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Paul_McNamee 21/12/2018
Building this smart car is doable but take your time. There are three surface mount IC and two surface mount caps that need to be soldered. The pitch of the ICs is small so without a very fine tip soldering iron, they are a challenge. With a good optical microscope and a fine soldering tip, no problem. Best piece if advice in regards to soldering would be to use flux and a good flux cleaner. The solderability of the components is not great so flux helps immensely. Be careful with the polarity of the LEDs. The minimal instructions present a challenge of their own. Again, take your time, look at the on-line photos and you can be successful with this build. The motors supplied with the kit did not have mounting holes for the screws which are supposed to mount the motors to the printed circuit board. I haven't solved that problem yet. Hopefully this is something BG can correct. I'm a professional electrical engineer so I've enjoyed the challenge up to this point. However, this would have frustrated my 13 year old son who is very proficient with soldering and electrical circuits and who has built several other kits with ease. The instructions are poor. Aside from some quality issues, this can be a fun project but certainly much more challenging than others. The instructions are poor. Note: the battery is unique. I used a Lithium Ion battery recovered from a broken Sonicare toothbrush. This kit could probably be modified to use a different source of power.
D2-6 DIY 51 MCU Smart Car Kit bluetooth Remote Control Gravity Sensing Tracing Obstacle Avoidance
US$13.42
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