Is it mandatory to have the RTS connected to DTR in order to see the output on a terminal?
The reason I’m asking is that my programmer doesn’t have a RTS pin and I want to be sure that connecting Tx/Rx and GND is enough for the task.
No, all you need connected to just read the serial output is the Rx and ground, to then write to the serial port you will also need Tx connected and in addition to that you will need to connect the reset line only if you are uploading new firmware.
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Hi Liviu, You have a faulty emonTH board; I’m very sorry about that. Could you please email the shop the shop or PM me with your order details and we will get a replacement sent out to you as soon as possible. Is it just the one emonTH that is faulty, or both?
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Connected the programmer, Tx/Rx/GND, power cycled the board and there is no output on a terminal @115200.
It seems the board is dead.
Thank you for your help in troubleshooting this issue.