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sm300d2: Accept (undocumented) 0x80 checksum offset. (#2263)
Co-authored-by: Matt Hallacy <github@poptix.net>
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7dd40e2014
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1 changed files with 2 additions and 1 deletions
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@ -27,7 +27,8 @@ void SM300D2Sensor::update() {
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}
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uint16_t calculated_checksum = this->sm300d2_checksum_(response);
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if (calculated_checksum != response[SM300D2_RESPONSE_LENGTH - 1]) {
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if ((calculated_checksum != response[SM300D2_RESPONSE_LENGTH - 1]) &&
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(calculated_checksum - 0x80 != response[SM300D2_RESPONSE_LENGTH - 1])) {
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ESP_LOGW(TAG, "SM300D2 Checksum doesn't match: 0x%02X!=0x%02X", response[SM300D2_RESPONSE_LENGTH - 1],
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calculated_checksum);
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this->status_set_warning();
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