arduino · umbynos · Apr 28, 2022 · Apr 26, 2022 · Apr 27, 2022 · Apr 27, 2022
diff --git a/.github/workflows/check-certificates.yml b/.github/workflows/check-certificates.yml
diff --git a/certs/AddTrustExternalCA_Root.cer b/certs/AddTrustExternalCA_Root.cer
diff --git a/certs/BaltimoreCyberTrust_Root.cer b/certs/BaltimoreCyberTrust_Root.cer
diff --git a/certs/Digicert_Root.cer b/certs/Digicert_Root.cer
diff --git a/certs/GeoTrustGlobalCA_Root.cer b/certs/GeoTrustGlobalCA_Root.cer
diff --git a/certs/GeoTrustPrimaryCertificationAuthority-G3.cer b/certs/GeoTrustPrimaryCertificationAuthority-G3.cer
diff --git a/certs/GoDaddyRootCertificateAuthority-G2.cer b/certs/GoDaddyRootCertificateAuthority-G2.cer
diff --git a/certs/VeriSignClass3PublicPrimaryCertificationAuthority-G5.cer b/certs/VeriSignClass3PublicPrimaryCertificationAuthority-G5.cer
diff --git a/docs/usage.md b/docs/usage.md
@@ -83,6 +83,9 @@ previous certificates are going to be erased. To overcome this it's required to
 ./arduino-fwuploader certificates flash --url arduino.cc:443,google.com:443 --file ~/Downloads/my_self_signed_.der -b arduino:mbed_nano:nanorp2040connect -a /dev/ttyACM0
 ```
 
+You can find the certificates that are preflashed on the NINA module
+[here](https://github.com/arduino/nina-fw/blob/master/data/roots.pem).
+
 ### Command line options
 
 The full list of command line options can be obtained with the `-h` option: `./arduino-fwuploader -h`