Talpa's homepage

The BTE13-010 is an cheap Arduino Pro Mini 328 clone that is made by Baite.
It is available from different sites among others Aliexpress.com

The board consists of:

ATMEGA328P-MU micro controller
5V regulator circuit, assumed to be max. 100mA with a 7-12V supply
16 MHz crystal
Power LED
GPIO controlled LED on PB5
Reset button and circuit

Compared to the Minimus32 this board has Analog to Digital Converters and I2C bus hardware but it lacks an UBS interface.

Pin out

The BTE13-010 does not exactly match the current Arduino Pro Mini 328 generation with regard to pin location.
(The BTE14-02 seems to be a closer clone in this regard (but still misses the I2C pull up option))

Anyway since my brain hurts when trying to decode Arduino pin out numbering compared to datasheet names I decided that I would create the pin out image below:
pinout

The pin out is base on the following partial retrace of the PCB tracks:
pinout with overlay