Hi Ben,

thanks for your prompt reply. Indeed having a faster charge rate woudn't be a bad idea, provided that it's safe to do that. It would be great if you could provide more details on how to replace/hack the resistor.

Thanks again

Nando

Hi guys, I am looking for solutions where I can use as much stored energy as possible for long lasting operations (involving actuators). I came across the li-ion batteries sold by Adafruit (similar to many others). On here http://www.adafruit.com/product/2011 they advise to use their Micro Lipo charger, able to provide a 100mA default rate. Is the TinyDuino version supporting li-ion batteries able to do the same? In other words, how long would it take for the TinyDuino to recharge a 2000mAh battery?

Thanks very much

Hi Ken, thanks very much for your reply. Now it's all much clearer. So, if I understand correctly, to power up 4 DC motors and use I2C I need the processor board, a prototyping board (any would do for I2C) and the motor shield. The USB/ICP one can be removed after flashing up the code and powering down the system, can't it? (assuming I don't need to change the control software any longer).
Thanks again.

Hi guys,

just discovered the TinyDuino, its "family" :-)  and all the wonders you can do with them. And joined the forum. A couple of months ago I started playing with Arduino (Mega2560 more precisely), BeagleBoard, connecting them together and eventually building a small robot platform driven by a mini wireless keyboard. Nothing exceptional, just an extensive exercise to get familiar with the two boards. The two boards are connected and communicating to each other by I2C through a level shifter. The main reason for that is you can fit lots of sensors with not so much wiring. Now of course my interest is in how small I can go with the electronics. At least on the Arduino side. Hence the TinyDuino. I tried to find out more precise technical details if the I2C interface is implemented on TinyDuino in the same way as its larger counterpart or (more probably) on any of its shields but I can't find any data sheet or equivalent document reporting this kind of info (apart from some mention on the Accelerometer and GPS ?).

I just read from http://forum.tiny-circuits.com/index.php?topic=64.msg159#msg159 that proper technical information on all products will be provided in the future, but in the meantime it would be nice to know if and how I can at least start experimenting with some I2C connectivity.

Many thanks and keep up with the good work ;-)