Ultrasonic distance sensor (sonar) with a measuring range from 50 cm to 5 m. It allows you to read data via an industrial analog interface with a current output of 4-20 mA. DFRobot SEN0267

Ultrasonic distance sensor (sonar) with a measuring range from 30 cm to 500 cm. It allows to read data through one of three interfaces: variable width pulse, analog output or RS232/TTL interface. DFRobot SEN0269

Tone control and surround digitally controlled audio processor, SO28, RoHS

ARM Cortex-M3 CPU, 128kB Flash, 32kB RAM, USB OTG FS, 2xCAN, 5xUART, 2xI2C, 2xSPI, ADC, DAC, STM, LQFP64, RoHS

Precise Hall effect sensor that converts magnetic field intensity into analog voltage. Differential response to magnetic poles (voltage increases when approaching S pole and decreases at N pole) enables precise analysis of field direction and strength. High sensitivity, low noise and compatibility with platforms such as Arduino and micro:bit make the sensor ideal for industrial, educational and hobby applications. DFRobot DFR1132

Ultrasonic distance sensor (sonar) with a measuring range from 15 cm to 645 cm. It allows you to read data through one of three interfaces: variable-width pulse, analog output or RS232 interface. DFRobot SEN0275

The Gravity Occupancy Sensor uses 24 GHz FMCW radar technology, enabling precise presence detection at a distance of up to 8 meters and movement and distance measurement up to 12 meters. Thanks to its high resistance to environmental interference, it works reliably regardless of light, temperature or dust, effectively detecting both static and dynamic objects. Compatibility with Arduino, ESP32, Raspberry Pi and a simple Gravity interface make it an ideal solution for intelligent lighting, building automation and security systems. DFRobot SEN0610

A module with a distance and gesture sensor that allows the detection of objects in two axes (x and z) and the detection of simple gestures. It communicates via the I2C or UART interface. SparkFun SEN-13162

Angular contact strip in black, double-breasted, female, 2x40, pitch 2.54mm, THT, RoHS. PBD80R

BLE Beacon, which emits Bluetooth Low Energy signals, enabling discovery by Bluetooth devices such as smartphones or ESP32 without the need for pairing. With a built-in I2C interface and an 11-bit ADC, it allows data collection from various sensors, and its low power consumption (650nA in sleep mode) ensures long-lasting operation on a single battery, ideal for applications requiring mobility and long range. DFRobot TEL0168

ARM Cortex-M3 CPU, 256kB Flash, 64kB RAM, USB OTG FS, 2xCAN, 5xUART, 2xI2C, 2xSPI, ADC, DAC, STM, LQFP64, RoHS

Module with a Coulomb counter based on the LTC4150 system. It allows you to measure the flow of electric charge in the device. SparkFun BOB-12052

Waveshare 2.15" (B) e-paper display in the version without a controller module enables energy-efficient and readable content presentation in three colors. With SPI interface and compatibility with platforms such as Raspberry Pi, Arduino, STM32, or Jetson Nano, it is a flexible solution for visual labeling and automation projects.

2-pin ARK mounting strip, 5.08 mm pitch. 127-5.08-02P-14-1000A(H)

Ultrasonic obstacle sensor (vehicles) with high resolution and range up to 500cm with USB interface. It allows you to perform measurements at 4Hz. DFRobot SEN0268