4. Timer Camera X with Fingerprint FPC1020A

Timer Camera X with Fingerprint FPC1020A

  • L

    Hi guys please im having ESP32 PSRAM Timer Camera X and i bought Finger Print Sensor Unit (FPC1020A), please could someone help me create some test code if fingerprint sensor is working. Its connected via Grove Cable. I cant make it work.... like im not getting any value .. Maybe i just doing some mistake with rx, tx. i just dont know how to make it

    using this #include "M5_FPC1020A.h" library. #include "M5_FPC1020A.h"

    FingerPrint Finger;

    void setup() {
    Serial.begin(115200);
    delay(2000);

    Serial.println("FingerPrint Sensor Setup");


uint8_t rx = 16;
uint8_t tx = 17;

Finger.begin(&Serial2, rx, tx);

    }

    void loop() {

    uint8_t addUserResult = Finger.fpm_addUser(1, 1);

if (addUserResult == ACK_SUCCESS) {
    Serial.println("User added successfully!");
} else {
    Serial.print("Failed to add user. Error code: ");
    Serial.println(addUserResult);
}

// Compare fingerprints

uint8_t compareResult = Finger.fpm_compareFinger();

if (compareResult == ACK_SUCCESS) {
    Serial.println("Fingerprints match!");
} else if (compareResult == ACK_NOUSER) {
    Serial.println("No fingerprints enrolled.");
} else if (compareResult == ACK_TIMEOUT) {
    Serial.println("Fingerprint matching timeout.");
} else {
    Serial.print("Fingerprints do not match. Error code: ");
    Serial.println(compareResult);
}

delay(10000);

    }

    0

  • Hello @Lubos22

    Timer Camera X Groove port is GPIO4 and GPIO13. See back of camera or pinmap here.

    Thanks
    Felix

    0
  • L

    Thank you for your reply. So should i just change rx and tx ? uint8_t rx = 13;
    uint8_t tx = 4; Because i tried that Failed to add user. Error code: 1

    No fingerprints enrolled.

Failed to add user. Error code: 1

No fingerprints enrolled.

Failed to add user. Error code: 1

Fingerprints do not match. Error code: 1.

    Dont know ... What to do please help.

    0

  • Hello @Lubos22

    unfortunately I do not have a fingerprint unit to test with so I cannot say what else might be wrong. Sorry.

    Thanks
    Felix

    0
  • L

    Thank you, Can anyone else help please?

    0
  • L

    void loop() {
    // Print the current add mode
    Serial.println(Finger.fpm_readAddMode());

    // Add a user with user number 21 and permission 1
    uint8_t addUserResult = Finger.fpm_addUser(21, 1);
    // Print the result of adding the user
    Serial.print("Add user result: ");
    Serial.println(addUserResult);

    // Print additional details for debugging
    for (int i = 0; i < 9; i++) {
    Serial.print("RxBuf[");
    Serial.print(i);
    Serial.print("]: ");
    Serial.println(Finger.RxBuf[i], HEX);
    }

    output when the finger is not placed on the fingerprint:
    1
    Add user result: 1
    RxBuf[0]: FF
    RxBuf[1]: 0
    RxBuf[2]: 0
    RxBuf[3]: 0
    RxBuf[4]: 0
    RxBuf[5]: 0
    RxBuf[6]: 0
    RxBuf[7]: 0
    RxBuf[8]: 0

    output when the finger is placed on the fingerprint:
    Add user result: 1
    RxBuf[0]: FF
    RxBuf[1]: FF
    RxBuf[2]: FF
    RxBuf[3]: FF
    RxBuf[4]: FF
    RxBuf[5]: FF
    RxBuf[6]: FF
    RxBuf[7]: FF
    RxBuf[8]: 0

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  • L

    and when I try to test 100x by putting my finger... I have Add user result: 0 but the chance is 1/100. So could it be the fingerprint unit is broken?
    User added successfully!
    RxBuf[0]: F5
    RxBuf[1]: 3
    RxBuf[2]: 0
    RxBuf[3]: 0
    RxBuf[4]: 0
    RxBuf[5]: 0
    RxBuf[6]: 3
    RxBuf[7]: F5
    RxBuf[8]: 0
    1

    0