Ultrasonic Ranging Alarm Learn to Solder Electronics Kit for Soldering Practicing DIY Kit with HC-SR04 Ultrasonic Sensor Module

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.

The media could not be loaded. This AONTOKY Ultrasonic Ranging alarm soldering kit is the best made soldiering kit I have ever ordered. I did add some features to this kit to make a great soldering kit even better. First I added wires to the board to extend the buttons, the readout and the sensor, and the buzzer and I added 2 LED lights. I put everything in a project box to make it look good. All the components that didn't need to be extended were soldered to the board. If you look at the photo of the board, you will see what it looks like after I soldered all the wires to it, so I could extend the components I needed to. I also added a photo of what everything looked like once completed before I put the back cover on. If you watch the video I made, you will see how well it works, and the added features I added to this kit. I wanted to review this product, so people could see one of the many things that could be done with this kit. This is a fantastic kit, and I had so much fun building my own DIY AONTOKY Ultrasonic Ranging ghost detector. I will be buying more of these kits, so I can build more of them to give to my ghost hunting friends. I recommend you buy this soldering kit, and use your own imagination to see what you come up with for a build. Have fun building your own DIY AONTOKY Ultrasonic Ranging ghost detector, and happy ghost hunting.

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.

This kit is great except for the instructions, which there are none. Download the PDF file and start. Why don’t the Chinese hire someone for minimal wage to rewrite instructions so an English speaking person can understand? When you get to wiring the battery case - positive to the post connection addressing the board ( I think it’s the farthest from the edge)and to either post to the negative. Good Luck!