A set of RFID tags consisting of three key rings in different colors and two white cards. The tags operate at 125 kHz and comply with the EM4100 standard. Seeed Studio 110990035

The USB-C to 3.5 mm mini jack adapter allows you to connect traditional headphones to devices without an audio port, delivering high-quality sound thanks to the built-in DAC converter. Made from durable materials, it is flexible and resistant to damage, making it perfect for everyday use.

At the Feather M0\'s heart is an ATSAMD21G18 ARM Cortex M0 processor, clocked at 48 MHz and at 3.3V logic, the same one used in the new Arduino Zero. This chip has a whopping 256K of FLASH (8x more than the Atmega328 or 32u4) and 32K of RAM (16x as much)! This chip comes with built in USB so it has USB-to-Serial program & debug capability built in with no need for an FTDI-like chip. Adafruit 3179

Module with 5 QTR type optocoupler with analog output. The module operates from 2.9 V to 5.5 V, detects objects at a distance of up to 40 mm. The sensor will be used in projects that require detection of changes in the ground, e.g. in linefollower robots. Pololu 4205

The SST Liquid Level Sensor provides single point liquid detection via a TTL compatible push/pull output. This optical liquid level sensor features a miniature design that allows for installation in areas where space is limited. SEN-13835

The S9V11F3S5C3 switching step-up/step-down regulator efficiently produces a fixed 3.3 V (default) or 5 V (selectable) output whether it is higher or lower than the input voltage, which can range from 3 V to 16 V. The regulator also has fixed 3.3 V low-voltage cutoff with hysteresis that can be used to prevent battery over-discharge.

Digital humidity and temperature sensor, RoHS

This compact (0.4″ × 0.5″) switching step-down (or buck) voltage regulator takes input voltages up to 50 V and efficiently reduces them to 9 V while allowing for a maximum output current of 600 mA. It has a very low dropout, so it can be used with input voltages that are within a few hundred millivolts of its output.

ToF distance sensor module based on the VL6180X system. It offers a range of 2 to 50 cm and communicates via the I2C, UART or Modbus interface. TOF050F

Camera set with OV5647 5 MPx sensor, allows you to rotate the camera, control the angle of inclination and zoom. Works with Raspberry Pi. Swivel base included. ArduCAM B0167B5

Photoelectric liquid level sensor FS-IR02 in a set with a Gravity adapter. DFRobot SEN0205

The WS-630 antenna amplifier improves radio signal reception in the car, supporting FM, VHF, and DAB bands. Thanks to its compact design and simple 12 V power connection, it allows for quick installation and enhancement of sound quality in most vehicles. Suitable for upgrading radio reception in cars operating in difficult signal conditions.

Display 7 "1024x600 IPS compatible with LattePanda V1.0 mini computer. Display powered from LattePanda, no additional power supply needed DFRobot FIT0477

Module with 1 QTR type optocoupler with RC (digital) output. The module operates from 2.9 V to 5.5 V, detects objects at a distance of up to 30 mm. The sensor will be used in projects that require detection of changes in the ground, e.g. in linefollower robots. Pololu 4141

Small LED matrix display with built-in rechargeable battery. Programmable via USB and Windows PC or Bluetooth and iOS and Android applications

Module with 4-digit 7-segment LED display. The board is equipped with a TM1637 driver and communicates via a digital interface

LCD 2x20, 116x37mm, LED backlight (yellow-green), enhanced temperature range, RoHS

This add-on board makes it easy to control two high-power DC motors with a Raspberry Pi. Its twin discrete MOSFET H-bridges support a wide 6.5 V to 36 Voperating range and are efficient enough to deliver a continuous 14 A without a heat sink. The drivers offer basic current limiting functionality, and they accept ultrasonic PWM frequencies for quieter operation.