| Feature | Description |

| Alvik on-board Core | STM32 Arm® Cortex®-M4 32 Bit |

| Alvik Main Controller | Arduino® Nano ESP32 |

| Connectivity | Wi-Fi®, Bluetooth® LE |

- At the top a Nano ESP32 acts like the main controller and can communicate with the STM32 through a set of dedicated APIs.

| **Controllers** | **Product page** | **Datasheet** |

| STM32F411RC | [Link](https://www.st.com/en/microcontrollers-microprocessors/stm32f411rc.html#st_description_sec-nav-tab) | [Link](assets/STM32_datasheet.pdf) |

| Arduino® Nano ESP32 | [Link](https://docs.arduino.cc/hardware/nano-esp32/) | [Link](https://docs.arduino.cc/resources/datasheets/ABX00083-datasheet.pdf) |

Alvik comes with a large number of onboard sensors, from color detection to distance sensors or inertial measurement units, all of which are listed in the following table:

| **Description** | **Part Name** | **Product page** | **Datasheet** |

| Color detection (x1) | APDS 9660 | [Link](https://www.broadcom.com/products/optical-sensors/integrated-ambient-light-and-proximity-sensors/apds-9960) | [Link](assets/APDS-9960_datasheet.pdf) |

| IMU (x1) | LSM6DSOX | [Link](https://www.st.com/en/mems-and-sensors/lsm6dsox.html) | [Link](assets/LSM6_datasheet.pdf) |

| Time of Flight distance sensor (x1) | VL53L7CXV0GC | [Link](https://www.st.com/en/imaging-and-photonics-solutions/vl53l7cx.html) | [Link](assets/VL53_datasheet.pdf) |

The motors have the following technical specifications:

| **Description** | **Information** |

| Operating Voltage | 6 VDC |

| No load Current | 70 mA |

| Max load Current | 90 mA |

Alvik has two fully programmable RGB LEDs named `DL1` and `DL2` at its top.

| **Description** | **Information** |

| RGB LED Left | DL1 |

| RGB LED Right | DL2 |

The robot is compatible with the following communication protocols:

| **Description** | **Information** |

| I2C | Groove and Qwiic connector |

| PWM Servomotor Control (x2) | Servo Motor connector |

| **Part** | **Quantity** | **Details** |

| Arduino® Nano ESP32 | 1 | Main controller of the robot |

| Main PCB | 1 | Main PCB of the robot |

| STM32 Arm® Cortex®-M4 32 Bit | 1 | Onboard STM32 auxiliary controller |

| 6-Axis Gyro/Accelerometer | 1 | 6-Axis Gyro and Accelerometer sensor |

| Front PCB | 1 | Robot auxiliary PCB with additional sensors |

| ToF Distance Sensor | 1 | Time-of-Flight Distance sensor up to 350 cm , mounted on the Front PCB |

| Grove Connector | 2 | I2C Grove Connector to extend robot's capabilities |

| Qwiic Connector | 2 | I2C Qwiic Connector to extend robot capabilities |

| Servomotor Connector | 2 | 3-pins connector to attach servomotors |

There are three levels of power inside the robot:

| **Level** | **Description** |

| +3V7 | From the battery, the reference level is 3.7 V but it can goes from 3.0 V to 4.2 V |

| +5V | After the Boost Converter |

| +3V3 | After the Step-Down Converter |

Alvik has a series of additional connectors to expand its possibilities located at the back of the robot:

| **Description** | **Information** |

| Qwiic Connector (x2) | I2C Connectivity with compatible sensors and actuators using the Qwiic estandard |

| I2C Grove Connector (x2) | I2C Connectivity with compatible sensors and actuators using the Grove estandard |

| PWM Servomotor Control (x2) | 3-pins Servo Motor connector compatible with a wide ranger of 3rd party manufacturers |

| Certification | Status (AKX00066) |

| **CE (EU)** | Yes |

| **UKCA (UK)** | Yes |

| **RCM (Australia)** | Yes |

Arduino boards are in compliance with RoHS 2 Directive 2011/65/EU of the European Parliament and RoHS 3 Directive 2015/863/EU of the Council of 4 June 2015 on the restriction of the use of certain hazardous substances in electrical and electronic equipment.

| **Substance** | **Maximum Limit (ppm)** |

| Lead (Pb) | 1000 |

| Cadmium (Cd) | 100 |

| Mercury (Hg) | 1000 |

| Company name | Arduino S.r.l. |

| Company Address | Via Andrea Appiani, 25 Monza, MB, 20900 (Italy) |

| Reference | Description | Link |

| 1 | Arduino Lab for MicroPython (Desktop) | <https://docs.arduino.cc/micropython/> |

| 2 | Arduino IDE (Desktop) | <https://www.arduino.cc/en/Main/Software> |

| 3 | Arduino Cloud Editor | <https://create.arduino.cc/editor> |

| Date | **Revision** | **Changes** |

| 20/12/2024 | 3 | Add Certifications |

| 13/05/2024 | 2 | Robot's Expandability section added |

| 24/04/2024 | 1 | First Release |