ServoBerry V 1.0 is an extension board for Raspberry Pi derived from the shield Adafruit 16-Channel Servo Driver, and it is an Open Hardware Design. It has two functionalities: a PWM led/motor driver IC and an ADC. Dedicated to robotics projects
Canberry V 2.1
CanBerry Pi V 2.1 is an extension board for RaspBerry Pi. It is an Open Hardware Design. It has two functionalities: a can bus module and an onboard Real Time clock powered by a 12 mm battery. The CanBus is based on MCP2515 SPI controller and the MCP2551 tranceiver for normal Can Bus, or a ISO1050 to isolate the bus. The new transceiver is placed into an isolated galvanic area. All functionalities are full integrated in standard linux kernel, so, they can be avaible on fly, or at last recompiling linux kernel to add canbus functionalities. The real time clock is based on DS3231 with internal oscillator I2C controller. It is full compatible with linux too. Using I2C Kernel module, and standard kernel functions, date and hour can be set/get by simple commands. On the bottom side is located an on board battery to guarantee a data autonomy more than 20 years. In chapter hardware there are all informations on principal components, schematics to rebuild and modify RaspBerry PI board. The new board is desaigned with the Raspberry Hat specification. There are four fixing holes and the hardware identification EEPROM (Blank Memory not mounted).
This board contains four switch relay 1 Form C, 2 ADC IN 0-10V and 2 ADC IN 4-20mA. The connection with Raspberry PI is made with a classical USB-UART converter FT232RL (FTDI Chip) compatible with the kernel, the USB connector provides also the power supply.
This choice make the device usefull also in non-linux based board too.