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bluerange-io / bluerange-mesh

BlueRange Mesh (formerly FruityMesh) - The first completely connection-based open source mesh on top of Bluetooth Low Energy (4.1/5.0 or higher)
https://bluerange.io/
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UART doenst work when i use a battery instead of microusb #76

Closed xiamaiani closed 7 years ago

xiamaiani commented 7 years ago

Hello,

I am using UART, but when I use a battery instead of the microusb my aurt doenst work anymore. It only works when i connect the nrf52 dk to a computer. I am using pin 6 and 8 with a rs232 cable. I am using the right COM port to read the data. Any idea what the issue might be? Some init only when SEGGER is active?

Informatic commented 7 years ago

Keep in mind UART by default uses hardware flow control as well as normal RX/TX pins, so in the end you need 4 pins.

You should be able to disable hardware flow control (HWFC) if you really need to here: https://github.com/mwaylabs/fruitymesh/blob/master/src/utility/Terminal.cpp#L262

I haven't really tested it myself. I think SoftDevice may cause some tiny issues when transmitting/receiving data on UART without HWFC.

xiamaiani commented 7 years ago

Thank you very much, You are a lifesaver. It works great now.