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Product description
Ultrasonic Ranging Alarm Soldering Electronics Project DIY Learning Practice Kit With HC-SR04 Distance Sensor Module and Buzzer.
Compose of HC-SR04 ultrasonic sensor, Parameter Input, Digtal tube display and alarm buzzer.
Use the widely used STC89C52 microcontroller as the core control unit which is popular and easy to use.
The circuit structure is also modular and labelled clearly for easy soldering.
Working voltage: DC 4.5-5.5V.
Measurement distance range: 1.96" - 157.5".
Distance (on the Digtal Tube) is shown in Meter.
Package List:
PCB Board X1.
HC-SR04 ultrasonic Ranging sensor X1.
3 Bit Digtal Tube X1.
40P IC Lead Socket X1.
STC89C52 (Programmed) X1.
DC005 Socket X1.
AAA Battery Holder X1.
USB To DC005 Cable X1.
5V Buzzer X1.
5MM Red Led Light X1.
Button X3.
1K Resistor X8.
4.7K Resistor X6.
Diode X3.
9012 Audion X4.
10UF Electrolytic Capacitor X1.
22P Ceramic Capacitor X2.
12M Crystal Oscillator X1.
Self-Locking Push Switch X1.
Jason
Reviewed in Australia on January 14, 2025
A very good, early little sensor. Gave it to someone early in their electronics learning and they loved it. Highly recommend.
S. Steven Smith
Reviewed in the United States on February 17, 2024
When you buy one of these electronic kits that labels itself as a soldering practice kit, you can pretty much kiss the possibility of instructions or info goodbye. It would have been nice to have but it’s pretty well silk screen labeled on the board so it wasn’t hard to figure out. I had to find the positive trace to be sure I was hooking up the electrolytic capacitor correctly but it wasn’t difficult to figure out. I later realized that the way I soldered it in wouldn’t allow for the chip to seat right in its socket, so I unsoldered it and put on the back of the board. It some ways, a kit without instructions or even a picture of the finished product forces you into problem solving mode and you learn more I had to figure out what buttons did what so I labeled them for future reference. The USB cable for power is nice, but they give you a battery holder as an alternative, which is nice, but no holes to solder the leads into. Another thing to figure out, but not a big deal.All in all, it’s a nice kit. Had an extra two resistors and a capacitor, apparently just in case, but was easy to figure out where things went. Nice solid pcb and once constructed, works well to gauge distance in meters using the ultrasonic sensors and the led display showing the distance was a nice feature to add as it helps you to know what it’s sensing. Five stars only due to it having nothing but parts, but that was all that was advertised. Not even a picture was included so I had to go back to the listing to make sure I was putting in one part the right way. Would have been nice, but just know it won’t be included.
Dave
Reviewed in the United States on August 13, 2022
There is a PDF that is difficult to find on the product page, but it is there. It is a guide including parts list and instructions.
Lajas
Reviewed in Mexico on June 19, 2022
me funciona para medir el nivel de agua en la cisterna
Eduardo Nahmad
Reviewed in Mexico on August 13, 2021
Éste es un kit entretenido y bien diseñado. La precisión en la medición de la distancia es ± 1cm, lo cual está muy bien para su precio y su propósito.La construcción es fácil y funciona perfectamente.No se requieren instrucciones para construirlo. Lo único que se requiere para operarlo es saber que presionando SW4 entra en modo de ajuste de la distancia a la que se activa, y que esta distancia se ajusta mediante SW3 y SW2; presionando SW4 de nuevo se sale del modo de ajuste y entra en modo de operación.
SB
Reviewed in the United States on February 14, 2021
This was a fun little practise project! This was my first attempt at soldering since electronics classes in high school two decades ago, and everything went smoothly.The good:* the PCB silkscreen markings are legible and tell you where each piece goes.* Came with a couple of spare components; one of each type of resistor and two spare ceramic capacitors. I didn’t need them however it’s always nice to have spares in case something does go wrong during assembly.The not as good:* There are no step by step instructions available, you have to just put the components in the place based on photographs. There is some documentation available from the link on the product page here on Amazon which I would recommend viewing. It’s not step by step, but it does provide some information about the polarity of some of the components. It wasn’t too difficult to figure out how to put it together just from the pictures, but do bear this in mind in advance.* I still am not entirely sure where the battery holder would connect to the device; I didn’t connect it because the 5V DC jack works well. If you are planning on buying this to actually use as a portable range finder you might need to do more research to find out where to connect the battery.* It’s not a high precision range finder by any means so don’t buy it thinking you can use it to measure rooms or something like that. It’s perfectly accurate for things like a parking distance alarm in your garage, though.* Inserting the microprocessor into the socket is terrifying because there’s no instruction and the pins need to be squeezed in a bit to fit into the socket. In the end it went in fine for me, but it was the only time during the project where I was genuinely concerned I would irreparably break something.I would recommend this. It was a fun and simple project.
Hugo Perozo
Reviewed in the United States on February 11, 2021
A++ Recommended - Excellent product and quality PCB and very fun to put together. Works really well. Excellent for electronics enthusiasts. Although I have different uses for this, I end up using it to guard my beer and Scotch from intruders! It is a lot of fun. The delivery was very fast. This projects assumes is better for people who understand the basics about electronic components, their positioning into the PCB board including knowing the right polarity, as well as knowing how to solder. All in all, great item for electronic enthusiasts.
Customer
Reviewed in the United States on November 3, 2020
This is an excellent quality item for soldering practice, as well as fun project with countless uses. It displays from 50 millimeters to 4 meters in metric. That's about 2 inches to 13 feet. If you plan to use it for social distancing, which works fine, be warned that nice soft fuzzy clothes will asorb rather than reflect the signal. Six feet is roughly 2 meters (1.8288). It is excellent for sensing a vehicle backing up in a garage, or a vehicle in the driveway.INSTRUCTIONSS4 press and hold to enter programming mode.S3 range increases S2 range decreasesS4 to exit programming mode.MODIFICATIONS: To be able to operate this device from either batteries or a 5v DC wall wart, the battery holder wires can be spliced to a salvaged cord/plug from a wall wart. To allow the sensor to be moved around independent of the circuit board, a header can be added, and the sensor connected via a ribbon cable or wires. I added a socket for the display to raise it up higher to use a custom built case. I also added a header (socket) for the buzzer which provides an option to connect a relay to operate a device such as a warning light.CAUTION! Be careful, the parts under the IC need to lay flat to allow the IC chip to seat. The power button can go in two ways, but only one is right (see PDF). Some components like the 10uf capacitor, led, and buzzer are polarity sensitive. Overall, it's a great product for learning to solder. It is entertaining, practical and fun to use. It's well designed, carefully packaged, with a high quality circuit board and components. It included a few extra parts, which was thoughtful. I only wish it had four mounting holes rather than two. Download and study the PDF before starting. Don't forget to take the coverings off the buzzer and the 7 segment display! If you are new to soldering and components, expect to spend a day or so putting it together. If you are skilled, you can build it in less than an hour. It's useful and well worth the investment in time an money.
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