We will show you basics to use MewPro 2 for controlling GoPro Hero 3+ Black camera.
The post involves no external sensors.
UPDATE 25 Feb. 2017: Hero 4s are now supported: Please refer this post.
Prerequisites
In order to use MewPro 2 as a GoPro controller you need the following hardwares:
- GoPro Hero 3+ Black
- No previous editions work with MewPro 2.
- MewPro 2
- MewPro 2 is ready to use without soldering.
- Arduino Pro Mini Temporary FTDI Header
- If you buy a MewPro 2 from our shop the header is included in the package.
- Sparkfun FTDI Basic Breakout – 3.3V and USB cable
- Use 3.3V version of the breakout board. Any compatible board should work.
Softwares:
MewPro 2 is shipped with optiboot as well as MewPro software (for genlock) installed. But if you like to modify/update the software you will need to prepare the following IDE, core and library. To install each software please refer their documentations.
- Arduino IDE 1.6.5 or newer
- Older versions of Arduino IDE might work but we don’t confirm that.
- ATTiny Core
- 1634, x313, x4, x41, x5, x61, x7, x8 and 828 for Arduino 1.6.x
- WireS library
- Slave only hardware Wire library for ATtiny1634 microcontroller.
Lastly grab the MewPro application:
- MewPro Application
- This is an open source software (MIT license). You can modify and distribute it as you like.
Connection
On your PC launch Arduino IDE that was installed as described in the above. In Arduino IDE [File]→[Open...]→ then open MewPro.ino.
Remark: MewPro.ino contains the following files as tabs; a_Queue.ino, b_TimeAlarms.ino, c_I2C.ino, d_BacpacCommands.ino, e_Shutter.ino, f_Switch.ino,g_IRremote.ino, h_LightSensor.ino, i_PIRsensor.ino, j_VideoMotionDetect.ino, and k_Genlock.ino. If you like to see what will be happen inside of your ATtiny1634 you could read any of them.
Connect MewPro 2
to your PC w/ FTDI board and the temporary header.
Connecting FTDI please refer the pinout image below:
Then connect them to GoPro Hero 3+ Black.
In Arduino IDE application, select [Tools]→[Board]→[ATTiny1634 (optiboot)] and [Tools]→[Port]→[(the port where you connected the FTDI cable)]. (B.O.D. and Clock settings are “don’t care” as these values are only effective when you burn a bootloader to the microcontroller by using an ISP programmer.)
The MewPro source code is originally targeted to MewPro 1, Arduino Pro Mini, so please change the following lines in MewPro.ino from
#include <Wire.h> // *** please comment out this line if __MK20DX256__ or __MK20DX128__ or __MKL26Z64__ or __AVR_ATtiny1634__ is defined ***
#if BUFFER_LENGTH < 64
#error Please modify Arduino Wire library source code to increase the I2C buffer size
#endif
//
// Teensy 3.0 or 3.1 or LC
//#include <i2c_t3.h> // *** please comment out this line if __MK20DX256__ and __MK20DX128__ and __MKL26Z64__ are not defined ***
//
// ATtiny1634 core https://github.com/SpenceKonde/arduino-tiny-841
// WireS library is downloadable from https://github.com/orangkucing/WireS
//#include <WireS.h> // *** please comment out this line if __AVR_ATtiny1634__ is not defined ***
to
//#include <Wire.h> // *** please comment out this line if __MK20DX256__ or __MK20DX128__ or __MKL26Z64__ or __AVR_ATtiny1634__ is defined ***
//#if BUFFER_LENGTH < 64
//#error Please modify Arduino Wire library source code to increase the I2C buffer size
//#endif
//
// Teensy 3.0 or 3.1 or LC
//#include <i2c_t3.h> // *** please comment out this line if __MK20DX256__ and __MK20DX128__ and __MKL26Z64__ are not defined ***
//
// ATtiny1634 core https://github.com/SpenceKonde/arduino-tiny-841
// WireS library is downloadable from https://github.com/orangkucing/WireS
#include <WireS.h> // *** please comment out this line if __AVR_ATtiny1634__ is not defined ***
that is, to use the WireS library instead of the standard Wire library.
The code should now be compiled successfully.
“Verify” the MewPro sketch and “Upload” it to MewPro 2 board.
Remark: If you are using MewPro 2 board for genlocking, please modify MewPro.ino as
boolean debug = false;
#define USE_GENLOCKand for MewPro #0 in double dongle configuration
#define UART_RECEIVER_DISABLEControl GoPro
Controlling details through Arduino console is the same as MewPro 1.
Resources
- How To Use MewPro Genlock Dongle (only if you are interested in genlock)
- Purchase MewPro 2
- Schematic Drawing
- Arduino Source Code
- List of GoPro Serial Commands
- Herobus Pinout of GoPro Hero 3+ Black