28 lines
1.4 KiB
Markdown
28 lines
1.4 KiB
Markdown
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# Arduino Nano 33 BLE and Nano 33 BLE Sense
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The [Arduino Nano 33 BLE](https://store.arduino.cc/usa/nano-33-ble-with-headers) and
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[Arduino Nano 33 BLE Sense](https://store.arduino.cc/usa/nano-33-ble-sense) and
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are built around the NINA B306 module, based on Nordic nRF 52840 and containing
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a powerful Cortex M4F. Both include an onboard 9 axis Inertial Measurement Unit (IMU), the LSM9DS1.
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The Nano 33 BLE Sense adds an LPS22HB barometric pressure and temperature sensor,
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an ADPS-9960 digital proximity, ambient light, RGB, and gensture sensor,
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and an MP34DT05 digital microphone.
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Note: the Arduino Nano 33 BLE and BLE Sense do not include a QSPI external
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flash. Any Python code will need to be stored on the internal flash
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filesystem.
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I2C pins `board.SCL1` and `board.SDA1` are not exposed and are used for onboard peripherals.
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Pin `board.R_PULLUP` must be set to high to enable the `SCL1` and `SDA1` pullups for proper operation.
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Pin `board.VDD_ENV` applies power to the LSM9DS1, and must be high for it to be operational.
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Pins `board.MIC_PWR`, `board.PDMDIN`, and `board.PDMCLK` are for the Nano 33 BLE Sense onboard microphone.
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Pin `board.INT_ADPS` is the interrupt pin from the ADPS-9960.
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Pins `board.RGB_LED_R`, `board.RGB_LED_G`, and `board.RGB_LED_B`
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are the red, green and blue LEDS in the onboard RGB LED.
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Pins `board.LED_G` and `board.LED_Y` are onboard green and red LEDs. `board.LED_Y` is also `board.SCK`.
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