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The module with a heart rate sensor and the SpO2 level dedicated to micro:bit. It is based on the MAX30102 chip and communicates via the I2C interface. SparkFun SEN-15271

LiPo 3.7 V battery charger module with USB type C socket. SparkFun PRT-15217

PRT-12711

Pulley GT2 36T B5 for a shaft with a diameter of 5 mm. It has 36 teeth, suitable for a 6mm wide belt

Module with DA7280 vibration motor controller and LRA (Linear Resonant Actuator) motor. It allows you to add vibration feedback from the device to the project. SparkFun ROB-17590

AG Thermopads without glue are used where it is not possible to use thermal paste. They are very flexible. They are characterized by high compressibility which ensures a good fit to elements that require cooling. They do not contain glue. AG Thermopaste ART.AGT-305

The 256 MB microSD card is an essential accessory for enabling audio functions and saving settings in ToolkitRC M7AC and M9 chargers. Simple installation and plug-and-play functionality ensure immediate usability without extra configuration.

A4990 Dual Motor Driver Carrier

This Bluetooth Audio receiver module includes a USB port and TF card slot. With a pre-amp output, you can drive headphones or a 3W speaker directly. You can also add an active power amplifier and connect a loudspeaker. The module supports MP3, WMA, WAV and lossless FLAC audio formats. DFRobot TEL0108

The Step-Down D24V6F5 Buck Voltage Regulator module gives the output voltage of 5V with a wide input voltage range of 7-42V and a maximum output current of 600 mA. Pololu 2107

This gearmotor is a miniature high-power, 6 V brushed DC motor with long-life carbon brushes and a 248.98:1 metal gearbox. It has a cross section of 10 × 12 mm, and the D-shaped gearbox output shaft is 9 mm long and 3 mm in diameter. This version also has a 4.5 × 1 mm extended motor shaft.

Pololu 4-Channel RC Servo Multiplexer (Assembled)

Bambu Lab PLA Basic is a versatile PLA filament, ideal for fast and precise 3D printing, ensuring excellent print quality. Bambu Lab PLA Basic blue

Compact, low-power 2.4 GHz Bluetooth Beacon solution, ideal for sensor monitoring, asset tracking, and real-time location. With extremely low power consumption, it can operate for years on a 3V button cell battery, making it an efficient choice for IoT applications. Configuration of the module is simple and intuitive thanks to the InPlay NanoBeacon Config Tool, which enables easy programming without the need to write code, providing a user-friendly graphical interface to set the device parameters. SparkFun WRL-21293

This gearmotor is a miniature high-power, 6 V brushed DC motor with long-life carbon brushes and a 9.96:1 metal gearbox. It has a cross section of 10 × 12 mm, and the D-shaped gearbox output shaft is 9 mm long and 3 mm in diameter.

DAC 2 Hat module for M5StickC – precise I2C digital-to-analog conversion (0–5V / 0–10V) with short-circuit protection. M5Stack U068-B

Adafruit module with Si7021 temperature and humidity sensor. Sensor Sillicon Labs can measure temperature in the range of -10 ~ 125 ° C, and humidity in the range of 0-100 & RH. The sensor communicates using the I2C interface. Adafruit 3251

INA169 current sensor module. The system can be supplied with the voltage from 2.7 V to 60 V and has an analog output. SparkFun SEN-12040

Miniature DC motor with a rated voltage of 3 V. It can rotate up to 11,800 rpm and consumes a current of up to 335 mA