esp-fc

ESP-FC Flight Controller

The mini, DIY, Low cost, ESP32 based, high performance flight controller for hobbyists.

Features

• Espressif targets (ESP32, ESP32-S3)
• ESC protocols (PWM, Oneshot125/42, Multishot, Brushed, Dshot150/300/600 bidirectional)
• PPM, SBUS, IBUS and CRSF Receivers
• Builtin ESP-NOW receiver and WiFi configuration read more…
• SPI and I2C gyro modules support (MPU6050, MPU9250, ICM20602, ICM42688, BMI160)
• Flight modes (ACRO, ANGLE, AIRMODE)
• Frames (Quad X)
• Betaflight configuration tool compatible (v10.10)
• Configurable Gyro Filters (LPF, Dynamic Notches, dTerm, RPM)
• Blackbox recording (OpenLog/OpenLager/Flash)
• Up to 4kHz gyro/loop on ESP32 with SPI gyro
• MSP and CLI protocol interface
• Resorce/Pin mapping
• In flight PID Tuning
• Buzzer, Led and voltage monitor
• Failsafe mode

Documentation

In this repository you can find firmware code that allows you to build your own flight controller. For convenience it mimics Betaflight 4.2 compability, so that it can be configured using betaflight-configurator. Also online blackbox-log-viewer can be used to analyze blackbox logs. In most aspects it is similar to Betaflight, so that many configuration and tuning advices are helpfull here too. But you must be aware, that this software is not the same as Betaflight, there are some limitations and differences in functionality and performance.

• Setup Guide
• Wiring
• CLI Commands
• WIFI and ESP-NOW Receiver

Join our Discord Channel to get help

Quick Start

Requirements

Hardware:

• ESP32 or ESP32-S3 board
• MPU9250 SPI or MPU6050 I2C gyro (GY-88, GY-91, GY-521 or similar)
• PDB with 5V BEC
• Buzzer and some electronic components (optional).

Software:

• Betaflight Configurator (v10.10)
• CH340 usb-serial converter driver

Flashing

1. Download and unpack selected firmware from Releases Page
2. Visit ESP Tool Website
3. Click “Connect” and choose device port in dialog
4. Add firmware file and set Flash Address to 0x00
5. Click “Program”
6. After success power cycle board

Setup

After flashing you need to configure few things first:

1. Configure pinout according to your wiring, especially pin functions, you can find more information in CLI Reference
2. Connect to Betaflight Configurator and setup to your preferences,
3. Test motors without propellers
4. Have fun ;)

Wiring diagrams

Supported Modules

• ESP32 - recommended
• ESP32-S3 - recommended
• ESP32-S2 - experimantal
• ESP32-C3 - experimantal, lack of performance, no FPU
• RP2350 - experimantal, partially works
• RP2040 - experimantal, lack of performance, no FPU
• ESP8266 - obsolete, no longer developed

Supported Sensors and Protocols

• Gyro: MPU6050, MPU6000, MPU6500, MPU9250, ICM20602, ICM42688, BMI160
• Barometers: BMP180, BMP280, SPL06
• Magnetometers: HMC5883, QMC5883, AK8963, QMC5883P
• Receivers: PPM, SBUS, IBUS, CRSF/ELRS
• Esc Protocols: PWM, BRUSHED, ONESHOT125, ONESHOT42, MULTISHOT, DSHOT150, DSHOT300, DSHOT600
• GPS: M8, M9, F9 & M10(dual band, all constellations configurable by cli)
• Other protocols: MSP, CLI, BLACKBOX, ESPNOW

Issues

You can report issues using Github tracker. You can also join our Discord Channel

Development

• Visual Studio Code
• PlatformIO extension
• Git

Todo

• Altitude Hold
• GPS Navigation
• MS5611 barometer
• Balancing robot controller

Licence

This project is distributed under MIT Licence. Bear in mind that:

THE SOFTWARE IS PROVIDED “AS IS”, WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

Donations

If you like this project and you want it to be still developed, you can support me a little.

• BTC: 1Lopez7yPtbyjfLGe892JfheDFJMMt43tW
• LTC: LV3G3sJxz9AYpDMYUp8e1LCmerFYxVY3ak