1 00:00:04,680 --> 00:00:11,540 Put a little solder on the top right pad 2 00:00:12,420 --> 00:00:18,760 The MCU has a round mark, make sure it is at the bottom left corner 3 00:00:20,620 --> 00:00:27,300 Carefully align the pins of the MCU with the pads on the PCB 4 00:00:28,220 --> 00:00:32,640 Melt the solder and fix the MCU in place 5 00:00:34,240 --> 00:00:39,120 It should now look like this. Make sure the MCU has the correct alignment 6 00:00:39,540 --> 00:00:43,840 Now put the solder on the bottom row of the MCU 7 00:00:44,340 --> 00:00:49,460 Add solder on all four sides of the MCU. It's OK if the pins are connected 8 00:00:50,240 --> 00:00:55,300 ..now the top row 9 00:00:56,760 --> 00:00:59,060 ..the left row 10 00:00:59,500 --> 00:01:04,060 and finally the right row 11 00:01:04,580 --> 00:01:07,920 Look at that mess you just made! :) 12 00:01:11,020 --> 00:01:13,660 Don't worry! Grab your desolder braid 13 00:01:14,000 --> 00:01:18,840 Put the desolder braid flat on the bottom row 14 00:01:19,420 --> 00:01:23,580 Apply some heat with your soldering iron and let the desolder braid soak in the solder 15 00:01:23,740 --> 00:01:28,880 Remove the desolder braid while it is still hot! Do NOT try to pull it off with force!! Just apply more heat if needed 16 00:01:29,320 --> 00:01:33,400 Cut off the used desolder braid 17 00:01:33,400 --> 00:01:39,820 Repeat what you just did on the next row 18 00:01:43,440 --> 00:01:48,000 Cut away.. Repeat the whole procedure on all four sides 19 00:02:05,480 --> 00:02:11,780 Clean the pins from solder leftovers by moving the soldering iron as shown 20 00:02:11,780 --> 00:02:15,020 You might want to clean the contacts now (optional) 21 00:02:15,020 --> 00:02:17,760 An old toothbrush and some contact cleaning solution will do 22 00:02:18,020 --> 00:02:22,080 Look at that! Super nice! 23 00:02:22,600 --> 00:02:25,660 Add some solder to the top right pad for the EEPROM 24 00:02:26,040 --> 00:02:32,620 Beware: the EEPROM also has a small mark. Align it correctly 25 00:02:34,980 --> 00:02:41,780 Melt the solder Place the EEPROM 26 00:02:41,780 --> 00:02:44,300 Solder the pins on the left side now 27 00:02:45,120 --> 00:02:47,840 One at a time should work for this part 28 00:02:48,280 --> 00:02:52,920 If you make a mess, just use the desolder braid like you did with the MCU 29 00:03:09,520 --> 00:03:13,580 Looks good? 30 00:03:15,180 --> 00:03:20,900 For the resistors always add solder to the first pad, place the part and solder the second pad 31 00:03:23,740 --> 00:03:27,820 Make sure to place the resistors on the right positions on the PCB 32 00:03:29,860 --> 00:03:33,800 Resistors have no polarity so orientation does not matter 33 00:03:35,680 --> 00:03:57,360 Just add one after the other and solder both contacts 34 00:04:03,320 --> 00:04:10,040 The capacitors we use in this design have no polarity. Just make sure to put them in the right place 35 00:04:11,380 --> 00:04:18,580 Attach them like the resistors.. First one pad, than the other. You'll know the drill by now. 36 00:04:45,160 --> 00:04:49,620 DIODES! CAREFUL: Those have a polarity. 37 00:04:50,100 --> 00:04:52,340 Add solder to the right pads first 38 00:04:52,860 --> 00:05:06,260 The Diodes have a white mark it has to point to the RIGHT 39 00:05:15,440 --> 00:05:18,480 It should look like this. Double check it now. 40 00:05:23,680 --> 00:05:28,480 Add some solder to the batteryholders pad. Not too much, not too little. 41 00:05:31,040 --> 00:05:34,920 The batteryholder should be placed with it's opening towards the top of the rocket as shown 42 00:05:35,360 --> 00:05:38,300 Turn over the PCB and solder the four contacts of the batteryholder 43 00:05:40,440 --> 00:05:47,980 Make sure the batteryholder is placed flat on the PCB 44 00:05:51,320 --> 00:05:54,360 Looks like this? Good Job! 45 00:05:55,320 --> 00:06:02,960 Now insert the two buttons They should snap right in 46 00:06:05,240 --> 00:06:12,080 Solder the buttons contacts 47 00:06:27,400 --> 00:06:29,880 Are they sitting nice and flat? Good. 48 00:06:31,280 --> 00:06:34,040 Place the audiojack between the buttons 49 00:06:34,520 --> 00:06:38,560 Make sure it sits flat as well 50 00:06:39,560 --> 00:06:44,040 Solder the contacts 51 00:06:55,420 --> 00:07:01,980 Shiny connector is shiny 52 00:07:04,140 --> 00:07:08,260 The matrix has a mark. It will read 1088BS or something similar 53 00:07:08,660 --> 00:07:11,480 The mark MUST be on the right side where PIN1 is labeled on the PCB. 54 00:07:11,780 --> 00:07:15,980 This is IMPORTANT. Don't screw this up. 55 00:07:17,440 --> 00:07:23,300 Now.. Solder the pins. 56 00:07:23,440 --> 00:07:24,400 That was fast! 57 00:07:25,960 --> 00:07:30,440 Cut off the excess material from the pins. 58 00:07:31,200 --> 00:07:36,580 I forgot to speed up that part .. :( 59 00:07:41,000 --> 00:07:42,860 Booooooring 60 00:07:46,580 --> 00:07:50,040 Yes! Finally! 61 00:07:50,740 --> 00:07:53,060 Insert the battery 62 00:07:53,780 --> 00:07:56,760 + is on the batterholder - on the PCB 63 00:07:57,240 --> 00:07:59,580 WAHAHAAHAHAHAAAAAA!!!!! You did it! 64 00:08:00,840 --> 00:08:04,840 Congratulations! You just learned how to solder SMD by hand 65 00:08:07,220 --> 00:08:11,880 It was not that hard. Was it? :)