Researched by Riley Hart · based on ELEGOO Smart Robot Car V4 build guide and docs · we may earn a commission
The servo plug is backwards or the servo arm was turned by hand. Start with this: Check the servo plug is in Servo1 with brown on GND.
The servo plug is backwards or the servo arm was turned by hand.
Plug the servo's 3 wire plug into the port marked Servo1 on the expansion board. Brown wire to GND.
Check: Servo plug in Servo1. Brown wire on GND.
Common mistake: Plugging it in backwards. Check the wire colors match the pin labels.
Open step 15 in the free build tool, tap Stuck and take a photo. The coach checks it against that exact step and tells you what to change. 3 free questions per kit.
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