Note

ampel-firmware/co2_sensor.cpp

@@ -18,6 +18,7 @@ namespace config {
 }
 
 #if defined(ESP8266)
+//NOTE: This library requires much less memory than SoftwareSerial.h
 #  include "src/lib/Esp8266EdgeSoftwareSerial/MySoftwareSerial.h"
 #  define S8_RX_PIN 13         // GPIO13, a.k.a. D7, connected to S8 Tx pin.
 #  define S8_TX_PIN 15         // GPIO15, a.k.a. D8, connected to S8 Rx pin.