Mini5+ BT dongle for transmit.

[droftarts]

@tecno said in Mini5+ BT dongle for transmit.:

3.3V is not present on IO_1 pin 3.3V_ext.

Do you have 3.3V on your other IO ports? If so, check the soldering on the 3.3V pin of IO_1. 3.3V_EXT is supplied direct to all of these pins and the PanelDue port. It looks like you're not using any of the 3.3V on the other IO connectors currently.

If not, check U10 (by the TEMP_DB connector) and associated components, which is the 3.3V regulator that supplies 3.3V_EXT.

Schematic: https://raw.githubusercontent.com/Duet3D/Duet3-Mini5plus/main/v1.01/Duet3_5%2B_Wifi_schematic_v1.01.pdf

Ian