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fix a01nyub data reading (#5882)

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Co-authored-by: Samuel Sieb <samuel@sieb.net>
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Samuel Sieb 2023-12-04 15:41:33 -08:00 committed by GitHub
parent e271faa544
commit 29dcc4031f
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1 changed files with 18 additions and 31 deletions
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49
esphome/components/a01nyub/a01nyub.cpp
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@ -8,50 +8,37 @@ namespace esphome {
namespace a01nyub { namespace a01nyub {
static const char *const TAG = "a01nyub.sensor"; static const char *const TAG = "a01nyub.sensor";
static const uint8_t MAX_DATA_LENGTH_BYTES = 4;
void A01nyubComponent::loop() { void A01nyubComponent::loop() {
uint8_t data; uint8_t data;
while (this->available() > 0) { while (this->available() > 0) {
if (this->read_byte(&data)) { this->read_byte(&data);
buffer_.push_back(data); if (this->buffer_.empty() && (data != 0xff))
continue;
buffer_.push_back(data);
if (this->buffer_.size() == 4)
this->check_buffer_(); this->check_buffer_();
}
} }
} }
void A01nyubComponent::check_buffer_() { void A01nyubComponent::check_buffer_() {
if (this->buffer_.size() >= MAX_DATA_LENGTH_BYTES) { uint8_t checksum = this->buffer_[0] + this->buffer_[1] + this->buffer_[2];
size_t i; if (this->buffer_[3] == checksum) {
for (i = 0; i < this->buffer_.size(); i++) { float distance = (this->buffer_[1] << 8) + this->buffer_[2];
// Look for the first packet if (distance > 280) {
if (this->buffer_[i] == 0xFF) { float meters = distance / 1000.0;
if (i + 1 + 3 < this->buffer_.size()) { // Packet is not complete ESP_LOGV(TAG, "Distance from sensor: %f mm, %f m", distance, meters);
return; // Wait for completion this->publish_state(meters);
} } else {
ESP_LOGW(TAG, "Invalid data read from sensor: %s", format_hex_pretty(this->buffer_).c_str());
uint8_t checksum = (this->buffer_[i] + this->buffer_[i + 1] + this->buffer_[i + 2]) & 0xFF;
if (this->buffer_[i + 3] == checksum) {
float distance = (this->buffer_[i + 1] << 8) + this->buffer_[i + 2];
if (distance > 280) {
float meters = distance / 1000.0;
ESP_LOGV(TAG, "Distance from sensor: %f mm, %f m", distance, meters);
this->publish_state(meters);
} else {
ESP_LOGW(TAG, "Invalid data read from sensor: %s", format_hex_pretty(this->buffer_).c_str());
}
}
break;
}
} }
this->buffer_.clear(); } else {
ESP_LOGW(TAG, "checksum failed: %02x != %02x", checksum, this->buffer_[3]);
} }
this->buffer_.clear();
} }
void A01nyubComponent::dump_config() { void A01nyubComponent::dump_config() { LOG_SENSOR("", "A01nyub Sensor", this); }
ESP_LOGCONFIG(TAG, "A01nyub Sensor:");
LOG_SENSOR(" ", "Distance", this);
}
} // namespace a01nyub } // namespace a01nyub
} // namespace esphome } // namespace esphome