Research on this 'subject' was a futile exercise as 'solution's' were all over the map.
My main concern is this: Can a microcontroller be awakened using bluetooth (BLE)?
For the sake of clarity:
1 A smartphone BLE app will wake up the board
2 Once the board is awake it will transmit a humidity reading
3 When the data is received by the smartphone, the board will go back to sleep to preserve battery power
I am cognizant of using RTC's to awaken microcontroller's at preset times. I want to awaken the microcontroller at random times.
Thanks for any comments or suggestions.
Wake up Arduino board with BLE?
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- sj_remington
- Posts: 1021
- Joined: Mon Jul 27, 2020 4:51 pm
Re: Wake up Arduino board with BLE?
Bluetooth reception requires a powered up Bluetooth receiver.
What will be controlling the receiver, that in turn should wake up a hypothetical sleeping MCU?
There exist UART serial Bluetooth radios with an on board MCU, but that MCU has to be powered and awake.
What will be controlling the receiver, that in turn should wake up a hypothetical sleeping MCU?
There exist UART serial Bluetooth radios with an on board MCU, but that MCU has to be powered and awake.
- _phillip
- Posts: 313
- Joined: Fri Apr 09, 2021 3:28 pm
Re: Wake up Arduino board with BLE?
Thanks for your comments.
I am aware that the MCU has to be awake to receive the BLE signal. At the moment I am exploring the use of external interrupts for this purpose.
Thanks.
I am aware that the MCU has to be awake to receive the BLE signal. At the moment I am exploring the use of external interrupts for this purpose.
Thanks.
- sj_remington
- Posts: 1021
- Joined: Mon Jul 27, 2020 4:51 pm
Re: Wake up Arduino board with BLE?
If you were to identify the Arduino and the BLE radio, you could expect some useful suggestions.
Please be positive and constructive with your questions and comments.