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[13:42:37] <lowin> 3 days of frustration trying to debug my code using led and uart. turns out I defined x_low and x_high as r28/r29 in my constants -.-
[18:29:53] <julius> hi
[18:29:54] <julius> got a solid state relais that is specified for 24-240v~ on the "secondary site", any change that it could also switch on a 12v~ voltage?
[18:31:08] <Casper> may be unreliable, or have excessive voltage drop
[18:32:10] <Lambda_Aurigae> it is basically a triac with driver circuitry...so, going under the recommended 24V AC, it might not latch up properly.
[18:33:09] <Casper> that is what I think too, also, I'm worried about the voltage drop..
[18:33:16] <Casper> isn't a triac around 1.4V?
[18:34:18] <Lambda_Aurigae> depends on the triac, but, yeah, it's gonna be in that area.
[18:36:50] <julius> ah crap
[18:40:08] <julius> but 12v ac wasnt dangerous if i dont put metal in my veins and attach it to them?
[18:41:38] <Casper> 24VAC require no protection against human contact, so will be safe unless you do stupid things
[18:42:27] <julius> ok
[18:44:19] <Lambda_Aurigae> heck, 6VDC can kill if done right.
[18:44:32] <Lambda_Aurigae> for that matter, a 1.5V D cell can kill if done right.
[18:46:16] <julius> how would you do that?
[18:46:19] <Casper> sure, just shove it in the victim's throat!
[18:46:32] <Lambda_Aurigae> hit them in the temple with it...or,,,
[18:46:37] <julius> ah ok
[18:46:41] <julius> brute force
[18:46:51] <Lambda_Aurigae> 1.5V and a couple of nice long sharp pins...stick them into the chest and connect battery.
[18:47:34] <julius> looks like there isnt a big market for ssr that switch on 12v ac in germany
[18:47:51] <Lambda_Aurigae> use a pair of heavy mosfets maybe?
[18:48:06] <Lambda_Aurigae> or a pair of big BJTs
[18:48:28] <julius> sure, but then i need a optocopler to seperate the ac from the dc and the optocopler needs to produce some juice like 1a to get the mosfet up quickly
[18:50:19] <julius> the ssr i have here would be capable of switching the 230v from the wall - there the 230/12v ac adapter is connected...but i dont play with 230v
[18:50:33] <Lambda_Aurigae> shouldn't be a problem.
[18:54:25] <julius> how much juice should the copler be able to support to get the mosfet up fast enough? i will go on, stay on for 30s and then go off
[18:54:44] <Casper> define fast enought
[18:54:47] <Lambda_Aurigae> depends on the mosfet I suppose.
[18:54:52] <julius> so no pwm, but still, the mosfet will go trough this linear region where it heats up
[18:55:08] <julius> i dont want it to die fast enough
[19:03:58] <julius> found one that can do 100ma
[19:06:36] <julius> would you put a resistor of 50ohm between optocopler output and mosfet input to protect the optocopler from the greedy mosfet which would like to get more current?
[19:06:44] <julius> assuming VCC=5V
[19:06:58] <julius> and Iout =100mA
[19:22:46] <malachi> Hi guys; anyone know a good IRC channel for discussing Atmel SAM parts?
[20:07:37] <julius> probably here or #electronics
[22:43:19] <Mr_Sheesh> malachi maybe #avr32? Unsure
[22:48:13] <malachi> thanks for the answers julius & Mr_Sheesh
[23:11:21] <Xark> malachi: avr32 (if it still exists) is for AVR32, not ARM. Try ##arm or ##embedded (or maybe ##asm...)
[23:12:23] <Mr_Sheesh> Xark's probably right there, yeah