RE: Trying to setup a uart connection between nodemcu and nrf52832

Karl Ylvisaker — Wed, 15 Apr 2020 14:49:09 GMT

Hello,

Sorry for the late reply, there was just a public holiday here in Norway.

Now, to your issue - you are unable to establish UART communication between your nRF52832 and your NodeMCU.

First, could you tell me if you are working on a custom board with the nRF52832, or are you using a development kit or dongle? Could you also describe your hardware connection between the two devices? Which pins have you connected where?
It would also be beneficial if you could elaborate more on what you are seeing: You say that you are not able to establish a connection, what does this mean; Is there nothing happening on the nRF TX pin while the application is running? Does the NodeMCU receive anything at all?
A great way to eliminate some of these possibilities is to test the UART example according to the documentation, to verify whether the communication is happening at all. This way, you can isolate the problem to either the nRF or the NodeMCU.

Your code looks alright, as it essentially is the UART peripheral example, so I would not expect that this is where it goes wrong.

Looking forward to solving this issue together!

Best regards,
Karl