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[jsn_sr04t] Fix model AJ_SR04M (#11992)

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Jonathan Swoboda
2025-11-21 07:39:59 -05:00
committed by GitHub
parent 01addeae08
commit 0dea7a23e3
1 changed files with 3 additions and 12 deletions
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esphome/components/jsn_sr04t/jsn_sr04t.cpp
+3 -12
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@@ -10,7 +10,7 @@ namespace jsn_sr04t {
static const char *const TAG = "jsn_sr04t.sensor"; static const char *const TAG = "jsn_sr04t.sensor";
void Jsnsr04tComponent::update() { void Jsnsr04tComponent::update() {
this->write_byte(0x55); this->write_byte((this->model_ == AJ_SR04M) ? 0x01 : 0x55);
ESP_LOGV(TAG, "Request read out from sensor"); ESP_LOGV(TAG, "Request read out from sensor");
} }
@@ -31,19 +31,10 @@ void Jsnsr04tComponent::loop() {
} }
void Jsnsr04tComponent::check_buffer_() { void Jsnsr04tComponent::check_buffer_() {
uint8_t checksum = 0; uint8_t checksum = this->buffer_[0] + this->buffer_[1] + this->buffer_[2];
switch (this->model_) {
case JSN_SR04T:
checksum = this->buffer_[0] + this->buffer_[1] + this->buffer_[2];
break;
case AJ_SR04M:
checksum = this->buffer_[1] + this->buffer_[2];
break;
}
if (this->buffer_[3] == checksum) { if (this->buffer_[3] == checksum) {
uint16_t distance = encode_uint16(this->buffer_[1], this->buffer_[2]); uint16_t distance = encode_uint16(this->buffer_[1], this->buffer_[2]);
if (distance > 250) { if (distance > ((this->model_ == AJ_SR04M) ? 200 : 250)) {
float meters = distance / 1000.0f; float meters = distance / 1000.0f;
ESP_LOGV(TAG, "Distance from sensor: %umm, %.3fm", distance, meters); ESP_LOGV(TAG, "Distance from sensor: %umm, %.3fm", distance, meters);
this->publish_state(meters); this->publish_state(meters);