Happy to report, that even though the example claims that it does not work on the bela mini, that it does.
You might want to change the comment and remove the line that says it does not work on the mini.
;------------------------------------------------------
; Analog Out + Audio out - Csound on Bela
; * Bernt I. Wærstad, Victor Lazzarini, Alex Hofmann
;
; (Example does not work on Bela-Mini!)
; Connect a LED + a 10K Ohm resistor between GND
; and Analog OUT Pin 0 on your Bela Board.
;
; Starting this example, the LFO signal is used for
; an amplitude modulation of a sine generator (poscil)
; but also send to the AnalogOut of the Bela board, so
; the LED blinks in sync with the sound.
;------------------------------------------------------
<CsoundSynthesizer>
<CsOptions>
-m0d --daemon
</CsOptions>
<CsInstruments>
; Initialize the global variables.
sr = 44100
ksmps = 8
nchnls = 2
0dbfs = 1
instr 1
; LFO