pedalled / peddled are similar-sounding terms with different meanings (referred to as homophones). To better understand the differences, see below for definitions, pronunciation guides, and example sentences using each term. 👇
pedalled: (verb) operate the pedals on a keyboard instrument.
peddled: (verb) sell or offer for sale from place to place.
pedalled: p·EH·d·ah·l·d
peddled: p·EH·d·ah·l·d
(Examples are Wikipedia snippets under the CC ShareAlike 3.0 license. Definitions drawn from WordNet.)