Comments (2)
Hi, finally you need to use any esp8266 package ABOVE 2.4, I mean, you can use 2.3, but not 2.4
"you have to take into account that Arduino core for ESP8266 version 2.4 and later has troubles with Software Serial (check plerup/espsoftwareserial#63).
So you have to use version 2.3."
from biometric-attendance-system-v1.0.
Exactly, that's right.
When I tried using SIM800L with NodeMCU I had a communication problem sometimes.
So I change the ESP8266 version to 2.4.2 and after that everything worked as it should.
On other hands, When I made the code for this project (fingerprint system), I tired many ESP8266 versions in order to check if the Software Serial library will work or not, so after testing these libraries I noticed that the code worked. but sometimes still there problems while using 2.5.0 version.
Anyway, There are two versions I will test them soon for the SIM800L and NodeMCU project to know which is the better library for that.
Thanks for your time and sharing your result.
from biometric-attendance-system-v1.0.
Related Issues (5)
- Export between two dates HOT 3
- Stablish a admin password HOT 1
- Does not work with external server HOT 3
- Data base file is missing HOT 1
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from biometric-attendance-system-v1.0.