Description:

This board expands the real world that a Raspberry Pi can control, once connected to the Header1 board. You can use Java, C++ or Python languages on the Raspberry Linux, and control up to 32 boards through the dv0_manager free driver and the API library provided. Source code of examples are provided too. IO_A board can be placed up to 25m (27yd) far away from the Raspberry, which is ideal for domotic applications, robotics and even industrial devices.

Features:

• Two Relay outputs
• Four transistor outputs with PWM capabilities
• Three optoisolated digital inputs, with frequency and counting capabilities
• Two analog inputs

DV0 Bus:

The bus implemented is as simple as a RS422 twisted pair, but despite its simplicity, this protocol is quite robust against electromagnetic noise and distance.

Why did we make it?

We design this architecture (that is, Raspberry+Shield Header+Bus) to exceed the boundaries of the Raspbery Pi as a platform for controlling systems, where the real word is far from the central unit. Others shields in the market are suitable for inputs and outputs only if they are close to the Raspberry boar. So, if you need to activate outputs or read sensors that are farther than one meter (1.09yd), use this board together with the Header1.