MiniQuadCopter 

  * open 3D frame
  * open hardware flight computer with pluggable parts
  * open source flight firmware 

(inspired by the Estes Proto X and the CrazyFlie)

Features:
  * basic quadcopter flight
  * telemetry
  * ground commands
  * autonomous operation

## Parts
  * frame
    * 3D printed: Fuselage, Motor Arms, Motor Mounts $5 guess
    * 230mm ($22) [[http://www.hobbyking.com/hobbyking/store/__61390__Laser230_FPV_Quadcopter_Composite_Kit_230mm_.html|Hobbyking]]
  * Flight Controller
    * PlugCopter Flight Computer ($20)
    * KK-Mini atmega 644PA 64k flash, 4k ram [[http://www.hobbyking.com/hobbyking/store/__56392__HobbyKing_174_KK_Mini_Multi_Rotor_Flight_Control_Board_36x36mm_30_5x30_5mm_.html?utm_campaign=140827.USE&utm_content=1488796016&utm_medium=email&utm_source=EDM|HobbyKing]] ($25 w/ 6050MPU)
    * OpenPilot CC3D ($14) [[http://www.banggood.com/OpenPilot-CC3D-Flight-Controller-STM32-32-bit-Flexiport-p-937044.html|BangGood]]
  * motors
    * 7mm generic ($21 for 4, ebay)
    * brushless ZMR1804 ($9/ea, $36)
      * [[http://www.banggood.com/ZMR-1804-2400KV-Micro-Size-Integration-Outrunner-Brushless-Motor-p-923424.html|BangGood]]
      * [[https://www.youtube.com/watch?v=9emHiQ4as4w|YouTube Review]]
    * RCX 1804 w/ ESC ($14) [[http://www.banggood.com/SimonK-10A-ESCRCX-1804-2400KV-Motor-Gemfan-5030-Propeller-For-QAV250-p-937534.html|BangGood]]
  * Accelerometer board 
    * MPU-6050 $2 [[http://www.banggood.com/Electronic-Compass-Module-Three-Axis-Magneto-Resistive-Sensor-p-926151.html|BangGood]]
  * Wifi board 
    * ESP8266 ($3) ebay
  * Sonar board 
    * Generic $3 [[http://www.ebay.com/itm/HC-SR04-Scheda-Sensore-Ultrasuoni-Sonar-Sensori-di-Distanza-Arduino-/261576743635|ebay]]
  * Power
    * 3.3v regulator ($6) 0.5amp https://www.pololu.com/product/2122
    * Lipo2S to 3.3v ($4) 3.5amp [[http://www.hobbyking.com/hobbyking/store/__56565__X3_PRO_3_3V_3_5A_UBEC_2_5S_Lipoly_7_2_21v_.html|HobbyKing]]
    * Lipo2S to 5v ($5) 3amp [[http://www.hobbyking.com/hobbyking/store/__4319__TURNIGY_3A_UBEC_w_Noise_Reduction.html|HobbyKing]]

Total: $5 3d frame + $20 plug FC + $14x4 motors+esc + $2 6050 + $2 ESP8266 + $5 5v reg = $90

## PlugCopter Flight Computer Motherboard

An OSHPark pcboard using through-hole tech to be heart of the copter.

  * 2"x1" OshPark PCBoard $3
  * Teensy-LC $11
  * 3.3v reg $2
  * LEDs $2

Power lines
  * Lipo
  * Batt charger
  * Power regulator
  * Teensy LC
  * ESP8266
  * MPU 6050
  * Speed controller(x4)
  * Sonar

Data
  * Teensy - MPU6050 = I2C
  * Teensy - ESP8266 = Serial
  * Teensy - ESC = AnalogOut
  * Teensy - Sonar = AnalogIn

Circuit layout app: KiCad

Board: https://github.com/donpdonp/protoh

Mockup: http://i.donp.org/i1zz.jpg


## Kit parts
  * Teensy LC primary processor ($11) [[http://www.pjrc.com/teensy/teensyLC.html|PJRC]]
  * LD1117V33 Low Drop Out Regulator by ST, 3.3V, TO-220
  * LEDs x 4

## Names
  * ProtoH
  * PlugCopter (2015 Apr)
  * SocketCopter