Hello FC community, I just got my standalone (non-smartphone) digital camera working and took some pictures of one of those ultra-compact power adapters I keep talking about:
https://www.freecalypso.org/members/falcon/pictures/PSU/ I have a total of 10 of these adapters currently, and given that I need to save a few for my own use, my ability to sell them will be quite limited unless I can get more of them. I just sent an email to Kingdatron (the apparent manufacturer), inquiring if they can make a new batch or if they have any existing stock they can sell. These ultra-compact AC to 3.6 VDC adapters (the adapter brick measures only 93x49x35 mm) are the most convenient way to power an FCDEV3B board when it is used for its primary intended purpose of FreeCalypso development or general GSM tinkering, as opposed to integration as a component into some larger system. When I work with FCDEV3B boards myself, this is the power supply I use most of the time. Of course I also have a "traditional" bench power supply with a voltage tuning knob and an ammeter display (much much bigger and heavier than these little adapters), and I use this heavy-duty bench PSU when I need to test operation at different voltages or see the current draw, but for most usage scenarios the ultra-compact 3.6 VDC adapters are my power supply of choice. Of course at some point we are going to need to test truly mobile operation with cell reselection, location updates and handovers, at which point the FCDEV3B will need to be powered from a battery, controlled by a laptop that also runs on its battery. That setup would involve an ad hoc battery equipped with a Weidmuller connector for the FCDEV3B, along with an equally ad hoc external charger for it. But for stationary operation in a typical development environment a battery-less power arrangement that ultimately comes from AC mains is the most convenient. M~ _______________________________________________ Community mailing list Community@freecalypso.org https://www.freecalypso.org/mailman/listinfo/community
