I want to connect BlueDuino Rev 2 with another BLE device connected to an Arduino.
The BlueDuino (firmware 2.1.5) is set to central role, while the other BLE device is set to peripheral.
It connects nicely (I can check from the other device's leds), but I am not able to send any data through transparent UART from BlueDuino to other device.
It is working anyway in the opposite direction, i.e. if I'm sending data from the peripheral device to BlueDuino, it shows up correctly in the serial monitor of BlueDuino.
Both devices are connected to two different computers, with serial monitor on, and both arduinos are loaded with serial passthrough sketches.
Can you please help? I wonder if it's a known bug of the firmware version, I can't find any refernce for 2.1.5