D0009 Hyundai HCE Deleted...

Mergorun 500mm Horizontal Optical Axis & Flexible Shaft Coupling & 8mm Lead Screw Dual Rail Shaft Support Pillow Block Bearings pack of 15
Mergorun Bearing Pillow Block have a certain bearing capacity, can hold in ordinary precision rack, strong adaptability. || Lead Screw are widely used for machine tools, like 3D printing. || Shaft Optical Axis suitable for kinds of electronic equipment/guide bar, drive shaft, pillar. || This set includes Optical Axis & Lead Screw, Pillow Block Bearing, Linear Rail Support, CNC Stepper Coupler and Ball Bearing.

GeeekPi 4Pcs 8 Digit 7 Segment Module MAX7219 8 Bit Digital Segment Tube LED Display Module with Wirres for Arduino MCU/51/AVR/STM32/Raspberry Pi 4 Model B
GeeekPi MAX7219 is an integrated serial input / output common-cathode display driver, which connects your microprocessor to a 7-segment digital LED display with 8 digits; MAX7219 digital display control module, you can use it for Arduino. || The MAX7219 chipset supports a serial 16-bit register/data buffer which is clocked in on pin DIN every time the clock edge falls, and clocked out on DOUT 16.5 clock cycles later. || The devices include a 150µA low-power shutdown mode, analog and digital brightness control, a scan-limit register that allows the user to display from 1 to 8 digits, and a test mode that forces all LEDs on. || Note:VCC and GND do not reversed, it would burn the chip.51 MCU P0 port requires pull-up resistor, if your device does not have a pull-up resistor can be connected to other ports data lines.