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@user7114
After a few days of 5 second temperature logging, the memory usage units increase from 657 to 667. The Serial1.available() still had zero on the LCD display. <-----
So, in conclusion, it was not the console serial port A10?
The "possible" very slow memory leak might be comming from any of the sensor or devices. I2C LCD, I2C RTC, 1-Wire DS18B20 or the buit-in SD card? It could be even in program, module or firmware?
New memory leak testing changes:
Disabled the 1-wire DS18b20 sensor read with a fixed constant.
On line 76 (above), I replaced the 1-wire "(sensor.getTemp(true)* 1.8 + 32 + " F. ")" with a fixed constant "1234" and on line 86 (above), I replaced "lcd.print("TempF: " + new String(sensor.getTemp(true)*1.8 + 32));" with a fixed constant of "5678"
After a few days of testing, the memory "unit" usage again increased by 10 and the Serial1.available() still stayed at zero. Still no help - any suggestions
welcomed <------<<<<
Espruino: v 1.3: firmware: v 66, WEB-IDE: v 45, Windows 8.1 / Chrome