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TinyDuino Processors & TinyShields / TinyDuino doesn't boot up when UART connected
« on: January 05, 2017, 05:51:28 PM »
My TinyDuino setup does not boot up correctly when connected via pins RX/TX/GND to an ESP8266 board. It prints a few lines of setup, resets, and does the same thing again and again. Unplugging the ESP board at this point does not allow it to boot up correctly. This behaviour continues until I switch the Arduino off and on again.
Also, when the TinyDuino power switch is set to OFF and I am viewing the serial monitor, while the ESP8266 board is connected I can see that the Arduino is repeatedly printing the first few characters of its setup message as if it is starting to boot up EVEN THOUGH IT IS SUPPOSED TO BE OFF.
If the Arduino boots up while not connected to the ESP board it can be plugged in and then functions properly (at least for a while). However, constant unplugging is an issue while I'm debugging.
Has anyone experienced this before or know what is going on?
Also, when the TinyDuino power switch is set to OFF and I am viewing the serial monitor, while the ESP8266 board is connected I can see that the Arduino is repeatedly printing the first few characters of its setup message as if it is starting to boot up EVEN THOUGH IT IS SUPPOSED TO BE OFF.
If the Arduino boots up while not connected to the ESP board it can be plugged in and then functions properly (at least for a while). However, constant unplugging is an issue while I'm debugging.
Has anyone experienced this before or know what is going on?