The Step-UpU1V11F3 Buck Voltage Regulator module with output voltage 3.3V, input voltage range of 0.5-5.5V and a maximum output current of 1.2A. Pololu 2561

The Step-Up/Step-DownS10V4F5 Buck Voltage Regulator module with output voltage 5V, input voltage range of 2.5-18V and a maximum output current of 400mA. Pololu 2121

The module is equipped with a button. It communicates via a digital interface and allows you to add simple controls to your M5Stack based project. M5Stack Button Unit

Module with a soil moisture sensor for the M5Stack sets. It has an analog output and a digital output with adjustable reaction threshold. M5Stack U019

Module with an analog MQ8 hydrogen sensor. It is powered with the voltage of 5 V and has an analog output. DFRobot SEN0133

Module with an analog MQ2 gas sensor. It enables the detection of LPG, butane, propane, methane, alcohol, hydrogen and smoke. It is powered with the voltage of 5 V and has an analog output. DFRobot SEN0127

3mm white LED. 1000 pieces in the package

Heart rate monitor module based on the popular MAX30101 and MAX32664. The board is equipped with connectors compliant with the Qwiic standard. SparkFun SEN-15219

Monochrome OLED display with a diagonal of 0.91" and a resolution of 128x32 pixels. The display has a built-in SSD1306 controller, communication via the I2C interface. DFRobot DFR0647

Module with PIR EKMC4607112K motion sensor, power consumption in standby mode up to 170 uA. SparkFun SEN-17372

Module with the PIR EKMB1107112 motion sensor, the standby power consumption of up to 1 uA. SparkFun SEN-17373

Base board for Xbee radio modules belonging to the Series 1, Series 2 and Pro families. Equipped with a voltage regulator, 3.3V to 5V level converters and LEDs for Power, RSSI and DIN / DOUT lines. SparkFun WRL-11373

Module with a digital temperature and humidity sensor based on the SHT31. Communication via the I2C interface. DFRobot SEN0331

Module with an EMG signal detector. The board is equipped with a Grove connector and has an analog output. Seeed Studio 101020058

Module with 16x2 characters LCD display and ATMega328p microcontroller. The user can communicate with the module through one of the serial interfaces: UART, I2C or SPI. SparkFun LCD-16396

ToF laser rangefinder. It enables detection of many objects, has a field of view of about 25° and is able to detect objects at a distance of up to 3 m. Communicating via the I2C interface. SparkFun SPX-17072

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

Module with barcode and QR scanner. It allows you to read one-dimensional and two-dimensional codes using the intelligent image recognition algorithm. It has a built-in USB and UART interface. SparkFun SEN-18088

A small WiFi module designed for IoT applications. It can communicate with the motherboard via the I2C or UART interface. DFRobot TEL126

HMI module with a 2.8" TFT color LCD display with a resolution of 320x240 px. Equipped with a resistive touch panel. Communication via UART interface. Nextion NX3224T028