Accessory use holtek MCU HT45F23A development of voice-type smoke detectors in the source code, to be completed by the smoke of fire alarm and voice playback. Annex contains the corresponding circuit, provided for your reference

FlashSST25VF1605-Subroutine.asm
HT45F23.inc
HT45F23A.inc
INIT.ASM
Interrupt.asm
key-1.asm
macro.asm
MAIN.ASM
MAIN.LST
MAIN.OBJ
OPA1OPA2-CAL.ASM
PlayVoice.asm
PLAYVOICE.LST
PLAYVOICE.OBJ
ram.asm
ram1.asm
subroutine-1.asm
TEST DAC.bin
TEST DAC.DBG
TEST DAC.MTP
TEST DAC.pjtx
TEST DAC.SPC
TEST DAC.CV
TEST DAC.OPT
TEST DAC.pjt
TEST DAC.pjw
TEST DAC.PRJ
TEST DAC.TSK
CLOSEALL.ASM
DAC.tmp
HT45F23A-VOICE.pdf

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