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Hello friends, it's me again, Thom the watchmaker. I am a professional solder, SMD components are no problem for me. Here are some pictures of my finished soldered watch. Front and back. Please see for yourself - the clock is very clean and soldered without any short circuits. Checked all connections according to the schematic. Nevertheless my watch does not work. After switching it on, not a single LED lights up. The clock is dead, nothing works. The STC-Cip gets very hot. Unfortunately I can't give the seller a positive evaluation, because the watch doesn't work. Pure waste of money and work. I ask the seller to completely rework his product and offer the watch with a better instruction manual with pictures. If the watch works afterwards, I will buy it again, not before! I like the clock, if it works. I expect the seller's guaranteed refund of the purchase price. Best regards Thom
Hi, This is second kit, firs one microconroler STC wrongly soldered, this one finally works!! Some tips: - to open instruction: right click on link, then Save Link As, then open downloded file with WINRAR - solder microcontroler STC like in picture attached, with STC sign rotated right by 90 degrees - vibration switch was very sensitive, I was not able to setup clock due to continouos resetting of clock. To solve I strap-it vibration switch. - Capacitors code: C1-C2, BC1-BC2 20pf SMD white color, C4 and C1-1 100nf SMD brown color - In schematics provided R12-R18 values are wrong 510 instead of 8R2