I'm using a Wemos D1 mini with a R503 Fingerprint sensor. The wiring seems to be correct and mqtt is working too.
I can learn new fingers but everytime i put my finger on the sensor i get this output
Found fingerprint sensor!
Connecting.......
Connected, IP address: 192.168.7.172
Attempting MQTT connection...connected
Image taken
Image converted
Unknown error
Communication error
It seems to happen in this part of the sketch
// OK converted!
p = finger.fingerFastSearch();
if (p == FINGERPRINT_OK) {
Serial.println("Found a print match!");
lastID = finger.fingerID;
lastConfidenceScore = finger.confidence;
return p;
} else if (p == FINGERPRINT_PACKETRECIEVEERR) {
Serial.println("Communication error");
return p;
} else if (p == FINGERPRINT_NOTFOUND) {
Serial.println("Did not find a match");
return p;
} else {
Serial.println("Unknown error");
return p;
}
Any idea how to solve the problem? I tired it with 2 different R503 and two different Wemos D1 mini
My wiring is
Red + White > 3,3V
Black > Ground
Yellow > D6
Green > D5
Blue > not connected
Hi,
I'm using a Wemos D1 mini with a R503 Fingerprint sensor. The wiring seems to be correct and mqtt is working too. I can learn new fingers but everytime i put my finger on the sensor i get this output
It seems to happen in this part of the sketch
Any idea how to solve the problem? I tired it with 2 different R503 and two different Wemos D1 mini
My wiring is
Red + White > 3,3V Black > Ground Yellow > D6 Green > D5 Blue > not connected