
The Multi-function Expansion Board enhances connectivity and power for development boards, supporting motors, servos, and various I/O ports with integrated power.
Power Management · Power
Verify supply voltage and logic levels before powering up.
9 VDC 1000mA regulated switching power adapter - UL listed visual preview
Adafruit PowerBoost 1000 Basic - 5V USB Boost @ 1000mA from 1.8V+ visual preview
MicroUSB Plug to 5.5/2.1mm DC Barrel Jack Adapter | Kiwi Electronics visual preview
DC-DC Automatic Step Up-down Power Module (3~15V to 5V 600mA) visual previewCompare wall adapters, buck regulators, buck-boost boards, USB-C PD barrel adapters and passive cables before treating them as interchangeable power supplies.
Power · Power supplies & regulators · 23 parts
9V Alkaline Battery visual preview
9V Battery Holder visual preview
9V Battery Snap visual preview
9V to Barrel Jack Adapter visual previewChoose batteries, holders, adapters and boost boards without mixing voltage class, chemistry, connector polarity, charging method or current delivery.
Power · Batteries · 20 parts
RGB backlight positive LCD 16x2 visual preview
SparkFun 16x2 SerLCD - RGB Backlight (Qwiic) visual preview
I2C 20x4 Arduino LCD Display Module visual preview
Gravity: I2C 16x2 Arduino LCD with RGB Backlight Display V2.0 visual previewCharacter LCDs, SPI TFTs, e-paper modules and larger capacitive-touch TFT panels solve different display jobs. Treat display class, interface, controller, resolution, touch, refresh behaviour, storage, voltage and mounting as separate swap checks.
Displays · TFT & LCD displays · 33 parts
MQ-2 Gas Sensor visual preview
MQ-3 Gas Sensor visual preview
MQ-135 Gas Sensor visual preview
Grove - Air quality sensor visual previewChoose between MQ gas sensors, VOC/eCO2 indoor-air sensors, true CO2 modules and particulate sensors without treating every air-quality breakout as the same detector.
Sensors · Gas & air-quality sensors · 29 parts