Formaldehyde sensor (HCHO) dedicated to measuring ambient air quality. It is used to detect whether the surrounding environment exceeds a set concentration threshold. It is powered by a voltage of 5 V to 24 V and has an output in the form of a two-state digital signal. DFRobot SEN0595

Data logger with LPC2148 chip and microSD card support. The module is equipped with a microUSB connector, Li-Pol battery charger and a microSD card slot. SparkFun WIG-12772

DC-DC Step-Down converter module. It has an input voltage from 6 to 45 V, an output voltage of 6 V and a maximum output current of up to 3.3 A. Pololu 4893

Wired keyboard with Smart ID card reader, US keyboard layout, black color. Natec NKL-1055

The 3D TOF camera is a module that consists of the BL702 system and the Juyou 100x100 TOF sensor. It is a 3D sensor that allows you to measure distances up to 1.5 meters. It is equipped with a 1.14-inch LCD screen that allows real-time viewing of depth maps along with color maps. DFRobot SEN0581

Module with an IO pin expander based on the TCA9534 system. It allows you to add 8 GPIO pins to an I2C-controlled project. SparkFun DEV-17047

Adafruit 2269 - Bluefruit LE Sniffer - Bluetooth Low Energy (BLE 4.0) - nRF51822 - v1.0

Adafruit 2267 - Bluefruit LE Friend - Bluetooth Low Energy (BLE 4.0) - nRF51822

Cable with USB plugs type A and micro-USB type B, cable length 1m. The cable has a red nylon braid

Module with 5 colored buttons. Each button is powered independently and has an output informing about its status

FRAM chip has 64 Kbits (8 KBytes) of storage, interfaces using SPI, and can run at up to 20MHz SPI clock rates. Each byte can be read and written instantaneously (like SRAM) but will keep the memory for 95 years at room temperature. Adafruit 1897

Module with a relay and WiFi communication. Compatible with ESP-01 or ESP-01S

Pulse generator module based on the NE555 system with frequency control using a potentiometer. It is powered with the voltage ranging from 5 V to 12 V

ACS714 Current Sensor Carrier -5 to +5A

The HDMI-DVI cable by Lanberg is a reliable solution for connecting audio-video equipment, enabling bidirectional communication. With gold-plated connectors, double shielding, and a durable construction, it ensures longevity and high-quality transmission. It supports 4K resolution and a bandwidth of 6.5 Gb/s, making it an ideal choice for both home and professional applications. CA-HDDV-20CU-0030-BK

DC-DC Step-Down converter module. It has an input voltage from 7.5 to 45 V, an output voltage of 7.5 V and a maximum output current of up to 3 A. Pololu 4894

TDA7393, 2x32W Dual bridge audio car amplifier, MULTIWATT15

Module with an analog MQ5 LPG sensor. It is powered with the voltage of 5 V and has an analog output. DFRobot SEN0130

Module with LCD display 16x2 characters with gray backlight. It is supplied with the voltage from 3.3 V to 5 V and communicates via the I2C interface. DFRobot DFR0557

Module with an analog MQ6 propane sensor. It is powered with the voltage of 5 V and has an analog output. DFRobot SEN0131