Gikfun 6 Bits Digital LED Electronic Clock DIY Kits PCB Soldering Practice Learning Board AT89C2051 FR-4 for Arduino EK1323

This is a fun and easy build, some of the parts were faulty, but, that goes with any electronics kit. I did have to replace all 4 LEDs due to accidentally having my soldering iron to hot. The only problem is this thing is a power hog. (I have used up at least four 9V batteries running this thing)

I am fairly new to soldering and this was my first kit. This kit does not come with instructions on how to solder nor are the assembly instructions particularly easy to read. I was fortunate to have someone with me who was experienced with soldering, as well as a YouTube video I found after putting the serial number of the circuit in the YouTube search bar. Once you see the circuit in the video, and get an understanding of basic circuitry, this kit was a fun little introduction to soldering and, even with my minimal skills, was not to difficult to complete. I would recommend this as a beginner, it’s a fun and somewhat easy build, but YouTube tutorials are a must if you’re new.

A beautiful well put together kit. Easy assembly great soldering practice. All parts were there and instructions were adiquite.

I purchased this kit for the 4021BH 7 segment dual digit displays to replace burned out displays on a fridge. These are nearly impossible to find with the correct pinout unless you buy 100 from Alibaba... The kit came with 4021BS displays, which are the "super" red versions (brighter than the 'BH). The pinout matched, and they look great in their new home. I also have a bunch of other spare components left over as well for future projects, which is a bargain for the price, considering 2 of the display modules would have been ten bucks by themselves, minimum.

This has been a fun project for my grandson and I.

Useful kit to learn soldering. Once created, the clock is useful, but not over time. It worked for less than 24 hours without needing to replace the batteries, but I don't believe that was the our use case. I got it to help learn soldering, and it did the trick! Instructions were a little difficult to follow.

IC came with a broken pin, essentially making this useless. It was an ok project. I understand Gikfun doesn't have the best quality control, but it would have been nice to be able to have a working product.

Nice solder practice project. Some that actually has a function once finished. One drawback is that it eats batteries. May want consider powering this clock with a plug in power source.

Great kit and good practice for through hole soldering. Instructions are clear and easy to follow. Final assembled clock isn't very user friendly, but works well and validates the soldering.

Went together with ease best instructions of any project yet only issue is I didn’t read the description correctly and don’t have an arduino to use it with so I can’t test it out but now I have a good reason for getting one and expanding my horizons to see what I can do with my soldering skills and a little bit of effort learning how to code

Soldered this Digital LED clock together with no problems. Instructions were good for assembly. The PCB was of good quality along with the components. After assembling tried a 9 volt battery on the clock. The clock lit up with no problems, but the battery only lasted about 18 hours, Suggest using a USB power source or something with more capacity (amp hours) than a 9 volt battery.

This clock project was fun. I had to research the colour codes for the various resistors. I enjoyed soldering the components into their positions on the board. It was good practice. It made a useful 24 hour GMT clock for my Ham Radio station. Pleased with the outcome.

Took an evening to assemble and soldier. Almost everything worked. There was some let's that didn't light up. I'm guessing we put in a piece wrong. No matter, it's one of my son's favorite things because we did it together. Great to make memories!