DC motor driver that allows you to control the movement of two drives using the I2C interface. Board with soldered connectors. Pololu 5054

The managed industrial Ethernet switch provides eight Gigabit Ethernet ports and two SFP ports for fibre connectivity. Layer 2 management, additional Layer 3 functions, and support for PROFINET, EtherNet/IP, and MRP enable deployment in industrial automation and managed Ethernet networks. Teltonika TSW212

DC motor driver that allows you to control the movement of two drives using the I2C interface. Board with connectors for assembly. Pololu 5055

3-V to 5.5-V Multichannel RS-232 Line Driver / Receiver, SOIC16, Texas Instruments, RoHS

DC motor driver that allows you to control the movement of two drives using the I2C interface. Board without connectors. Pololu 5056

DC motor driver that allows you to control the movement of two drives using the I2C interface. Board with soldered connectors. Pololu 5057

DC motor driver that allows you to control the movement of two drives using the I2C interface. Board with connectors for assembly. Pololu 5058

Load cell amplifier module with a 24-bit HX711 ADC and an ATtiny404 microcontroller providing measurement data over I2C/Qwiic. It supports Wheatstone bridge load cells, two differential input channels, and selectable I2C addresses from 0x30 to 0x37. The supply voltage range is 2.6–5.5V. Soldered 333006

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

GPIO expander based on the MCP23017 IC, adding 16 configurable digital input/output lines to a microcontroller via I2C. Each line can operate as an input, output, or input with an internal pull-up resistor, while INT A and INT B provide interrupt outputs. The board features two Qwiic connectors and measures 38 × 22mm. Soldered 333007

Adapter designed for connecting conventional I2C modules to the Qwiic bus. It provides 2 Qwiic connectors and through-hole connections for SCL, SDA, 3.3 V, and GND, allowing modules without a native Qwiic connector to be integrated into a Qwiic system. Soldered 333015

Four-channel logic level converter designed for connecting digital devices operating at different signal voltages. It uses the TXS0104 IC and supports bidirectional level conversion for I2C bus signals. Soldered 333016

Four-channel logic level converter based on the TXB0104 IC, designed for connecting digital circuits operating at different logic voltages. It supports automatic direction sensing, bidirectional communication, and digital interfaces such as SPI and UART. Soldered 333017

DC motor driver that allows you to control the movement of two drives using the I2C interface. Board without connectors. Pololu 5059

DC motor driver that allows you to control the movement of two drives using the I2C interface. Board with connectors for self-assembly. Pololu 5046

DC motor driver that allows you to control the movement of two drives using the I2C interface. Board with soldered connectors. Pololu 5045

Two-channel relay module designed for independent control of two AC or DC loads using a microcontroller. Each of the two relays supports loads of up to 10 A at 250 V AC or 10 A at 30 V DC, while the control circuit is compatible with 3.3 V and 5 V logic levels. Soldered 333023

Single-channel relay module designed for controlling AC and DC loads using a microcontroller. It supports loads of up to 10 A at 250 V AC or 10 A at 30 V DC and can be controlled using 3.3 V and 5 V logic signals. Soldered 333024

Capacitive soil moisture sensor with an analog voltage output and a 3.3V–5.5V supply range. The coated sensing electrode reduces corrosion compared with resistive probes, while the AOUT voltage increases with soil moisture. Designed for plant monitoring and automatic watering systems. Soldered 333098

DC motor driver that allows you to control the movement of two drives using the I2C interface. Board with connectors for self-assembly. Pololu 5037