indie Semiconductor (INDI) S-4/A Registration of securities issued in business combination transactions (amended)

Exhibit 23.1

CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We have issued our report dated February 23, 2021 (except for the effect of the restatement disclosed in Notes 10 and 11, as to which the date is May 3, 2021), with respect to the financial statements of Thunder Bridge Acquisition II, Ltd. contained in this Registration Statement. We consent to the use of the aforementioned report in this Registration Statement, and to the use of our name as it appears under the caption “Experts.”

/s/ GRANT THORNTON LLP

Philadelphia, Pennsylvania

May 3, 2021