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Pin configuration
visuve edited this page Jun 8, 2024
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4 revisions
| Usage | Capability | Name | Pin | Pin | Name | Capability | Usage |
|---|---|---|---|---|---|---|---|
| BME680 +3.3v | +3.3v | 1 | 2 | +5v | Fan Tachometer +5v | ||
| BME680 SDA | I2C SDA | GPIO 2 | 3 | 4 | +5v | None | |
| BME680 SCL | I2C SCL | GPIO 3 | 5 | 6 | Ground | None | |
| None | GPIO 4 | 7 | 8 | GPIO 14 | UART TX | None | |
| BME680 Ground | Ground | 9 | 10 | GPIO 15 | UART RX | None | |
| None | GPIO 17 | 11 | 12 | GPIO 18 | PCM CLK / PWM0 | None | |
| None | GPIO 27 | 13 | 14 | Ground | None | ||
| Fan 1 Tachometer Signal | GPIO 22 | 15 | 16 | GPIO 23 | Fan 2 Tachometer Signal | ||
| None | +3.3v | 17 | 18 | GPIO 24 | None | ||
| None | SPI MOSI | GPIO 10 | 19 | 20 | Ground | None | |
| None | SPI MISO | GPIO 9 | 21 | 22 | GPIO 25 | None | |
| None | SPI CLK | GPIO 11 | 23 | 24 | GPIO 8 | SPI CE0 | None |
| None | Ground | 25 | 26 | GPIO 7 | SPI CE1 | None | |
| None | I2C ID EEPROM | GPIO 0 | 27 | 28 | Reserved | I2C ID EEPROM | None |
| Water Level Sensor 1 | GPIO 5 | 29 | 30 | Ground | None | ||
| Water Level Sensor 2 | GPIO 6 | 31 | 32 | GPIO 12 | PWM0 | Fan 1 & 2 PWM Signal | |
| Irrigation Pump 1 | PWM1 | GPIO 13 | 33 | 34 | Ground | None | |
| Fan 1 Toggle | PWM1 / PCM FS | GPIO 19 | 35 | 36 | GPIO 16 | Irrigation Pump 2 | |
| Relay 8 (unused) | GPIO 26 | 37 | 38 | GPIO 20 | PCM DIN | Fan 2 Toggle | |
| Fan Tachometer Ground | Ground | 39 | 40 | GPIO 21 | PCM DOUT | Relay 7 (unused) |