starting this build now. almost finished sanding the boards.
i realize that this seems like a basic question but could anyone explain to me how i test each board before i solder them? i have the seesaw libraries for neotrellis. i just dont know how to connect to each one so i can upload the “basic” sketch to them one at a time.
do i have to solder the pins the teensy to each board one by one or is there another way to temporarily connect them? i assume i use the teensy and the usb cable to connect to the computer. i got a jstph cable from adafruit but im not sure if im supposed to use that either. the adafruit guide appears to show that there is soldering involved. i just dont get how im supposed to do that to each one. or do i test them as i go by soldering the teensy to the first board that it’s gonna stay soldered to ,then as i attach the boards, test them that way?