DIY Ultrasonic Ranging Alarm Kit Ultrasonic Distance Measurer Soldering Practice

Product description
1. Ultrasonic Ranging Alarm Soldering Electronics Project DIY Learning Practice Kit With HC-SR04 Distance Sensor Module and Buzzer.
2. Compose of HC-SR04 ultrasonic sensor, Parameter Input, Digtal tube display and alarm buzzer.
3. Use the widely used STC89C52 microcontroller as the core control unit which is popular and easy to use.
4. The circuit structure is also modular and labelled clearly for easy soldering.Specification
Working voltage: DC 4.5-5.5V.
Measurement distance range: 1.96\" - 157.5\".
Distance (on the Digtal Tube) is shown in Meter.Component name quantity
PCB board *1
HC-SR04 Ultrasonic Ranging Module *1
0.56-inch 3-digit common anode digital tube *1
40P IC socket *1
STC89C52(Burned Program) *1
DC005 seat *1
USB to DC005 power supply cable *1
No. 7, 3 battery boxes *1
5V active buzzer *1
5MM red LED*1
8*8 self-locking switch *1
8*8 self-locking switch cap *1
6*6*12 keys *3
1K resistor *9
4.7K resistor *7
9012 transistor *4
22P ceramic capacitor *3
12M crystal oscillator *1
10UF electrolytic capacitor *1

On May 7, 2025 at 23:26:25 PDT, seller added the following information:

On Aug 30, 2026 at 20:16:05 PDT, seller added the following information: