Module with RTC and MicroSD socket for D1 Mini

Pmod I2S2 is a module with 24-bit A / C and D / C audio converters derived from standard 3,5 mm Jack connectors. Thanks to them, it is possible to send and receive stereo audio signals using the I2S protocol. Digilent 410-379

Module with a capacitive fingerprint reader with UART and USB interface. Waveshare Capacitive Fingerprint Reader (B)

Safety system for two Li-Ion cells with 7.4V. The module has the function of charging cells with the balancer, discharging and the function of protecting the cells against discharge. Cells can be charged with continuous current up to 5A. modBMS5A

FRAM memory module with MB85RC256V chip with a capacity of 32 kB. It is supplied with the voltage from 2.7 to 5.5 V and communicates via the I2C interface

Step-Up/Step-Down converter with adjustable output voltage from 0.8 to 33 V, input voltage from 4.5 to 30 V and a maximum current of 5 A. It is equipped with a voltmeter with a display

A module with a set of resistors and mechanical switches that allows you to adjust the resistance in the range from 0 to 999990 Ω. SparkFun KIT-13006

DC-DC Step-Down converter module. It has an input voltage from 15 to 45 V, an output voltage of 15 V and a maximum output current of up to 2.7 A. Pololu 4897

The trigger module is designed for chargers PD 2.0 and PD 3.0. It is equipped with a USB type C input and a USB type A output. It enables powering devices with 15 V or 20 V and testing chargers. PDC005

A module with 8 PC817 optocouplers. Allows you to add galvanic separation in the form of opto-isolation between electrical circuits

Pcam 5C: 5 MP Fixed Focus Color Camera Module with Omnivision OV5640 5 megapixel (MP) color image sensor which includes various internal processing functions, incl. automatic white balance, automatic black level calibration, and controls for adjusting saturation, hue, gamma and sharpness. Digilent 410-358

CS-Mount lens. 8 mm focal length, 50° FoV, manual focus and adjustable aperture. Designed to work with the Raspberry Pi HQ camera. ArduCAM LN039

A set with an analog audio level indicator in the form of a panel meter. Powered with AC or DC voltage from 6 to 12 V. It consists of two VU meters, module and wires

The kit includes a control module (with ETA1617 and NE555) and an ultrasonic transducer. The water atomiser module allows for the construction of, for example, a small humidifier. The module has a connector in accordance with the Grove standard. Seeed studio 101020090

DC motor driver that allows you to control the movement of two drives using the I2C interface. Board without connectors. Pololu 5044

Gravity module designed based on the GP8211 system. It is a single-channel DAC (analog-to-digital) converter with I2C communication that offers an output signal with a resolution of 15-bit and an accuracy of 0.01%. It allows you to generate analog signals with a voltage range from 0 to 10 V or 0 to 5 V. DFRobot DFR1071

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