Module with RTC and MicroSD socket for D1 Mini

Multifunctional speech recognition module. Allows you to add speech recognition to your own application. The module can be used with any evaluation kit that has a UART interface. Sparkfun COM-15453

Two-way speaker crossover with a division frequency of 2500Hz/3000Hz. Works with 4 to 8 ohm speakers and offers up to 250 watts of power

DC-DC Step-Up converter U3V40F5 with an output voltage of 5 V, an input voltage of 1.3 to 5 V and a maximum output current of 4 A. Pololu 4012

The arduino turbidity sensor detects water quality by measuring level of turbidity. It is able to detect suspended particles in water by measuring the light transmittance and scattering rate which changes with the amount of total suspended solids (TSS) in water. SEN0189

Dual DC motor controller designed for Raspberry Pi, which enables the engine to be supplied with voltage in the 4.5-28V range and power consumption in continuous operation of 2.6A (5A in peak) of two DC motors. Self-assembly set. Pololu 2761

Audio module with DAC, line output and display, designed to work with the Raspberry Pi. Pimoroni PIM483

Expansion module with HDMI interface dedicated to Galatea FPGA development boards. Equipped with an IP4776CZ38 chip. Numato Lab GAHDMI20001

Switch module with an interlock. DFRobot DFR0423

MP3 panel with LCD display for installation in the audio device. It allows you to play files in MP3, WAV and WMA format from USB memory, microSD card, via AUX and Bluetooth 5.0. Has a built-in FM receiver. modBluAudRad

Raspberry Pi Expansion Board, DC Motor / Stepper Motor Driver

16-Channel 12-bit PWM/Servo Driver - I2C interface - PCA9685, RoHS

Great way to upgrade a project that uses a photocell and needs RoHS compliance. Due to the high rejection ratio of infrared radiation, the spectral response of the ambient light sensor is close to that of human eyes. Adafruit 2748

BMS protection circuit designed for 7 Li-Ion cells. It has a charging function with balancer option, a discharging function and an over-discharge protection function. HXYP-C47-MA18-7S

Micro SD card module

A module with a temperature sensor based on the absorption of infrared radiation. Enables non-contact measurement. modTMP006

DC-DC Step-Down Converter Module AP63357 with 5V output voltage, 3.8 to 32V input voltage and 3.5A maximum output current. It has a very small board format, so it can be used in any project. SparkFun COM-21256