SEEU. AGAIN 4pcs 8-Digit 7 Segment Module MAX7219 8 Bit Digital Segment Tube LED Display Module Supports Cascade Eight Bit Serial 3 IO Ports for MCU/51/AVR/STM32
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..
The module is compatible of 5V / 3.3V microcontroller.
Only three IO ports are used to drive the eight digit display..
Only three IO ports are used to drive the eight digit display. MAX7219 supports flicker free displays as well as cascading displays.
PCV board four corners of the fixed copper stud, which can effectively precent short circuit accidents happen..
Wiring instructions (a program, for example, you can pick any IO port definition can be modified in the program): VCC to 5V, GND to GND, DIN to P00, CLK to P02, CS to P01.
Digital tube is 0.36 inch 4-bit integrated cathode digital tube.
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..
The PCF8574 IO Expansion Board provides general-purpose remote I O expansion via the two-wire bidirectional I2C-bus (serial clock (SCL), serial data (SDA)..
The main resources: PCF8574, I2C interface, the 8-bit parallel.
Typical applications: for I / O resource constraints the MCU I / O expansion.
PCF8574T expansion board applicable to a variety of platforms including AVR / ARM.
PCF8574T PCF8574 IO expansion board support I2C bus cascade (by pin header row seat docking methods can be used simultaneously multiple I2C modules).
WYPH Ultrasonic Module HC-SR04 Distance Measuring Ranging Sensor for Arduino UNO for Mega R3 Duemilanove Nano Robot Pack of 10pcs
Using IO trigger for at least 10us high level signal.
The module automatically sends eight 40 kHz and detect whether there is a pulse signal back.
If the signal back, through high level ,time of high output IO duration is the time from sending ultrasonic to returning. Test distance = (high level....
Waveshare Metal Box (A) Designed for Official Raspberry Pi Compute Module 4 IO Board Comes with Cooling Fan Mini Computer Chassis Robust and Dust-Proof Nice Looking
Designed For Raspberry Pi Compute Module 4 IO Board.ONLY COMPATIBLE WITH Raspberry Pi OFFICIAL IO BOARD.
Make It Easy To Build Your Own Raspberry Pi CM4 Mini PC.
Each Cut-Out Is Completely Aligned With The Connector.
Comes With Cooling Fan, Combined With The Airflow Vent, Better Heat Dissipation.
Binocular Vision, PoE Powered Raspberry Pi Projects, Or Other Industrial Context.