Your 5V system can wield great power with this big, beefy relay board. Kit contains all the parts you need to get your high-power load under control. Sparkfun KIT-13815

Module with LoRa transmitter based on RFM95 (SX1276 LoRa®). It works with a frequency of 433 MHz, maximum power up to 100 mW and a power gain of up to + 20dBm. The module has a built-in antenna, but it is possible to connect an external antenna (MHF connector). The module has a connector in accordance with the Grove standard. Seeed studio 113060007

5-port USB 3.0 Hub with controls and switches for each port. The set includes a 12 V power supply with a capacity of 2 A

Module with 5 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 40 mm. The sensor will be used in projects that require detection of changes in the ground, e.g. in linefollower robots. Pololu 4105

IS31FL3731 LED Matrix Opto Feather Platform Evaluation Expansion Board. BLUE matrix. Adafruit 3137

IS31FL3731 LED Matrix Opto Feather Platform Evaluation Expansion Board. GREEN matrix. Adafruit 3136

IS31FL3731 LED Matrix Opto Feather Platform Evaluation Expansion Board. YELLOW matrix. Adafruit 3135

The PAC1934 is an advanced multi-channel DC power and energy monitor from Microchip that provides precise monitoring and data accumulation, ideal for power management systems and IoT applications.

IS31FL3731 LED Matrix Opto Feather Platform Evaluation Expansion Board. RED matrix. Adafruit 3134

Set of 360 electrical connectors and terminals supplied in a practical organizer case, designed for making and repairing electrical connections in automotive and industrial installations. Yato YT-06890

Module with a black and white e-Paper display with a diagonal of 2.66" and a resolution of 296x152 px. Communication via the SPI interface. Waveshare Pico-ePaper-2.66

Module with 1 optocoupler type QTRXL with RC (digital) output. It is supplied with the voltage from 2.9 to 5.5 V, detects objects at a distance of up to 80 mm. Pololu 4501

Adapter (expansion module) with M.2 connector (A+E Key) and two SATA 3.0 sockets dedicated to LattePanda Delta and Alpha. DFRobot FIT0771

The motor driver card can drive 24 servo motors at most. It can be used to drive a multiple-joint robot machine, such as Hexapod Robot, Biped Robot, and Arm Robot. P0288

The Embest LM35 TFT LCD display complements the EM-LPC2478B (P47B) kit, providing a color screen with a touch panel and a resolution of 320×240. It is designed for use in embedded projects and applications with an interactive GUI.

Module with 6 QTRX 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 40 mm. The sensor will be used in projects that require detection of changes in the ground, e.g. in linefollower robots. Pololu 4306

Wireless, precise temperature sensor with high accuracy with built-in recorder. Works with thermoelectric sensors type K, J, T, N, E, B, S and R

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