Pivore

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Pivore

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My first robot is a fairly simple 2WD photovore with a Raspberry Pi for the brains. I really liked that I could program a simple robot in my favorite high-level language, Python! I also posted the code on GitHub: https://github.com/anseljh/pivore The Pivore has two photocells mounted up front on some tiny boards I soldered together, which are hooked up to an analog/digital converter (MCP3008). Motors are driven by the usual L293D, with an I/O expander (MCP23008) in between. There is a bumper ...

Pivore
Pivore

My first robot is a fairly simple 2WD photovore with a Raspberry Pi for the brains. I really liked that I could program a simple robot in my favorite high-level language, Python!

I also posted the code on GitHub: https://github.com/anseljh/pivore

The Pivore has two photocells mounted up front on some tiny boards I soldered together, which are hooked up to an analog/digital converter (MCP3008). Motors are driven by the usual L293D, with an I/O expander (MCP23008) in between. There is a bumper switch in front for when it runs into stuff. Of course there are also some blinky LEDs!

One challenge I ran into is varying the speeds of the two motors. Unfortunately, the Pi has only one PWM output, so I'll have to do something different, like:

using Picaxes to drive the PWMs: https://www.robotshop.com/letsmakerobots/node/36745
software PWM: https://www.robotshop.com/letsmakerobots/node/36745

I'll figure that out for bot #2!

Roams around looking for light

CPU: Raspberry Pi
Operating system: Occidentalis v.02
Programming language: Python
Sensors / input devices: Photoresistors, bumper switches

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Pivore

Pivore

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