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Selecting folder by tag works, but invalid tags makes the device crash

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This commit is contained in:
Daniele Verducci
2025-12-11 23:38:01 +01:00
parent ea8c69e0aa
commit b1f86b90d5
1 changed files with 15 additions and 9 deletions
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22
esphome/fabula.yaml
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@@ -42,16 +42,22 @@ pn532_i2c:
loop: True loop: True
# Crashes somewhere here in the lambda # Crashes somewhere here in the lambda
folder: !lambda |- folder: !lambda |-
if (!tag.has_ndef_message()) { if (tag.has_ndef_message()) {
return 0; // Plays "No tag found" audio const auto &message = tag.get_ndef_message();
const auto &records = message->get_records();
for (const auto &record : records) {
if (record->get_type().c_str()[0] != 'T') {
ESP_LOGD("Fabula", " Ignoring non-text record %s", record->get_payload().c_str());
continue;
} }
auto message = tag.get_ndef_message(); ESP_LOGD("Fabula", " Found record %s in tag, try to convert to int", record->get_payload().c_str());
auto records = message->get_records(); // Note: exception handling is disabled in ESPHome: the following line may crash the microcontroller if a tag with a textual record if scanned
for (auto &record : records) { int folderId = std::stoi(record->get_payload());
std::string payload = record->get_payload(); ESP_LOGD("Fabula", " Found valid record in tag: playing folder %d", folderId);
ESP_LOGD("Fabula", "NFC NDEF record type %s - value %s - int value %d", record->get_type().c_str(), record->get_payload().c_str(), stoi(payload)); return folderId;
return stoi(payload);
} }
}
ESP_LOGD("Fabula", " No valid record found in tag. Please add a text field containing the folder number, e.g. 001");
return 0; return 0;
on_tag_removed: on_tag_removed:
then: then: