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Step 5Solder electronics
These components are beyond tiny. That's what makes them so cool! But you are going to be a soldering ninja after this so hang in there!
The LED is probably the most difficult to solder. It is quite handy to stick it to some double sided tape before you begin. You want to have more than one handy just in case. They're invisible if you drop them!
I have marked Pin 1 on the back of my chip with a white dot. You can also tell by the printing on the back and dot on the front. You may need to cut the soldering leads on the battery and the switch to fit. I recommend you wait until everything is soldered before trimming though. Solder everything per the schematic and glue down the chip & switch.
The LED is probably the most difficult to solder. It is quite handy to stick it to some double sided tape before you begin. You want to have more than one handy just in case. They're invisible if you drop them!
I have marked Pin 1 on the back of my chip with a white dot. You can also tell by the printing on the back and dot on the front. You may need to cut the soldering leads on the battery and the switch to fit. I recommend you wait until everything is soldered before trimming though. Solder everything per the schematic and glue down the chip & switch.
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