Spanish company Erle produces a full family of DIY drones and devices, like the most interesting controller board, Erle Brains 2.
Erle-Brain 2 is the second generation of Linux-based artificial robotic brain for making robots and drones with official support for the Robot Operating System (ROS) and access to the app store.
|Processor||900MHz quad-core ARM Cortex-A7 CPU, 1GB RAM, VideoCore IV 3D graphics core||I/Os||4 USB ports, Full HDMI port, 10/100 Ethernet, Combined 3.5mm audio jack and composite|
|Sensing||Gravity sensor, gyroscope, digital compass, Pressure sensor and tempertature sensor, ADC for battery sensing||Camera (optional):||5MP Fixed focus lens, 2592 x 1944 pixel static images, supports 1080p30, 720p60 and 640x480p60/90 video record|
|WiFi (optional):||Upgrade your Brain creating a WiFi hotspot using 802.11 ac (even High Gain) dongle.||BlueTooth (optional)||Communicate to your Brain using BT and use game console remote control.|
|Processor||1GHz Allwinner R8 Cortex A8 processor with Mali-400 graphics|
|RAM||512 MB of DDR3 RAM|
|Storage||4 GB Flash|
|Size||40×60 mm (2.3×1.5 inches)|
|I/O||8 digital GPIOs, one PWM pin, SPI, TWI (I2C), UART, USB, CSI, Parallel LCD output, touchpanel input, stereo audio out, mono audio in, composite video out|