I think this might be an XY problem. What I have understood is that you want to send a button press from the micro:bit to the RPi via Bluetooth Low Energy (BLE). If that is the case, then there is a more efficient way to do this. In the Bluetooth Profile for the micro:bit there … Read more
If I’m not getting it wrong, you’re defining your GPIO pin correctly but you’re never toggling it high and low. To be able to drive the DE/~RE signal on your RS485 chip you should take the GPIO high before you write on the bus and low right after to be able to read the answer … Read more
Linux (Ubuntu) What’s in? GNU Screen Minicom minicom one-line-command (short answer) minicom UI (long answer, detailed) GNU Screen Run in terminal sudo screen port_name 115200 See below (step 2) to find out port_name, e.g /dev/ttyUSB0. Hit Ctrl-A, then K, then Y to exit screen. Execute sudo apt-get install screen if not installed. Minicom Short answer … Read more
The data received in your serialPort1_DataReceived method is coming from another thread context than the UI thread, and that’s the reason you see this error. To remedy this, you will have to use a dispatcher as descibed in the MSDN article: How to: Make Thread-Safe Calls to Windows Forms Controls So instead of setting the … Read more