Hello everyone!
I'm doing a proyect with a GSM board in which I want to send an sms every two weeks (aprox.)
How can I program the time? Would you use absolute time since arduino board was turned on or is a way I can use actual time?
Thank you all
Hello everyone!
I'm doing a proyect with a GSM board in which I want to send an sms every two weeks (aprox.)
How can I program the time? Would you use absolute time since arduino board was turned on or is a way I can use actual time?
Thank you all
I would use a real time clock chip. There are lots about and normally they attach to the I2C bus lines. Adafruit do a small PCB board with one on for under $10
Thank you, I will try it