Solder LEDs (optional) Īdd LEDs through the switch. Then, place it on top of the PCB and make sure all the switches are seated firmly into the PCB. It doesn't hurt to add Kapton tape to the encoder legs as well. Alternatively, you can add Kapton tape to any that are raised. Any exposed metal/solder can cause a short if it touches the switch plate, so before you add the switches to the plate and solder them to the PCB, it's advised that you double check that all solder joints on the top of the PCB are cut flush. When using Choc low-profile switches, there is very little clearance between the switch plate and the top of the PCB. (Optional) Remove plastic from header pins Solder Rotary Encoders The benefit of doing this method is that the Pro Micro Micro-USB port will be flush against the PCB, which helps from getting it ripped off. Then remove the plastic on the header pins by prying it off. Flip the header pins upside down and solder them in. (Optional) An alternative method for soldering in the header pins is shown above. You can go with not soldering the header pins in, but it is recommended to do so anyway for a more secure fit and leaving it unsoldered is a bit more unreliable. Due to the stagger of the header pin holes, they should be able to stand up on their own once inserted. Once the first leg is aligned correctly, solder the other three legs of the reset switch. Solder the reset button Īdd a bit of solder to one pad of the reset switch location on the PCB.Īdd the reset button to the bottom side of the PCB and solder the first leg. Now that the MOSFET is soldered on straight, solder the other two legs. Using a pair of tweezers to hold the MOSFET, solder one leg of the MOSFET first, and make sure it is aligned properly before proceeding. Solder the resistor's leads on the same side the resistor is on and then trim the leads flush with the PCB on the other side.Īdd a bit of solder to one leg of the MOSFET pad Q1. Note: The resistor 'R1' can interfere with the placement of the switches on the other side if the leads poke through the PCB. Resistors don't have polarity, so orientation doesn't matter. Insert all of the resistors into the PCB and solder them in. Solder Components Solder resistors (optional) Solder RGB underglow LEDs or strip (optional).Here's a build video someone has created: Up to 3 EC11 or EC12 Rotary Encoders (optional).7-9 MX-compatible, Alps-compatible, or Choc switches. WS2812B RGB LED strip or 4 loose WS2812B RGB LEDs (optional, for underglow).1 AO3416 MOSFET (optional, for LED control).10 470Ω resistors (optional, for LED backlight).1 BDN9 PCB & Bottom PCB Plate with M2 screws and standoffs.Here's a list of parts needed for the build:
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