This is USB controlled relay opto-isolated board with 16 SPDT relays. You can use it for simple ON/OFF switching electrical devices - home lights, DC motors, solenoids and others. It can help you building projects like robotics and home automation.
This is a 240x128 liquid crystal matrix dot display that support English characters and even graphics, very suitable for interactive work with Arduino.
This build surface is designed for 3D printer heated bed, which is for better adhesion during printing and makes the prints smooth.
This brand new robotic arm is equipped with 3PCS NEMA 17 stepper motors. It moves and rotates much more smoothly than many other robotic arms in the market.
This is Sainsmart 4.3 inch TFT LCD module,It is 100% compatible with the normal MCU like ARM AVR PIC and 8051,especially on arduino family such as arduino due and arduino mega2560(R3).The module uses the LCD controller Chip SSD1963 with 4.3 inch LCD including the touchscreen.
This Aluminum Alloy Protective case is a wonderful case for Raspberry Pi 2 Model B/B+ and Raspberry Pi 3 Model B.
ST-DM542 is a cost effective, high performance CNC two phase stepper motor driver. Using the bipolar constant current PWM current control mode that make the motor runs smoothly and quietly. The maximum output of 4.2A drive current is suitable for NEMA17 and NEMA23 stepper motor which height is less than 112mm.