www.electrosmash.com/pedalshield-uno
Step 3 – Medium Size Components.
The last components to be placed are the dip sockets, resistor trimmer, and led:
tips:
Take care with the LED D1 soldering: present the plastic cover to size the length of the leads. The short
lead (cathode) it is marked with a “K” on the PCB and goes to the flat side of the diode mark.