Topics

1

TinyDuino Processors & TinyShields / Nordic BLE w/TinyDuino: connection lost on battery power, OK on USB power

« on: March 08, 2017, 09:17:30 AM »

I am using the Nordic BLE shield with the TinyDuino. I've adapted the code in the "NRF8001_Nordic_BLE_Basic_Tutorial" from your website. On the master side, I am using either an iPhone or an iPad with the app "Bluefruit" from Adafruit.  The whole thing essentially works.  I'm generating data on the TinyDuino and successfully sending it over to the iPhone, where I display it.  I can also send data from the iPhone to the TinyDuino and have it react as I have programmed it.  The problem is that when I run the TinyDuino on battery power (disconnected from USB/computer) then the Bluetooth connection is lost within a minute or two.  On USB power, it goes on indefinitely (well, as long as the screen sleep mode is not invoked).