Flamethrower

Source code of flamethrower firmware using Arduino Nano

It uses two PWM input to control:

1. Ignition
2. Power of the flame

For more details you can reference to the youtube channel:

https://www.youtube.com/channel/UCf2gzx_wVlQ8WtN4Uq27aKA

Features

1. Support of safety switch. When safety swith is ON, firmare turn off the flame and ignition. Also it skips any input fire signals
2. Support for fire switch

State Diagram

Configuration Variables

Input/output pins

1. PWM_PIN_SAFETY - safety pin number
2. PWM_PIN_INPUT - servo input for controlling flame power pin number
3. OUTPUT_SAFETY - safety highlight diods pin number
4. OUTPUT_PIN_IGNITION - ignition control pin number

Flame and Ignition Variables

1. IGNITION_DELAY - how long ignition should be turned on (milliseconds)
2. IGNITION_SERVO_POSITION - position for the servo when ignition is in progress (degress)
3. FLAME_SERVO_START - start position of servo (usually same as IGNITION_SERVO_POSITION) (degrees)
4. FLAME_SERVO_END - end positions of servo (degrees)
5. FLAME_SERVO_UP_STEP - step of servo for increasing the flame (degrees)
6. FLAME_SERVO_DOWN_STEP - step of servo for decreasing the flame (degrees)
7. FLAME_SERVO_UP_DELAY - how fast to move servo to upper position (milliseconds)
8. FLAME_SERVO_DOWN_DELAY - how fast to move servo to lower position (milliseconds)

TODO

1. Support of lost signal. When there is no signal for 5-10 seconds - turn safety ON, switch off flame