outputs PWM signal at boot
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1 TX OK debug output at boot
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2 OK OK connected to on-board LED
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3 OK RX HIGH at boot
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4 OK OK
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5 OK OK outputs PWM signal at boot
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6-11 x x connected to the integrated SPI flash
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12 OK OK boot fail if pulled high
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13 OK OK
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14 OK OK outputs PWM signal at boot
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15 OK OK outputs PWM signal at boot
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16 OK OK
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17 OK OK
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18 OK OK
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19 OK OK
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21 OK OK
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22 OK OK
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23 OK OK
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25 OK OK
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26 OK OK
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27 OK OK
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32 OK OK
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33 OK OK
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34 OK input only
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35 OK input only
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36 OK input only
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39 OK input only
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