By kenneth22
#4843
Hi can bluno be put into low power mode?

how do i do that and when it wakes up will how long will the blue tooth wakes up

is it possible to maintain the bluetooth connection with andriod but in low power mode?

By Grey.CC
#4844
Hello Kenneth,

I am sorry, it doesn't support low-power-consumption mode now.
What do you want to do with this mode?
By kenneth22
#4845
Hi Grey,

I am doing a battery power device . when i leave the device on with a 9V battry it will drain to only 7V in 2 hours . to fast . The Bluno is connected to a sensor that will read when the connected device trigger its . So i want to put the bluno to sleep or low power mode until a trigger by the user which can be a UART operation complete sending some data to the device.  How can i do that . do you know what is the power rating of the bluno when it is paired and connected to a andriod phone?
By Grey.CC
#4848
Hello Kenneth,

It is hard to describe its power consumption. You know Bluno is not only a wireless chip, but also a micro controller. Its power consumption depends on the load, the other device on the board. What is your battery type  and capacity?
By kenneth22
#4849
Its lithium ion 2300 mha . i want it to last for a week as it will only update somestuff when it is triggered. Is it possible to put the bluetooth radio to sleep and wake on interrupt or when there is a UART activities? I wanted to know if i can talk to the chip directly


By Grey.CC
#4850
Hello Kenneth,

I got a way to disconnect the BLE connection via AT command. It could save the power consumption in this way.
AT+FSM=FSM_USB_COM                                    //Disable BLE connection
AT+FSM=FSM_TRANS_USB_COM_BLE                //Enable BLE connection
You could let arduino input AT command to disconnect/connect BLE to save power.
By Grey.CC
#4852
Using code like this "Serial.write("+++");" to enter the AT mode,
And input the switch AT command, when it need. "Serial.println("xxxxxxxxxxxxx");".

BY the way, don't forget to exit AT mode.