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by SynonZelra
Sat May 09, 2015 8:46 am
Forum: Beginners
Topic: possibility to charge while using?
Replies: 7
Views: 1013

Re: possibility to charge while using?

There are lots of ways to do this. I like the method we use on the sail boat; its a two batt system with a manual (or electronic) switch-over. Basically, one batt is being used while the other batt is being charged. Both batts are connected to the PI... the batt you're going to charge is switched t...
by SynonZelra
Sat May 09, 2015 5:42 am
Forum: Beginners
Topic: possibility to charge while using?
Replies: 7
Views: 1013

possibility to charge while using?

hi everyone

I'm looking for some IC or board to manage the battery that can charge it while the pi is on.

There are tons of DC-DC charging boards but must be off when charging.
by SynonZelra
Tue Feb 03, 2015 9:42 am
Forum: General discussion
Topic: The Raspberry Pi 2 Q&A thread
Replies: 442
Views: 121742

Re: The Raspberry Pi 2 Q&A thread

some for concerns as follows:

1.we see win10 is on the way, is there any plan on android yet?
2.any further information on DSI TFT?
3.power consumption between the model b+ and pi2?

Thanks
by SynonZelra
Sat Jan 17, 2015 9:47 am
Forum: General discussion
Topic: RPi audio solution discussion
Replies: 8
Views: 2426

Re: RPi audio solution discussion

hi guys. sorry maybe there's misunderstanding. 1. I want a stereo, and I'm also looking for the stereo amp. 2. I'm an amateur, and I love do something on this, but I can't do complicated work now. 3. basically, I have found a connector that automatically disconnect the speaker when you insert the ea...
by SynonZelra
Sat Jan 17, 2015 7:26 am
Forum: General discussion
Topic: RPi audio solution discussion
Replies: 8
Views: 2426

RPi audio solution discussion

Greetings everyone. I'm working on the audio part of my pi. Basically, I wanna the audio part works like an iphone. My Target: 1) built-in speakers, but when the 3.5mm jack inserted, it works on the earphone. 2) buttons to volume up or volume down. 3) a mute button. (optional) My research: a) I find...
by SynonZelra
Tue Jan 13, 2015 6:44 pm
Forum: General discussion
Topic: Building a protable pi
Replies: 11
Views: 1745

Re: Building a protable pi

What size screen do you want? How important is display quality? 2 to 4 inch TFTs on SPI bus GPIO work quite well. There are many cheap 7" 800 x 480 TFT screens around, many with touch, that have HDMI interface boards. They will give a much better picture than the smaller TFTs. Composite video will ...
by SynonZelra
Mon Jan 12, 2015 11:49 am
Forum: General discussion
Topic: Building a protable pi
Replies: 11
Views: 1745

Re: Building a protable pi

Greetings everyone. I'm considering about building a portable pi and I've got two confusions about a screen. 1)I'm told that it you attach a TFT via GPIO, it consumes more power and performace than the HDMI or RCA way because the GPIO driver requires more CPU workload. Pls correct me if this is wro...
by SynonZelra
Sun Jan 11, 2015 5:21 pm
Forum: General discussion
Topic: Building a protable pi
Replies: 11
Views: 1745

Building a protable pi

Greetings everyone. I'm considering about building a portable pi and I've got two confusions about a screen. 1)I'm told that it you attach a TFT via GPIO, it consumes more power and performace than the HDMI or RCA way because the GPIO driver requires more CPU workload. Pls correct me if this is wron...

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