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Added support to multiple SR04 (#20975) 

* added support to multiple SR04

* Reduced MAX # of SR04 to 3 as ESP32 has only 3 serial uarts
This commit is contained in:
Julio Vilmar Gesser 2024-03-31 10:12:29 -03:00 committed by GitHub
parent b15a0e2f1f
commit 60666fa1c5
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GPG Key ID: B5690EEEBB952194
3 changed files with 89 additions and 83 deletions
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1
tasmota/include/tasmota.h
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@ -92,6 +92,7 @@ const uint8_t MAX_IRSEND = 16; // Max number of IRSEND GPIOs
const uint8_t MAX_RULE_SETS = 3; // Max number of rule sets of size 512 characters
const uint16_t MAX_RULE_SIZE = 512; // Max number of characters in rules
const uint16_t VL53LXX_MAX_SENSORS = 8; // Max number of VL53L0X sensors
const uint8_t MAX_SR04 = 3; // Max number of SR04 ultrasonic sensors
#ifdef ESP32
const uint8_t MAX_I2C = 2; // Max number of I2C controllers (ESP32 = 2)

4
tasmota/include/tasmota_template.h
View File

@ -835,8 +835,8 @@ const uint16_t kGpioNiceList[] PROGMEM = {
AGPIO(GPIO_RF_SENSOR), // Rf receiver with sensor decoding
#endif
#ifdef USE_SR04
AGPIO(GPIO_SR04_TRIG), // SR04 Tri/TXgger pin
AGPIO(GPIO_SR04_ECHO), // SR04 Ech/RXo pin
AGPIO(GPIO_SR04_TRIG) + MAX_SR04, // SR04 Tri/TXgger pin
AGPIO(GPIO_SR04_ECHO) + MAX_SR04, // SR04 Ech/RXo pin
#endif
#ifdef USE_ME007
AGPIO(GPIO_ME007_TRIG), // ME007 Trigger pin (xsns_23_me007.ino)

167
tasmota/tasmota_xsns_sensor/xsns_22_sr04.ino
View File

@ -45,10 +45,10 @@ struct {
float distance;
uint8_t valid;
uint8_t type = SR04_NOT_DETECTED;
} SR04;
NewPing* sonar = nullptr;
TasmotaSerial* sonar_serial = nullptr;
} SR04[MAX_SR04];
NewPing* sonar = nullptr;
TasmotaSerial* sonar_serial = nullptr;
uint16_t Sr04TMiddleValue(uint16_t first, uint16_t second, uint16_t third) {
uint16_t ret = first;
@ -66,19 +66,19 @@ uint16_t Sr04TMiddleValue(uint16_t first, uint16_t second, uint16_t third) {
}
}
uint16_t Sr04TMode2Distance(void) {
uint16_t Sr04TMode2Distance(uint32_t i) {
uint8_t buffer[4]; // Accommodate either 2 or 4 bytes of data
uint32_t buffer_idx = 0;
uint32_t end = millis() + 100;
while (millis() < end) {
if (sonar_serial->available() && (buffer_idx < sizeof(buffer))) {
buffer[buffer_idx++] = sonar_serial->read();
if (SR04[i].sonar_serial->available() && (buffer_idx < sizeof(buffer))) {
buffer[buffer_idx++] = SR04[i].sonar_serial->read();
end = millis() + 10;
}
delay(1);
}
if (SR04_MODE_NONE == SR04.type) { // Only log during detection
AddLog(LOG_LEVEL_DEBUG, PSTR("SR4: Received '%*_H'"), buffer_idx, buffer);
if (SR04_MODE_NONE == SR04[i].type) { // Only log during detection
AddLog(LOG_LEVEL_DEBUG, PSTR("SR4-%d: Received '%*_H'"), i+1, buffer_idx, buffer);
}
uint32_t distance = 0;
@ -90,7 +90,7 @@ uint16_t Sr04TMode2Distance(void) {
if (crc == buffer[3]) { // Check crc sum
distance = (buffer[1] << 8) + buffer[2];
} else {
AddLog(LOG_LEVEL_ERROR, PSTR("SR4: CRC error"));
AddLog(LOG_LEVEL_ERROR, PSTR("SR4-%d: CRC error"), i+1);
}
}
else if (buffer_idx > 1) { // US-100 serial has no CRC
@ -101,108 +101,111 @@ uint16_t Sr04TMode2Distance(void) {
return distance;
}
uint16_t Sr04TMode3Distance() {
sonar_serial->write(0x55);
sonar_serial->flush();
uint16_t Sr04TMode3Distance(uint32_t i) {
SR04[i].sonar_serial->write(0x55);
SR04[i].sonar_serial->flush();
return Sr04TMode2Distance();
return Sr04TMode2Distance(i);
}
/*********************************************************************************************/
void Sr04TModeDetect(void) {
SR04.type = SR04_MODE_NONE;
if (!PinUsed(GPIO_SR04_ECHO)) { return; }
for (uint32_t i = 0; i < MAX_SR04; i++) {
SR04[i].type = SR04_MODE_NONE;
if (!PinUsed(GPIO_SR04_ECHO, i)) { continue; }
int sr04_echo_pin = Pin(GPIO_SR04_ECHO);
int sr04_trig_pin = Pin(GPIO_SR04_TRIG); // if GPIO_SR04_TRIG is not configured use single PIN mode with GPIO_SR04_TRIG as -1
sonar_serial = new TasmotaSerial(sr04_echo_pin, sr04_trig_pin, 1);
int sr04_echo_pin = Pin(GPIO_SR04_ECHO, i);
int sr04_trig_pin = Pin(GPIO_SR04_TRIG, i); // if GPIO_SR04_TRIG is not configured use single PIN mode with GPIO_SR04_TRIG as -1
SR04[i].sonar_serial = new TasmotaSerial(sr04_echo_pin, sr04_trig_pin, 1);
if (sonar_serial && sonar_serial->begin(9600)) {
DEBUG_SENSOR_LOG(PSTR("SR4: Detect mode"));
if (SR04[i].sonar_serial && SR04[i].sonar_serial->begin(9600)) {
DEBUG_SENSOR_LOG(PSTR("SR4: Detect mode"));
if (PinUsed(GPIO_SR04_TRIG)) {
SR04.type = (Sr04TMiddleValue(Sr04TMode3Distance(), Sr04TMode3Distance(), Sr04TMode3Distance()) != 0) ? SR04_MODE_SER_TRANSCEIVER : SR04_MODE_TRIGGER_ECHO;
} else {
SR04.type = (Sr04TMiddleValue(Sr04TMode2Distance(), Sr04TMode2Distance(), Sr04TMode2Distance()) != 0) ? SR04_MODE_SER_RECEIVER : SR04_MODE_TRIGGER_ECHO;
}
} else {
SR04.type = SR04_MODE_TRIGGER_ECHO;
}
if (SR04.type < SR04_MODE_SER_RECEIVER) {
if (sonar_serial) {
delete sonar_serial;
sonar_serial = nullptr;
}
sr04_trig_pin = (PinUsed(GPIO_SR04_TRIG)) ? Pin(GPIO_SR04_TRIG) : Pin(GPIO_SR04_ECHO); // if GPIO_SR04_TRIG is not configured use single PIN mode with GPIO_SR04_ECHO only
sonar = new NewPing(sr04_trig_pin, sr04_echo_pin, SR04_MAX_SENSOR_DISTANCE);
delay(100); // give time to inizialise, preventing ping_median fails
if (!sonar || !sonar->ping_median(5)) {
SR04.type = SR04_MODE_NONE;
}
} else {
if (sonar_serial) {
if (sonar_serial->hardwareSerial()) {
ClaimSerial();
if (PinUsed(GPIO_SR04_TRIG, i)) {
SR04[i].type = (Sr04TMiddleValue(Sr04TMode3Distance(i), Sr04TMode3Distance(i), Sr04TMode3Distance(i)) != 0) ? SR04_MODE_SER_TRANSCEIVER : SR04_MODE_TRIGGER_ECHO;
} else {
SR04[i].type = (Sr04TMiddleValue(Sr04TMode2Distance(i), Sr04TMode2Distance(i), Sr04TMode2Distance(i)) != 0) ? SR04_MODE_SER_RECEIVER : SR04_MODE_TRIGGER_ECHO;
}
#ifdef ESP32
AddLog(LOG_LEVEL_DEBUG, PSTR("SR4: Serial UART%d"), sonar_serial->getUart());
#endif
} else {
SR04[i].type = SR04_MODE_TRIGGER_ECHO;
}
}
AddLog(LOG_LEVEL_INFO,PSTR("SR4: Mode %d"), SR04.type);
if (SR04[i].type < SR04_MODE_SER_RECEIVER) {
if (SR04[i].sonar_serial) {
delete SR04[i].sonar_serial;
SR04[i].sonar_serial = nullptr;
}
sr04_trig_pin = (PinUsed(GPIO_SR04_TRIG, i)) ? Pin(GPIO_SR04_TRIG,i ) : Pin(GPIO_SR04_ECHO, i); // if GPIO_SR04_TRIG is not configured use single PIN mode with GPIO_SR04_ECHO only
SR04[i].sonar = new NewPing(sr04_trig_pin, sr04_echo_pin, SR04_MAX_SENSOR_DISTANCE);
delay(100); // give time to inizialise, preventing ping_median fails
if (!SR04[i].sonar || !SR04[i].sonar->ping_median(5)) {
SR04[i].type = SR04_MODE_NONE;
}
} else {
if (SR04[i].sonar_serial) {
if (SR04[i].sonar_serial->hardwareSerial()) {
ClaimSerial();
}
#ifdef ESP32
AddLog(LOG_LEVEL_DEBUG, PSTR("SR4-%d: Serial UART%d"), i+1, SR04[i].sonar_serial->getUart());
#endif
}
}
AddLog(LOG_LEVEL_INFO,PSTR("SR4-%d: Mode %d"), i+1, SR04[i].type);
}
}
void Sr04TReading(void) {
void Sr04TReading(uint32_t i) {
if (TasmotaGlobal.uptime < 3) { return; }
if (SR04.valid) {
SR04.valid--;
if (SR04[i].valid) {
SR04[i].valid--;
} else {
SR04.distance = 0;
SR04[i].distance = 0;
}
float distance;
switch (SR04.type) {
switch (SR04[i].type) {
case SR04_NOT_DETECTED:
Sr04TModeDetect();
SR04.valid = (SR04.type) ? SENSOR_MAX_MISS : 0;
SR04[i].valid = (SR04[i].type) ? SENSOR_MAX_MISS : 0;
break;
case SR04_MODE_SER_TRANSCEIVER:
distance = (float)(Sr04TMiddleValue(Sr04TMode3Distance(), Sr04TMode3Distance(), Sr04TMode3Distance())) / 10; // Convert to cm
distance = (float)(Sr04TMiddleValue(Sr04TMode3Distance(i), Sr04TMode3Distance(i), Sr04TMode3Distance(i))) / 10; // Convert to cm
break;
case SR04_MODE_SER_RECEIVER:
//empty input buffer first
while(sonar_serial->available()) { sonar_serial->read(); }
distance = (float)(Sr04TMiddleValue(Sr04TMode2Distance(), Sr04TMode2Distance(), Sr04TMode2Distance())) / 10; // Convert to cm
while(SR04[i].sonar_serial->available()) { SR04[i].sonar_serial->read(); }
distance = (float)(Sr04TMiddleValue(Sr04TMode2Distance(i), Sr04TMode2Distance(i), Sr04TMode2Distance(i))) / 10; // Convert to cm
break;
case SR04_MODE_TRIGGER_ECHO:
distance = (float)(sonar->ping_median(5)) / US_ROUNDTRIP_CM;
distance = (float)(SR04[i].sonar->ping_median(5)) / US_ROUNDTRIP_CM;
break;
default:
distance = 0;
}
if (distance) {
SR04.distance = distance;
SR04.valid = SENSOR_MAX_MISS;
SR04[i].distance = distance;
SR04[i].valid = SENSOR_MAX_MISS;
}
}
void Sr04Show(bool json) {
if (SR04.valid) { // Check if read failed
void Sr04Show(uint32_t i, bool json) {
if (SR04[i].valid) {
char types[12];
snprintf_P(types, sizeof(types), PSTR("SR04%c%d"), IndexSeparator(), i+1);
if(json) {
ResponseAppend_P(PSTR(",\"SR04\":{\"" D_JSON_DISTANCE "\":%1_f}"), &SR04.distance);
ResponseAppend_P(PSTR(",\"%s\":{\"" D_JSON_DISTANCE "\":%1_f}"), types, &SR04[i].distance);
#ifdef USE_DOMOTICZ
if (0 == TasmotaGlobal.tele_period) {
DomoticzFloatSensor(DZ_COUNT, SR04.distance); // Send distance as Domoticz Counter value
DomoticzFloatSensor(DZ_COUNT, SR04[i].distance); // Send distance as Domoticz Counter value
}
#endif // USE_DOMOTICZ
#ifdef USE_WEBSERVER
} else {
WSContentSend_PD(HTTP_SNS_F_DISTANCE_CM, "SR04", &SR04.distance);
WSContentSend_PD(HTTP_SNS_F_DISTANCE_CM, types, &SR04[i].distance);
#endif // USE_WEBSERVER
}
}
@ -215,20 +218,22 @@ void Sr04Show(bool json) {
bool Xsns22(uint32_t function) {
bool result = false;
if (SR04.type) {
switch (function) {
case FUNC_EVERY_SECOND:
Sr04TReading();
result = true;
break;
case FUNC_JSON_APPEND:
Sr04Show(1);
break;
#ifdef USE_WEBSERVER
case FUNC_WEB_SENSOR:
Sr04Show(0);
break;
#endif // USE_WEBSERVER
for (uint32_t i = 0; i < MAX_SR04; i++) {
if (SR04[i].type) {
switch (function) {
case FUNC_EVERY_SECOND:
Sr04TReading(i);
result = true;
break;
case FUNC_JSON_APPEND:
Sr04Show(i, 1);
break;
#ifdef USE_WEBSERVER
case FUNC_WEB_SENSOR:
Sr04Show(i, 0);
break;
#endif // USE_WEBSERVER
}
}
}
return result;