🕰️ Enhanced DAOKI C51 DIY Kit: 4 Bits Digital LED Electronic Clock Production Suite with Improved SEO Review

Very cheaply made - the package is great if you can read the schematics and build it on something else like a breadboard or something but the PCB is very cheap and the pads will fall off when you try to solder them - generally I'm just not happy with the quality of the PCB you get from these cheap robots - you might think a soldering iron could be used in a soldering practice project, but if the PCB at temperatures above 250° pads fall off - solder melts at 360°, which makes this task almost…

Very easy to assemble for anyone with even minimal soldering skills. My only criticism of the (optional) backup battery connection is that the screen printing swapped the GND and + connections. Fortunately, the electronics are protected by a diode, so an accidental change of direction will not damage the device. The instructions are in Chinese only, but it only took a few minutes to figure out the controls. It should also be noted (and probably described in the Chinese instructions) that the…

It was packaged in a small plastic bag with assembly instructions on one sheet (butt joined) for assembly in Cantonese (I think!). Electronic shifting proved most useful in final assembly. All components were in good condition and well marked; makes assembly relatively easy. What I didn't realize is that the board requires two (2) independent DC power supplies, namely 5VDC and 3VDC. Soldering was very careful when working with the IC holder and dual inline package (DIP) as both were close to…

It's not bad, but there is a "problem" in the design and a problem with the 3VDC backup power input. To do this I cut the USB cable for the power supply and the section of wire is too small to hook onto the screw terminals. I know it's a bit finicky and soldering them directly to the board is NBD, but be prepared. For me the big problem is that I added a holder for two AAA batteries for long term backup, but without power the clock loses its settings, with or without this backup. Haven't fixed…

Overall a good and quick kit. The parts appear to be of good quality and the watch works as described. However, two things lower my rating: 1. The instructions included with the kit are basically useless. They are translated from Chinese and are mostly gibberish. However, as they say, if you just follow the schematic and refer to the PCB yourself, things will be pretty easy. Remember that diodes, electrolytic capacitors, power jumpers, IC and transistor must have the correct orientation to work

The DAOKI LED electronic watch soldering project is a mixed package. There are many things to like about him, but also some things that disappoint him a little. I start with the good and move on to the bad. First, the board is of good quality. With other kits I've built I've had problems with solder and traces that would rise when soldering or desoldering components. I haven't had that problem here and it's definitely worth a look. The board is also well laid out and labeled. It's a small board