2 pcs HC-SR04P/SR04 Ultrasonic Sensor ranging display module 5V test board display range finder LED Display Module with DuPont Cable for Arduino Robot

The unit is as shown on Amazon when it arrived. The only issue for me is these boards never come with or sell the DC connection cables ,so why fit a socket! The LEDs are clear and work well, the update rate is maybe a little slow at about 1 second. It seems to be accurate for short <0.5m distances. The Ultrasonic module I used works up to about 2m on a Raspberry Pico. The serial output is 9600 baud I show the output on one of the pictures. Below is some code for a Raspberry pi pico to read the port:=======================================================================from machine import UART, Pinimport time# Define UART pinsTX_PIN = Pin(0) # GPIO 0 for TXRX_PIN = Pin(1) # GPIO 1 for RX# Set the baud rate (change this value as needed: 9600, 19200, etc., up to 192000)BAUD_RATE = 9600# Initialize UARTuart = UART(0, baudrate=BAUD_RATE, tx=TX_PIN, rx=RX_PIN)print(f"Serial port initialized on UART1 with baud rate {BAUD_RATE}")print("Waiting for data...\n")while True:if uart.any(): # Check if data is available on the UARTdata = uart.read() # Read the incoming dataif data:print(f"Received: {data.decode('utf-8').strip()}") # Display datatime.sleep(0.1) # Small delay to avoid excessive CPU usage============================================================Alan G8UJS