variants: import Nano 33 BLE Sense updates from 0.55.0#201
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Pull request overview
This PR imports Arduino Nano 33 BLE Sense (nRF52840) variant updates, expanding the variant’s devicetree configuration and adding variant initialization logic to support board-specific peripherals and sensor power behavior.
Changes:
- Added
initVariant()logic to enable sensor power on startup and a 1200-bps reset hook. - Expanded the variant devicetree overlay with additional digital pins, dual I2C exposure, updated ADC resolution, flash partitions, and peripheral nodes.
- Added per-variant example skip/known-issue metadata files and a variant-specific Kconfig fragment.
Reviewed changes
Copilot reviewed 5 out of 5 changed files in this pull request and generated 3 comments.
Show a summary per file
| File | Description |
|---|---|
| variants/arduino_nano_33_ble_nrf52840_sense/variant.cpp | Adds variant init code for sensor power enable and reset behavior. |
| variants/arduino_nano_33_ble_nrf52840_sense/arduino_nano_33_ble_nrf52840_sense.overlay | Updates devicetree mappings (pins/PWM/ADC/I2C/flash layout) for the Sense variant. |
| variants/arduino_nano_33_ble_nrf52840_sense/arduino_nano_33_ble_nrf52840_sense.conf | Adds variant Kconfig defaults (notably USB/BT/peripheral enables). |
| variants/arduino_nano_33_ble_nrf52840_sense/skip_these_examples.txt | Adds a variant-specific list of examples/libraries to exclude. |
| variants/arduino_nano_33_ble_nrf52840_sense/known_example_issues.txt | Adds a placeholder list for known failing examples for this variant. |
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| pwms = <&pwm1 1 PWM_HZ(500) PWM_POLARITY_NORMAL>, | ||
| <&pwm1 2 PWM_HZ(500) PWM_POLARITY_NORMAL>, | ||
| <&pwm1 3 PWM_HZ(500) PWM_POLARITY_NORMAL>, | ||
| <&pwm2 0 PWM_HZ(500) PWM_POLARITY_NORMAL>, | ||
| <&pwm2 1 PWM_HZ(500) PWM_POLARITY_NORMAL>, | ||
| <&pwm2 2 PWM_HZ(500) PWM_POLARITY_NORMAL>, | ||
| <&pwm2 3 PWM_HZ(500) PWM_POLARITY_NORMAL>; |
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| CONFIG_USB_DEVICE_STACK=y | ||
| CONFIG_USB_DEVICE_PRODUCT="Arduino Nano 33 BLE" | ||
| CONFIG_USB_DEVICE_MANUFACTURER="Arduino" | ||
| CONFIG_USB_DEVICE_VID=0x2341 | ||
| CONFIG_USB_DEVICE_PID=0x035A | ||
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| CONFIG_USB_CDC_ACM=y | ||
| CONFIG_USB_CDC_ACM_RINGBUF_SIZE=1024 | ||
| CONFIG_UART_LINE_CTRL=y | ||
| CONFIG_CDC_ACM_DTE_RATE_CALLBACK_SUPPORT=y | ||
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| static const struct gpio_dt_spec enable_sensors = | ||
| GPIO_DT_SPEC_GET(DT_PATH(zephyr_user), pin_enable_gpios); | ||
| if (gpio_is_ready_dt(&enable_sensors)) { | ||
| gpio_flags_t flags = enable_sensors.dt_flags | GPIO_OUTPUT_HIGH | GPIO_ACTIVE_HIGH | NRF_GPIO_DRIVE_H0H1; | ||
| gpio_pin_configure(enable_sensors.port, enable_sensors.pin, flags); | ||
| gpio_pin_set(enable_sensors.port, enable_sensors.pin, HIGH); | ||
| delay(500); | ||
| } |
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DhruvaG2000
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I see some open comments from copilot as well, please take a look and resolve
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| // chosen { | ||
| // zephyr,log-uart = &log_uarts; | ||
| // }; | ||
| // | ||
| // log_uarts: log_uarts { | ||
| // compatible = "zephyr,log-uart"; | ||
| // uarts = <&uart0 &board_cdc_acm_uart>; | ||
| // }; |
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Since USB enablement is also part of the series of PRs, I will handle this after completing those. That would come expected results.
soburi
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July 24, 2026 13:58
- Refactored ZephyrSerial's send/receive logic and protected the RX/TX ring buffers with semaphores. - Modified `write()` to write the entire payload by calling `yield()` if the data exceeds buffer capacity. - Added support for `availableForWrite()`, `flush()`, and the `Print::write` overload to align with the Arduino Core implementation. - UART re-initialization logic move to `_reinit_if_needed()`. - Added a mechanism to shift the standard UART to `Serial1` (or higher) if `Serial` is occupied by `cdc_acm_serial` or `arduino_router_serial`. - Added macros (such as `ARDUINO_CONSOLE_SERIAL` and `ARDUINO_HARDWARE_SERIAL`) to reference `Serial` objects based on their specific use cases. Co-authored-by: Kurt Eckhardt <kurte@rockisland.com> Co-authored-by: Luca Burelli <l.burelli@arduino.cc> Co-authored-by: Martino Facchin <m.facchin@arduino.cc> Co-authored-by: Mattia Pennasilico <m.pennasilico@arduino.cc> Co-authored-by: Tamas Jozsi <tamas.jozsi@silabs.com> Co-authored-by: iabdalkader <i.abdalkader@gmail.com> Co-authored-by: kurte <kurte@rockisland.com> Co-authored-by: pennam <m.pennasilico@arduino.cc> Signed-off-by: TOKITA Hiroshi <tokita.hiroshi@gmail.com>
Import codes to support SerialUSB function. Co-authored-by: Daniele Cloralio <d.cloralio@arduino.cc> Co-authored-by: Luca Burelli <l.burelli@arduino.cc> Co-authored-by: Martino Facchin <m.facchin@arduino.cc> Co-authored-by: iabdalkader <i.abdalkader@gmail.com> Co-authored-by: kurte <kurte@rockisland.com> Co-authored-by: pennam <m.pennasilico@arduino.cc> Signed-off-by: TOKITA Hiroshi <tokita.hiroshi@gmail.com>
Bring in the Nano 33 BLE Sense variant changes from the 0.55.0 delta, including board configuration, extended pin mappings, peripheral setup, sensor power initialization, and example skip metadata. USB has not yet been implemented in this repository, cdc_acm_uart is disabled. Co-authored-by: Daniele Cloralio <d.cloralio@arduino.cc> Co-authored-by: Luca Burelli <l.burelli@arduino.cc> Co-authored-by: Martino Facchin <m.facchin@arduino.cc> Co-authored-by: Mike S <CyberMerln@gmail.com> Co-authored-by: bogdanf132 <bogdan_ivanus@yahoo.com> Co-authored-by: pennam <m.pennasilico@arduino.cc> Signed-off-by: TOKITA Hiroshi <tokita.hiroshi@gmail.com>
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Bring in the Nano 33 BLE Sense variant changes from the 0.55.0 delta, including board configuration, extended pin mappings, peripheral setup, sensor power initialization, and example skip metadata.
USB has not yet been implemented in this repository, cdc_acm_uart is disabled.
This is a temporary measure; additional modifications are required to allow the Nano 33 BLE and Nano 33 BLE Sense to coexist.