I have purchased the teensy 3.2 and I will got it tomorrow.
I will move on from Arduino Pro Mini V3.3 to Teensy because of FLASH & RAM.
On Arduino I used DS3231 and with this Library https://github.com/sleemanj/DS3231_Simple I wakeup (setAlarm) the arduino for example at 21:00 every day.
With that way I save a lot of energy and I have accuracy (send SMS)
Seems, with some research that I have done, there is not way to use Teensy's RTC (adding crystal) to wake up on exact HOUR-MINUTE.
Seems more complicated to me...I'm trying to understand HOW to SLEEP and WAKE with external interrupt
https://forum.pjrc.com/threads/33243-RTC-alarm-to-wake-up-from-deep-sleep
My project has
DS3231
SIM800L
DHT22x2
HX711
So I would like to tell/help me the best possible solution
1) Iron a crystal + CR2032 v3 bat
2) Use DS3231 with Library "DS3231_Simple"
3) other....(?)
THANK YOU FOR YOUR TIME!
I will move on from Arduino Pro Mini V3.3 to Teensy because of FLASH & RAM.
On Arduino I used DS3231 and with this Library https://github.com/sleemanj/DS3231_Simple I wakeup (setAlarm) the arduino for example at 21:00 every day.
With that way I save a lot of energy and I have accuracy (send SMS)
Seems, with some research that I have done, there is not way to use Teensy's RTC (adding crystal) to wake up on exact HOUR-MINUTE.
Seems more complicated to me...I'm trying to understand HOW to SLEEP and WAKE with external interrupt
https://forum.pjrc.com/threads/33243-RTC-alarm-to-wake-up-from-deep-sleep
My project has
DS3231
SIM800L
DHT22x2
HX711
So I would like to tell/help me the best possible solution
1) Iron a crystal + CR2032 v3 bat
2) Use DS3231 with Library "DS3231_Simple"
3) other....(?)
THANK YOU FOR YOUR TIME!