I am new at learning arduino and currently only have arduino nano spare around so i try to continue TheDIYGuy999 deprecated works.
My main aim is to have sound and light controller for my rc
Any help to fine tune the code really apreciated.
Deprecated project v1.33 of TheDIYGuy999
GitHub repo: https://github.com/TheDIYGuy999/Rc_Engine_Sound
It's based on the mojoEngineSim: https://github.com/BeigeMatchbox/mojoEngineSim
his new ESP32 version: https://github.com/TheDIYGuy999/Rc_Engine_Sound_ESP32
- Many selectable engine sounds and startup sounds for cars and trucks
- Sound files up to 8bit, 16kHz, mono can be used
- Works best with a PAM8403 amplifier module, connected to pin 3, via a 10kOhm potentiometer
- The engine RPM is calculated according to RC signal input on pin 2
- Gear shifting is simulated in "curves.h"
- Use an Arduino Pro Pro 5V, 16MHz
- Light simulation
- Arduino nano / mini / uno
- PAM8403 mini amplifier
- potentiometer 10k
- resistor
- speaker (max 3 watt)
- 2 x 5 mm led white (head lamp)
- 2 x 3 mm led white (reverse lamp)
- 2 x 3 mm led red (stop/brake lamp)
- 4 x 3 mm led yellow (sign/blink lamp)
- Open the "Rc_Engine_Sound.ino" and choose the "settings.h" tab
- select the sound that you want by commenting/uncomment the sound file
- additionaly you can change the Gear shifting in the "curves.h"
- connect the speaker and hardware to:
- Speaker to 3
- receiver/remote Ch1 to 4
- receiver/remote Ch2 to 2
- receiver/remote Ch3 to 6
- brake lamp to A1
- reverse lamp to A2
- head lamp to A3
- Signal left A4
- Signal right A5
- upload the file to your board
- if the light is jittery then change the pulse value in the "Rc_Engine_Sound.ino"
- open the "Rc_Engine_Sound.ino"
- go to "void loop()" choose the ch you want to find the value and uncomment the "Serial.print" and "Serial.println"
- upload and open the serial monitor
- best if you uncomment 1 channel at a time and play with automtic scrolling
- changes the value at //Head Lamp and //signal lamp
- 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
- note, that the files should be as short as possible: around 0.3s for idle and 1s for start
- 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" for the idle file or "start" for the start file
- 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...
