A precision reflective sensor utilizing an IR diode and a phototransistor to measure light reflected from a surface. It offers an analog voltage output proportional to the reflected light and an optimal measurement range of 10 mm. Its low power consumption and compact size make it ideal for line-follower robots, edge detection systems, and educational projects. Pololu 4440

Kit includes 6 spools of yellow, green, red, blue, black and white wires with silicone flexible insulation. The set also includes heat shrink tubing, cable ties, insulation stripper and insulation tape

Set of 6 wire spools in yellow, green, red, blue, black and white with silicone flexible insulation

DIP socket, 28-pin, precision, pitch 2.54mm, spacing 7.62mm, RoHS

DIP base, 24-pin, precision, pitch 2.54mm, spacing 7.62mm, RoHS

This step-down converter module allows you to reduce the voltage from 5-60V to a stable 5V at a current of up to 11A. Its high efficiency of up to 95% and low power losses make it ideal for applications requiring high current and stable power. The device features built-in overcurrent, thermal, and reverse connection protection, as well as a soft-start function and a Power Good indication. Pololu 5671

DIP socket, 24-pin, precision, pitch 2,54mm, spacing 15,24mm, RoHS DIP24 PREC.

Quartz resonator, housing HC49S (low), RoHS

The ULN2003A system consists of seven Darlington chips, housed in a DIP16 housing.

DIP socket, 20-pin, precision, pitch 2.54mm, spacing 7.62mm, RoHS

USB-UART/I2C converter based on the MCP2221 chip. It enables communication of devices with UART or I2C interface with a computer. SB Components 21246

Module with a differential pressure sensor based on the MPXV5010DP system. It uses a 22-bit ADC converter and measures the pressure between the two inlets up to 10 kPa. SB Components 20638

A communication module based on the Raspberry Pi RP2040 microcontroller, designed for data transmission in the 868 MHz band. It supports point-to-point LoRa and LoRaWAN operation, offering long range and low power consumption. The board is equipped with six Crowtail interfaces, an integrated battery charging circuit, and the ability to be powered by a solar panel. Compatibility with the Arduino IDE and MicroPython makes it an ideal platform for building IoT nodes, weather stations, and environmental monitoring systems. Elecrow RA-08H LoRaWan Node

DIP stand, 6-pin, precision, pitch 2.54mm, spacing 7.62mm, RoHS

This step-down converter module allows you to reduce the voltage from 3.5-60V to a stable 3.3V at a current of up to 12A. Its high efficiency of up to 95% and low power losses make it ideal for applications requiring high current and stable power. The device features built-in overcurrent, thermal, and reverse connection protection, as well as a soft-start function and a Power Good indication. Pololu 5670

The step-down converter module allows for voltage reduction from 5.3-60V to a stable 5.3V at currents up to 11A. High efficiency of up to 95% and low power losses make it ideal for applications requiring high current and stable power. The device features built-in overcurrent, thermal, and reverse connection protection, as well as a soft-start function and a Power Good indication. Pololu 5672