Hey, I got myself the adafruit ultra slim round fingerprint sensor for my project. I got far enough to get it wired up to my Arduino Uno but for my project I need to use the pro micro (I don't need to worry about the 3v. Got that sorted already).
My main issue is the wiring. No matter how I wire it it won't be recognized by the software.
I use the arduino IDE 2.0 and the enroll sketch. The Baud rate for the serial monitor is at 57600 baud (the value that worked on the uno) and the sensor Baud is at 57600 as well.
I tried the TX and RX pins and pin 2 and 3 both with no result. If anyone has any experience with the sensor and wiring please help me out
Ultra slim round fingerprint sensor
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- jps2000
- Posts: 811
- Joined: Fri Jun 02, 2017 4:12 pm
Re: Ultra slim round fingerprint sensor
rx goes to tx and vice versa.
have you wired it like this?
have you wired it like this?
- IPv6
- Posts: 5
- Joined: Wed Jan 12, 2022 6:33 am
Re: Ultra slim round fingerprint sensor
jps2000 wrote:rx goes to tx and vice versa.
have you wired it like this?
Yeah i have. I tried several variations, swapping it back and forth, also tried the software serial pins and nothing works. The sensor is good since it works with the UNO
- adafruit_support_carter
- Posts: 29056
- Joined: Tue Nov 29, 2016 2:45 pm
Re: Ultra slim round fingerprint sensor
Please post a photo of your setup showing how everything is connected.
- IPv6
- Posts: 5
- Joined: Wed Jan 12, 2022 6:33 am
Re: Ultra slim round fingerprint sensor
I figured out why it wouldn't work. The wiring is fine it was the library that caused issues. I removed the software serial portion from the top of the code and only kept the hardware serial line. Now it works just fineadafruit_support_carter wrote:Please post a photo of your setup showing how everything is connected.
Please be positive and constructive with your questions and comments.