Digistump Forums
The Digispark => Digispark (Original) Support => Topic started by: dagb on September 02, 2012, 01:23:07 pm
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It appears you have left out the 3.3V pin?
How do you intend to drive the rfm12b shield, which requires 2.2V-3.8V?
PWM? Sorry if the answer to this is obvious, I have very little exposure to Arduino so far.
Do you expect our Asian friends to start shipping knockoffs of these by Christmas? :-)
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From the kickstarter:
RFM12B wireless Shield PCB - added 8/27
Note: This shield is experimental, it is known to work with the Digispark and ATTINY85s but may require some tinkering. For that reason we are only offering it as a PCB. It requires the RFM12B Module (https://www.sparkfun.com/products/9582), 3x 10k resistors, 3x 4.7k x resistors, a 10µ capacitor, and a 0.1µ capacitor. It will use 5 pins (leaving 1).
Aren\'t all these resistors and caps enough to regulate the 5v down?
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That would make sense, yes.
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I chose the RFM12B wireless Shield PCB. However, I may not be able to handle it...
When I want to build wireless network in Digispark, do I need two RFM12B wireless Shield PCB?
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You\'ll need two modules to communicate between two Digisparks, or a module hooked to another device.
Re 3.3V - The kickstarter info is outdated at this point, we\'ve updated the board to include a 3.3V regulator as well, since the Digispark board does not have 3.3v on it.