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Topic: I just bought this, and you what did you buy ? (Read 173254 times) previous topic - next topic

Re: I just bought this, and you what did you buy ?

Reply #90 –
[quote author="dolabra"]
Did you buy a charger?  How are you going to charge them?
I made one, but I'm not going to post it.  It's a real dangerous prototype![/quote]

yes I bought  a cheap $8 China charger ,  who seems to works fine too :-)
batteries are what they call 18650, bigger than AA standard but seems to have alot more power ,
at least 3 times my best NiMH ! 
:-)

Re: I just bought this, and you what did you buy ?

Reply #91 –
Just got the following from eBay

5x 74hc595.
5x W04 bridge rectifier.
1x Panel voltmeter.

What did you buy?
[attachment=0]
Still learning
-Arup

Re: I just bought this, and you what did you buy ?

Reply #92 –
An Asus WL520GU for $25. Now flashed with Tomato with a serial connector *very* badly soldered on and a USB sound card stuck in its rear, awaiting further tampering, but in the mean time giving my laptop speedier internet.

Re: I just bought this, and you what did you buy ?

Reply #93 –
Last week I received a Stellaris Launchpad and some raspberries!

[attachment=1]
[attachment=0]

Re: I just bought this, and you what did you buy ?

Reply #94 –
A couple of hundreds of 0.1% and 1% resistors for my 7400 Logic Competition entry....

[attachment=0]

Re: I just bought this, and you what did you buy ?

Reply #95 –
What is this? Element14 started with silvercolor antistatic bags, then started using pink tea bags, and now transparent white pouches? Are they antistatic?
Still learning
-Arup

Re: I just bought this, and you what did you buy ?

Reply #96 –
They are cutting cost. Only silicon based parts are packed in the silver antistatic bags. Remaining passive parts comes in the clear bags

Re: I just bought this, and you what did you buy ?

Reply #97 –
[quote author="dolabra"]

Did you buy a charger?  How are you going to charge them?

I made one, but I'm not going to post it.  It's a real dangerous prototype![/quote]
You can manually charged them with a bench psu using the CC?CV method. I salvaged a couple of sanyos from a good laptop battery

Re: I just bought this, and you what did you buy ?

Reply #98 –
[quote author="arupbsk"]What is this? Element14 started with silvercolor antistatic bags, then started using pink tea bags, and now transparent white pouches? Are they antistatic?[/quote]

http://www.youtube.com/watch?v=imdtXcnywb8

Re: I just bought this, and you what did you buy ?

Reply #99 –
[quote author="gelbanana"][quote author="dolabra"]

Did you buy a charger?  How are you going to charge them?

I made one, but I'm not going to post it.  It's a real dangerous prototype![/quote]
You can manually charged them with a bench psu using the CC?CV method. I salvaged a couple of sanyos from a good laptop battery[/quote]

I wasn't going to suggest that....... does your supply auto switch from CC to CV?  If those batts burn, I don't think that plastic tray will save you!  RC guys charge in fire-proof boxes.  I never leave them unattended.  I have heard too many stories of people who left them and went out only to come home to fire damage.

Re: I just bought this, and you what did you buy ?

Reply #100 –
[quote author="garyservin"]Last week I received a Stellaris Launchpad and some raspberries!
[attachment=1]
[/quote]

This is alot of Raspberries  Pi :o)  I will order one soon i think :-)

Re: I just bought this, and you what did you buy ?

Reply #101 –
[quote author="dolabra"][quote author="gelbanana"][quote author="dolabra"]

Did you buy a charger?  How are you going to charge them?

I made one, but I'm not going to post it.  It's a real dangerous prototype![/quote]
You can manually charged them with a bench psu using the CC?CV method. I salvaged a couple of sanyos from a good laptop battery[/quote]

I wasn't going to suggest that....... does your supply auto switch from CC to CV?  If those batts burn, I don't think that plastic tray will save you!  RC guys charge in fire-proof boxes.  I never leave them unattended.  I have heard too many stories of people who left them and went out only to come home to fire damage.[/quote]

I got one like this one, i hope it will do a good charging job (correct CC CV curve/switch) ... i might take some measurements of theses parameters ...  (i only own a  crap pc hack power supply,  no current control, so no good)  ...

http://http://www.ebay.ca/itm/280896465537?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649

Re: I just bought this, and you what did you buy ?

Reply #102 –
[quote author="voidptr"][quote author="garyservin"]Last week I received a Stellaris Launchpad and some raspberries!
[attachment=1]
[/quote]

This is alot of Raspberries  Pi :o)  I will order one soon i think :-)[/quote]

I ordered one ages ago, it has yet to turn up. So I've given up on it.
Just ordered a Beaglebone - it will be interesting to see how long that takes to arrive...

Re: I just bought this, and you what did you buy ?

Reply #103 –
500 0603 red led $9.99

I'm going to build a charliplexed matrix with 110 of them when I get bored and feel like soldering that many 0603s.  I better eat my carrots in the mean time --- they are good for the eyes you know.

Re: I just bought this, and you what did you buy ?

Reply #104 –
[quote author="voidptr"][quote author="dolabra"]
I wasn't going to suggest that....... does your supply auto switch from CC to CV?  If those batts burn, I don't think that plastic tray will save you!  RC guys charge in fire-proof boxes.  I never leave them unattended.  I have heard too many stories of people who left them and went out only to come home to fire damage.[/quote]

I got one like this one, i hope it will do a good charging job (correct CC CV curve/switch) ... i might take some measurements of theses parameters ...  (i only own a  crap pc hack power supply,  no current control, so no good)  ...

http://http://www.ebay.ca/itm/280896465537?ssPageName=STRK:MEWNX:IT&_trksid=p3984.m1439.l2649[/quote]
The batts never leave my sight whenever its recharging. Well all I can say it's as safe as they know what they are doing. Im doing this way until my hobby charger arrives.
Safety is always a questionable issue with those ebay charger. I saw Imax b6 charger going as low as $19 where my local retailer is selling at $38.