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Chassis Romi Chassis Kit is the ideal base for building a small mobile robot. The set contains all the necessary mechanical elements for building a mobile circular robot. Self-assembly set. Polol 3506

The versatile Romi chassis is a great starting point for your next mobile robot. This kit includes all the basic mechanical parts to get up and running, including two motors, two wheels, one ball caster, and battery contacts. The wheels and ball are white; all other plastic components are pink.

Gravity: Heart Rate Monitor Sensor is a sensor used to measure heart activity. Adapted for easy use with Arduino. SparkFun SEN0213

NanoPi R6C minicomputer designed by FriendlyElec. It is equipped with a Rockchip RK3588S processor, 8 GB LPDDR4x RAM and 32 GB eMMC Flash memory. Supports booting from microSD cards and works with operating systems such as FriendlyWrt, Android, Debian, Ubuntu, etc. FriendlyELEC NanoPi R6C

Quad DC Motor Driver Shield is an Arduino compatible DC motor driver that allows you to control 4 DC motors with a voltage between 2.5 ... 13.5V and up to 1.2A. DFRobot DRI0039

The sensors operate from 2.7 V to 18 V and provide digital outputs that can be connected directly to a microcontroller or other digital circuit. This module is compatible with all of the Pololu dual-shaft mini plastic gearmotors. Pololu 1523

Module with monostable relay. It allows you to control high-power elements with a microcontroller. Adafruit 3191

Teensy Prop Shield is meant for making light and sound effects on small, handheld props and wearable costumes. This shield features a 2W audio amp, high-speed 5V buffers for driving APA102 LEDs, and an 8MB flash memory. PJRC PROP-SHIELD-LC

Feather board will let you integrate packetized radio (with the RFM69 radio) or LoRa radio (with the RFM9x\'s). These radios are good options for kilometer-range radio, and paired with one of our WiFi, cellular or Bluetooth Feathers, will let you bridge from 433/900MHz to the Internet or your mobile device. Adafruit 3230

Pliers that are perfect for manipulating and removing Seger rings in hard-to-reach places. Made of high-quality chrome-vanadium (CrV) alloy, it guarantees durability, corrosion resistance and solidity in all working conditions. Yato YT-2140

This item is a set of three plastic rollers, a 1″-diameter plastic ball, and a retaining clip that can be used on the front or back ball caster locations on the Romi chassis base plate. The ball is white, and all other parts are red. It is included as part of the red Romi Chassis Kit.

These add-ons for any Feather board will let you integrate packetized radio (with the RFM69 radio) or LoRa radio (with the RFM9x\'s). These radios are good options for kilometer-range radio, and paired with one of our WiFi, cellular or Bluetooth Feathers, will let you bridge from 433/900 MHz to the Internet or your mobile device. Adafruit 3232

Tangle-free USB-A / microUSB-B cable with a length of 1m, in a set with an adapter for Apple iPhone devices, iPad (8-pin Apple Lightning connector). Flat cable, in flexible, silicone insulation, light blue color

This gearmotor is a miniature high-power, 6 V brushed DC motor with long-life carbon brushes and a 29.86:1 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 gearmotor is a miniature high-power, 6 V brushed DC motor with long-life carbon brushes and a 75.81:1 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. Pololu 3064

An Arduino extension that allows you to simultaneously control four DC motors, two stepper motors, or two 5V servos. It uses an L293D chip, which provides stable operation and a current of up to 1.2A per channel at motor voltages of 4.5-12V. An 8-stage shift register reduces the number of pins needed for control, allowing for more efficient use of microcontroller resources. Elecrow Four Channels Motor Shield

A module installed and operating based on the RFID system. AVTMOD08