DC-DC Step-Down converter module AP63203 with an output voltage of 3.3 V, an input voltage of 3.8 to 32 V and a maximum output current of 2 A. SparkFun COM-18356

OLED display, alphanumeric 2x16, 80x36 mm, negative (black background), white pixels, 3V/5V, RoHS

Power adapter with ATX computer connector and banana sockets with 3.3 V, 5 V, +12 V and -12 V voltage outputs. Mounting kit. SparkFun KIT-12867

WiFi 2.4 GHz, IEEE Std. 802.11b RF Transceiver Module, Connector for External Antenna, Microchip, RoHS

A miniature module with a LiPo battery charger with a capacity of 500 mA. SparkFun DEV-11893

Unshielded UTP category 5E Ethernet network cable with RJ45 plugs. Lanberg PCU5-10CC-0500-B

Module with 13 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 4213

A small self-assembly module that is used to learn numbers in binary code. It allows you to get acquainted with the bit representation of numbers by having fun. SparkFun KIT-12037

LilyPad reed switch in a black insulated casing preventing the element from breaking. SparkFun DEV-13343

Audio module with Jack (TRS) connector and THAT 1206 balanced line receiver. Offers low distortion and high attenuation. SparkFun BOB-14002

WIG-12897WAV file player module controlled by UART interface or switching inputs. It is based on a 2 W audio amplifier. The board has a 3.5 mm audio output and a speaker connector. The files are played from the microSD card. SparkFun DEV-13660

A module with six GNSS antennas designed to test various solutions within the framework of GPS, GLONASS, Galileo or BeiDou geolocation systems. SparkFun GPS-15247

Module with LCD TFT display with a diagonal of 1.8" and a resolution of 160x128 px, equipped with a microSD slot. Communication via the SPI interface. SparkFun LCD-15143

The enclosure allows you to place a Raspberry PI B + / 2 computer and a 7 "touch screen in it, thus creating a compact design that can act as a tablet, presentation screen or operator panel. CBRPP-TS-BLK / WHT

The module with a heart rate sensor and the SpO2 level dedicated to micro:bit. It is based on the MAX30102 chip and communicates via the I2C interface. SparkFun SEN-15271

Module with 25 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 50 mm. The sensor will be used in projects that require detection of changes in the ground, e.g. in linefollower robots. Pololu 4225

XBee adapter with pads with holes for sewing the module to clothes and fabrics. SparkFun DEV-12921

A simple adapter with a microUSB type B connector for goldpin with a 2.54 mm pitch. Perfect for use with a breadboard. SparkFun BOB-12035

LCD display 2x16, 80x36mm, FSTN Positive, RGB LED backlight, extended temperature range, RoHS