alfredbroda / rc_engine_sound Goto Github PK

#This is an Arduino engine sound generator. It's based on the mojoEngineSim: https://github.com/BeigeMatchbox/mojoEngineSim

GitHub repo: https://github.com/TheDIYGuy999/Rc_Engine_Sound

• Selectable engine sound
• Sound files up to 8bit, 16kHz, mono can be used
• works best with a PAM8403 amplifier module

• Runs on an ATMega328 with 8 or 16MHz clock (RC PWM throttle mode only on 16MHz)
• More engine sounds added

• Engine sound is switched off, if there is no PWM signal detected on Pin 2. Works together with my "Micro RC" receiver.

• PWM throttle range now adjustable in settings.h

• Engine startup sound from Ural 357D
• TTL output for smoke generators etc.
• Removed all SPI functions to fit new sounds

• Import the sound file you want in Audacity
• Convert it to mono, if needed
• on the bottom left, select project frequency 16000kHz
• cut the sound to one engine cycle. Zoom in to find the exact zero crossing
• adjust the volume, so that the entire range is used
• select > export audio > WAV > 8-bit-PCM

• download it from: https://github.com/olleolleolle/wav2c
• compile it in terminal with the following steps:
• type "gcc" and space
• drag and drop the files "main.c", wavdata.h", wavdata.c" into the terminal window.
• press enter -> the executable is then compiled and stored as "youruserdirectory/a.out

• copy an existing "enginesound.h" file, rename it with your new engine name
• drag and drop "a.out" into your terminal
• drag and drop the exported WAV file into your terminal
• drag and drop your copied "enginesound.h" file into your terminal
• type "idle"
• press enter -> the "enginesound.h" file is now overwritten with the new sound data.
• uncomment the line "sampleRate"
• change "signed char" to "unsigned char"
• include this file in "settings.h"

• compile and upload the sketch in Arduino IDE
• the new engine should now run...

2017, TheDIYGuy999