Hi. I use the fingerprint reader R308. The Arduino IDE 1.8.2, Board Nodemcu V3 ( esp8266 ). When I use the fingerprint.ino, I get the error:
fingerprint:28: error: no matching function for call to 'Adafruit_Fingerprint::Adafruit_Fingerprint(SoftwareSerial*)'
С‹\Arduino\fingerprint\fingerprint.ino:28:61: note: candidates are:
In file included from С‹\Arduino\fingerprint\fingerprint.ino:19:0:
C:\Program Files (x86)\Arduino\libraries\Adafruit-Fingerprint-Sensor-Library-master/Adafruit_Fingerprint.h:77:3: note: Adafruit_Fingerprint::Adafruit_Fingerprint(HardwareSerial*)
Adafruit_Fingerprint(HardwareSerial *);
^
C:\Program Files (x86)\Arduino\libraries\Adafruit-Fingerprint-Sensor-Library-master/Adafruit_Fingerprint.h:77:3: note: no known conversion for argument 1 from 'SoftwareSerial*' to 'HardwareSerial*'
C:\Program Files (x86)\Arduino\libraries\Adafruit-Fingerprint-Sensor-Library-master/Adafruit_Fingerprint.h:72:7: note: constexpr Adafruit_Fingerprint::Adafruit_Fingerprint(const Adafruit_Fingerprint&)
class Adafruit_Fingerprint {
^
C:\Program Files (x86)\Arduino\libraries\Adafruit-Fingerprint-Sensor-Library-master/Adafruit_Fingerprint.h:72:7: note: no known conversion for argument 1 from 'SoftwareSerial*' to 'const Adafruit_Fingerprint&'
C:\Program Files (x86)\Arduino\libraries\Adafruit-Fingerprint-Sensor-Library-master/Adafruit_Fingerprint.h:72:7: note: constexpr Adafruit_Fingerprint::Adafruit_Fingerprint(Adafruit_Fingerprint&&)
C:\Program Files (x86)\Arduino\libraries\Adafruit-Fingerprint-Sensor-Library-master/Adafruit_Fingerprint.h:72:7: note: no known conversion for argument 1 from 'SoftwareSerial*' to 'Adafruit_Fingerprint&&'
С‹\Arduino\fingerprint\fingerprint.ino: In function 'uint8_t getFingerprintID()':
С‹\Arduino\fingerprint\fingerprint.ino:120:1: warning: control reaches end of non-void function [-Wreturn-type]
exit status 1
no matching function for call to 'Adafruit_Fingerprint::Adafruit_Fingerprint(SoftwareSerial*)'
Fingerprint error
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- hnazarparvar
- Posts: 1
- Joined: Sat Feb 02, 2019 6:05 am
Re: Fingerprint error
hi there
i have this problem too.
please led me!
best regards
hassan nazarparvar
i have this problem too.
please led me!
best regards
hassan nazarparvar
- adafruit_support_carter
- Posts: 29483
- Joined: Tue Nov 29, 2016 2:45 pm
Re: Fingerprint error
Software serial is only available for certain boards:
https://github.com/adafruit/Adafruit-Fi ... int.h#L111
https://github.com/adafruit/Adafruit-Fi ... int.h#L111
Please be positive and constructive with your questions and comments.