Hi,
I have been trying to use my Sparrow to send a note over I2C with the Notecard WiFi, but I keep getting brownout messages after having first sync, as shown below.
{“why”:“first sync; continuous connection mode; periodic inbound sync due (TLS)”}
{“text”:“boot (brown-out & hard reset [16518])”,“voltage”:4.9609375}
This error was repeated for every setup described below.
I have tried multiple setups including, USB power only, USB power with LiPo connected, Power Supply to V+ pins with EN set high, and Power Supply to V+ pins with EN set high and LiPo connected.
Each one resulted in a brown-out, the Sparrow is connected through the Qwiic connector to the Notecarrier, and I have attached the firmware code I am running on it below.
I am also attaching a picture of the setup I have when using the power supply to power the Notecarrier.
Note: I have followed all instructions from the quickstart involving the DIP switches and the Sparrow is being powered by the Notecarrier.
Here is the firmware code - https://gist.github.com/nair-arjun/abecb59ae024f56b6264db46a049fd3a
I would appreciate any help as I am a beginner and currently learning my way around embedded systems and the blues family.
Best,
Arjun