SEN0188 stopped worked

userHead Account cancelled 2022-01-28 03:56:14 171 Views1 Replies
Hello everyone, I Bought SEN0188 sensor and I tried to use but its give error: "Did not find fingerprint sensor :(". After some search and datasheet checking, I Finded error and updated "FINGERPRINT_VERIFYPASSWORD". After some usage and testing. I finished project, I put in the box and after some trying, I again getting to "Did not find fingerprint sensor :(" again. I checked my code, wiring shematic and etc.. But doesnt working.


Code :
Code: Select all
#include <Adafruit_Fingerprint.h>

#if (defined(__AVR__) || defined(ESP8266)) && !defined(__AVR_ATmega2560__)
SoftwareSerial mySerial(2, 3);
#define mySerial Serial1

Adafruit_Fingerprint finger = Adafruit_Fingerprint(&mySerial);

void setup()
  while (!Serial);  // For Yun/Leo/Micro/Zero/...
  Serial.println("\n\nAdafruit finger detect test");

  while (true) {
    if (finger.verifyPassword()) {
      Serial.println("Found fingerprint sensor!");
    } else {
      Serial.println("Did not find fingerprint sensor :(");

void loop() {}
2023-01-17 14:18:18

This looks like a bad connection somewhere in the wiring. It is recommended to replace the wire, or use a multimeter to test the circuit.

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