MsTimer2 is a small and very easy to use library to interface Timer2 with humans. Its called MsTimer2 because it hardcodes a resolution of 1 millisecond on timer2. Lightweight Low Power Arduino Library Rocket Scream. Hi,Thanks for the nice product Mini Ultra and the low power library. Being new to sleep modes and energy optimization with MCUs, I could not figure out how to make the software RTC RTClib in my case to work with the sleep mode, is it just impossible or do I always need a hardware RTC like DS1. My example code is like that includeinclude RTClib. RTClibinclude https github. Download Teensyduino, Version 1. Teensyduino is a software addon for the Arduino software. Create Bdc Program Sap Abap here. An overview of basic interrupts on the Arduino and how to use them to handle precise timing and input events. The Rock 7 RockBLOCK is a fascinating new communications module that gives TTLlevel devices like Arduino access to the Iridium satellite network. If you dont know what Arduino is, start here Arduino site Google it and youll find a plethora of information and project sites. Its quite a remarkable little. Low Power. RTCMillis RTC void setupvoid Serial. Wire. begin following line sets the RTC to the date time this sketch was compiled. Arduino Software Interrupt' title='Arduino Software Interrupt' />RTC. Date. TimeDATE, TIME void loop Sleep for x s with ADC module and BOD module off other options, see Low. Power. cpp, e. g. FOREVERLow. Power. DownSLEEP1. S, ADCOFF, BODOFF ADCCONTROLOFF ADCOFF Get the time using the software RTCDate. Time now RTC. now Print on the Serial Monitor Console the time debuggingSerial. DEC Serial. print Serial. DEC Serial. print Serial. DEC Serial. print Serial. DEC Serial. print Serial. DEC Serial. print Serial. DEC Serial. println Integer that could be saved to the EEPROM Could be then converted to human readable format when reading in the data in Python, Matlab, Java, whatever. Serial. print seconds since 1. Serial. printlnnow. And the output on Serial Monitor like that the time increment in real world time is now 1 second2.