Ala Mode: Arduino Compatible for Raspberry Pi

We've gotten our first prototypes back and they are working well.

There's a complete writeup on my blog:

http://baldwisdom.com/introducing-raspb ... a-la-mode/

Flexible power. Can be powered directly from the Pi, standalone with a battery or wall-wart, or USB power. This is important if your shield takes more power than the Pi can provide or if you want to undock it for standalone operation.

Programmable via the Pi’s UART on the GPIO pins, or an FTDI USB-Serial adapter or ISP.

Header for connecting Fastrax UP501 GPS.

DS3234 Real time Clock. The Pi doesn’t have it’s own battery backed RTC. You can set a program in the AlaMode to report the time to the Pi via serial or I2C

Micro-SD card slot. Useful for datalogging, and big-memory for your Arduino applications

Row of Servo Headers connected to the PWM pins with a configurable power and ground rail

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Robert Peter Oakes over 12 years ago

an alternative to using a real time clock on the pi is to simply time sync with an NTP (Network Time Server) either at power up or at regular intervals once powered up, this is normally done by default and if not then this may help to configure it
h ttp://raspberrypi.stackexchange.com/questions/8231/how-to-force-ntpd-to-update-date-time-after-boot

If your running off line from the internet then of course adding one will help http://www.instructables.com/id/How-to-add-a-Real-time-clock-to-the-Raspberry-Pi-o/describes one such implementation, Google raspberry PI RTC for plenty of examples

regards

Peter
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Robert Peter Oakes over 12 years ago

an alternative to using a real time clock on the pi is to simply time sync with an NTP (Network Time Server) either at power up or at regular intervals once powered up, this is normally done by default and if not then this may help to configure it
h ttp://raspberrypi.stackexchange.com/questions/8231/how-to-force-ntpd-to-update-date-time-after-boot

If your running off line from the internet then of course adding one will help http://www.instructables.com/id/How-to-add-a-Real-time-clock-to-the-Raspberry-Pi-o/describes one such implementation, Google raspberry PI RTC for plenty of examples

regards

Peter
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