Trying to make low cost Atmega328 based Flight Controller with necessary features. Testing on: ZOHD Drift and Wing Features: PPM, GPS, Failsafe, Manual mode, Stable mode, Return to home, OSD Tools used: Arduino IDE, KiCad.

NoahFC

• Trying to make low cost Atmega328 based Flight Controller with necessary features.

Testing on

• [X] ZOHD Drift
• [~] Wing

Features

• [X] PPM
• [X] GPS
• [~] Failsafe
• [X] Manual mode
• [X] Stable mode
• [~] Return to home
• [X] OSD

Used Pins

Arduino	Component	Arduino	Component
D0	UART RX	D9	Alerons
D1	UART TX	D10	SS (OSD)
D2	GPS RX (interrupt)	D11	MOSI (OSD)
D3	PPM Input (interrupt)	D12	MISO (OSD)
D4	LED MODE	D13	SCK (OSD)
D5	Throttle	SDA	MPU6050
D6	Elevator	SCL	MPU6050
D7	LED GPS	RST	DTR
D8	GPS TX

Transmitter setup

Channel	Info
CH1	Elevator
CH2	Alerons
CH3	Throttle
CH4	N/A
CH5	Modes

Modes

Channel 5 should be 3-position switch

• Min [Manual]
• Mid [Stable]
• Max [RTH]

Leds

• Blue blink when GPS signal received
• Yellow lights when is in stable / rth mode

Firmware

Sketch uses 23196 bytes (75%) of program storage space. Maximum is 30720 bytes. Global variables use 1077 bytes (52%) of dynamic memory, leaving 971 bytes for local variables. Maximum is 2048 bytes.

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