Seeed xiao esp32 c3 dht22

Products & Technology
9

well, I jumped too soon. It still is not working. So I loaded the test script from the dht22.h library. Here’s that code (with a mod I made to do a string dump of the data from the sensor)

#include <DHT22.h>
//define pin data
#define pinDATA 0 // SDA, or almost any other I/O pin

DHT22 dht22(pinDATA); 
 
void setup() {
  Serial.begin(115200); //1bit=10µs
  Serial.println("\ntest capteur DTH22");
}

void loop() {
  Serial.println(dht22.debug()); //optionnal

  float t = dht22.getTemperature();
  float h = dht22.getHumidity();

  Serial.println("StringData");
  Serial.println(dht22.getRawStrData());

  if (dht22.getLastError() != dht22.OK) {
    Serial.print("last error :");
    Serial.println(dht22.getLastError());
  }

  Serial.print("h=");Serial.print(h);Serial.print("\t");
  Serial.print("t=");Serial.println(t);
  delay(2000); //Collecting period should be : >1.7 second
}

And here is a printout of the serial output.

### BEGIN DEDUG ###
look at datasheet for timing specs
t_80L	t_80H	t_50	t_Bit0	t_Bit1
80	80	50	0	0
error : 1
0000000000000000 0000000000000000 00000000
h	t	crc
0.0	0.0	TRUE
### END DEDUG ###
StringData
0000000000000000 0000000000000000 00000000

Very confusing to me. I have no way of debugging the sensor that I can find, I have tried two different Seeed XIAO ESP32c3 processors and two different sensors and get the same results. I have changed pins twice with no change and I have changed voltages with on change. I don’t know what else I can do to get this sensor working with the seeed.