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[00:02:15] <precognist> Hello.
[00:03:30] * Casper looks at precognist and say: Hell Looooow!
[00:04:41] <precognist> Hi.
[00:04:55] <precognist> (Does not know how to type in the third person)
[00:06:01] <Casper> you do /me text
[00:06:39] * precognist text
[00:06:53] <precognist> Thank you Casper.
[00:09:17] <rue_house> I still need to work out how to do really good current sensing for this motor driver
[00:09:21] <rue_house> its all going to be about current
[00:09:23] <Casper> now... color?
[00:09:25] <Casper> :D
[00:09:55] <Casper> back in the day... colors were so mind blowing...
[00:10:06] <Casper> nowadays... people mostly hate color
[00:12:29] <Jak_o_Shadows> I don't know how to do colour
[00:12:35] <rue_house> yea DONT USE BOLD OR COLOURS
[00:13:20] <rue_house> we do NOTwant your text to stand out
[00:14:19] <rue_house> ;)
[00:15:25] <rue_house> I'm really undecided how to even do the current control
[00:15:39] <Casper> what? you don't want this?? c'mon rue!
[00:15:40] <Casper> :D
[00:15:40] <rue_house> do I want to be trying to continiously regulate the current,
[00:15:55] <rue_house> or am I ok with controlling the current just while driving?
[00:16:09] <rue_house> while not driving should I be freewheeling or braking?
[00:16:11] <rue_house> arg
[00:16:39] <Casper> I'ld go freewheeling, unless you want to brake... freewheeling sound better in most case
[00:19:14] <Jak_o_Shadows> wait, that's in colour? My irc client is not great apparently.
[00:19:26] <rue_house> I think it depends on the system damping
[00:19:41] <rue_house> I can do freewheeling, soft braking and hard braking
[00:19:42] <Jak_o_Shadows> Aint it that you have an outer position loop and an ineer current loop?
[00:19:51] <rue_house> no
[00:20:14] <rue_house> each controller takes in a stream of current levels and outputs a stream of position values
[00:20:37] <rue_house> a controller in the middle tries to match the two postiions, but sends the same current to each side
[00:20:43] <rue_house> w/polarity
[00:21:37] <rue_house> rmm, 600Hz pwm
[00:21:42] <rue_house> 2 bytes/packet
[00:21:48] <rue_house> so 1200 baud/channel
[00:21:50] <rue_house> 8 channels
[00:22:00] <rue_house> 9600 baud min
[00:24:18] <precognist> So, I have this friend who is building a robot.
[00:24:19] <rue_house> bipolar current source
[00:24:33] <rue_house> precognist, WHY DONT YOU ADMIT YOU ARE BUILDING A ROBOT
[00:24:40] <precognist> It's not me
[00:24:40] <rue_house> FACE IT, WE ALL KNOW NOW
[00:24:52] <rue_house> WEEEE KNOWWW THE TRUUUUUTH!
[00:25:06] <precognist> ok.
[00:25:07] <rue_house> its public now, you cant hide it
[00:25:14] <rue_house> YOUR building a robot
[00:25:23] <precognist> No, its ok, its a closet robot.
[00:25:25] <rue_house> we know what you want to use it for too
[00:25:29] <rue_house> shame shame
[00:25:55] <Casper> precognist: this channel will give you some right answer, but lack a bit of seriousness, like you can see. Don't worry, rue don't bite.. or hasn'T bitten yet...
[00:26:17] <precognist> I have an i2c question
[00:26:31] * rue_house waits for a start sequence
[00:26:40] <Jak_o_Shadows> ahaha
[00:27:13] <precognist> Do i have to worry about loopback with accessories?
[00:27:29] <rue_house> how do you mean?
[00:27:46] <rue_house> nothing that hasn't been addressed should reply
[00:27:50] <precognist> If the accessories were to be wired in a loop, would that cause an issue?
[00:27:58] <rue_house> i2c isn't like that
[00:28:06] <rue_house> I think your thinking of isp?
[00:28:13] <precognist> yes.
[00:28:18] <rue_house> i2c is a clock and bidirectional data line
[00:28:28] <precognist> understood. is there any similarity?
[00:28:46] <rue_house> isp is "3 wire" clock, data in, data out
[00:28:54] <rue_house> each signal is unidirectional
[00:29:03] <rue_house> i2c is "2 wire" clock and data
[00:29:15] <Jak_o_Shadows> both open drain?
[00:29:17] <rue_house> clock is unidirectional** and data is bidirectional
[00:29:34] <rue_house> isp is fully driven
[00:29:40] <rue_house> i2c is open collector
[00:30:25] <rue_house> with an external pullup resistor
[00:31:37] <rue_house> ethernet is 4 wire, 2 loops that are transformer isolated on each side
[00:31:45] <rue_house> one loop is rx and the other is tx
[00:32:22] <rue_house> communications start with both sides trying to agree on a common speed they can talk
[00:33:23] <Jak_o_Shadows> Hence why I can be so uncaring about the type of cable I use.
[00:35:09] <rue_house> "I can talk 10mbit, can you?" "yea I can, can you talk 100mbit?" "yes, I can, can you talk 1G?" "yea, can you do 10G?" "yea I can, but some jerk is only using a cat5e and at that rate I can hardly make out a damn thing your saying" "shall we use it anyhow and drop 70% of his packets?" "OOOO, I like the way you think"
[00:35:23] <Jak_o_Shadows> ahaha
[00:37:07] <Casper> or... "can you talk 10mbit? yes? can you talk 100mbit? yes? can you talk 1gbit? yes? oh? the wire is not quite good? can you talk 10mbit half duplex? yes? let's use that"
[00:37:34] <rue_house> :) hehe
[00:37:52] <rue_house> coathanger networking
[00:38:53] <Casper> had a nic that did that
[00:39:03] <Casper> pin 8 was not proprelly crimped..
[00:39:17] <Casper> ... fall back to 10mbit half duplex... c'mon...
[00:40:14] <rue_house> if I put a current sense source resistor on each of the low side fets, then turning them both on will do soft braking, but then I have two different current sense resistors I have to read, unless I put in a combiner of some kind
[00:40:53] <rue_house> if I do one current sense resistor for both low side fets, I cant do soft braking
[00:41:52] <rue_house> maybe it would be good to know if hobby servos run in drive-coast or drive-brake mode
[00:42:39] <rue_house> the documentation onteh controller chips in them is pretty sketchy
[00:43:22] <rue_house> I'm gonna bet its drive-brake because then they are always driving the bridge, which is easier
[00:44:02] <rue_house> I wont know the motor current during braking, but I cant control it, so maybe it dosn't matter
[00:44:24] <rue_house> my other problem is sensing the motor current
[00:44:51] <rue_house> its pwm driven, I need to co-ordinate the adc samples with the pwm
[00:46:19] <rue_house> I dont want to filter, beasue I dont want the extra time constant
[00:48:55] <rue_house> hmm I could use a digital peak filter
[00:49:00] <rue_house> reset it every pwm cycle
[00:49:34] <rue_house> then I can average it with the pwm % to get the energy input into the motor
[00:52:04] <rue_house> "whenever possible, the hardware designer with dump problems off on the software designer"
[00:52:45] <rue_house> ok I have a plan
[00:54:32] <rue_house> hmm
[00:54:45] <rue_house> 3db/decade
[00:54:56] <rue_house> sample rate of 600Hz
[01:07:50] <rue_house> ok, the plan is on paper, lets go blow up a breadbaord
[01:08:53] <Jak_o_Shadows> I have somewhat melted a breadboard before
[01:32:16] <rue_shop3> its amusing to have a 5W 2.7 ohm power resistors sweating, and the sot-23 transistor driving it is not even warm
[01:32:59] <rue_shop3> so, yea, screw the rc filter, digital filtering will rock this app
[01:36:51] <rue_shop3> ok, duty test the driver...
[01:46:29] <rue_shop3> motor on a standard size hobby servo, at 5V, peaks 1.5A
[01:46:59] <rue_shop3> I'll need to integrate the adc readings, peak dosn't reflect torque
[01:49:56] <rue_shop3> if vref is 2.56V
[01:50:06] <rue_shop3> Rfb is 0.5R
[01:50:10] <rue_shop3> I is 1.5A
[01:50:49] <rue_shop3> 0.000625V/count
[01:51:10] <rue_shop3> ohm -r 0.5 -i 1.5
[01:51:10] <rue_shop3> Wattage is: 1.125000
[01:51:10] <rue_shop3> Current is: 1.500000
[01:51:10] <rue_shop3> Voltage is: 0.750000
[01:51:10] <rue_shop3> Resistance is : 0.500000
[01:51:43] <rue_shop3> 1200 counts
[01:52:01] <rue_shop3> so, a bit better than... wait a sec
[01:52:05] <rue_shop3> the adc IS only 10 bit
[01:52:21] <rue_shop3> 0.0025V/count
[01:52:34] <rue_shop3> 300 counts
[01:52:45] <rue_shop3> ok, so I'm a bit better than 8 bit
[01:53:18] <rue_shop3> I wonder if I should keep using 10 bit packets
[01:53:24] <rue_shop3> or make this an 8 bit stream
[01:54:00] <rue_shop3> if the mecha can lift 300lbs
[01:54:19] <rue_shop3> thats less than 1LB resolution
[01:54:52] <rue_shop3> better than 1/2LB at 10 bits
[01:55:08] <rue_shop3> 1/3LB-ish
[01:55:33] <rue_shop3> ok, I'm staying with 10 bits
[01:55:39] <rue_shop3> so,
[01:56:02] <rue_shop3> I should mult the values from the current sense by about 3 to scale them
[01:56:14] <rue_shop3> or
[01:56:58] <rue_shop3> if the vref is 1.1V
[01:57:26] <rue_shop3> I get full scale at about 700 counts
[01:57:42] <rue_shop3> this isn't worth op-amps
[01:58:00] * rue_shop3 tires to sell himself that story
[01:58:20] <rue_shop3> damnit the pop fridge is empty
[01:59:37] <mrdata> that wont do
[01:59:39] <Jak_o_Shadows> Very little is worht op-amps for me
[02:00:23] <rue_shop3> so
[02:00:27] <rue_shop3> 1 ohm, 1W
[02:00:33] <rue_shop3> 2 in paralle
[02:00:50] <rue_shop3> Wattage is: 1.125000
[02:00:50] <rue_shop3> Current is: 1.500000
[02:00:50] <rue_shop3> Voltage is: 0.750000
[02:00:50] <rue_shop3> Resistance is : 0.500000
[02:01:03] <rue_shop3> technically, yea I need two
[02:01:33] <rue_shop3> esp cause at 6V the peak current is likley to be higher
[02:03:25] <rue_shop3> yea if I use a 2.56V ref and mult by 3, I can get to about 1.7A before I peak out
[02:10:46] <rue_shop3> ok I need an H bridge board layout
[02:27:14] <rue_shop3> wonder if I can smt this whole driver
[02:29:14] <rue_shop3> maybe as a sip9
[02:40:19] <Jak_o_Shadows> Sigh. I should probably be using a struct for my picture, so I can keep track of the image size nicer
[05:39:25] <rue_house> hmm
[05:39:27] <rue_house> yea
[05:39:46] <rue_house> had to code it to be sure, rolling averages dont come out the same
[05:44:43] <rue_house> I need to know my adc sample rate
[05:47:09] <rue_house> oh maybe thats why my pid integrators never worked right
[05:47:12] <rue_house> hah
[05:49:49] <rue_house> I wonder if I get enough adc samples to properly average the current values
[05:52:09] <Jak_o_Shadows> I really need to get my head around running averages at som epoint
[05:57:18] <rue_house> #include <stdio.h>
[05:57:18] <rue_house> #define top 20
[05:57:18] <rue_house> int main(void ) {
[05:57:18] <rue_house> long i, v, l;
[05:57:18] <rue_house> long i2;
[05:57:18] <rue_house> i = 0;
[05:57:20] <rue_house> i2 = 0;
[05:57:22] <rue_house> for (l = 1; l != top; l++) {
[05:57:24] <rue_house> v = abs(rand())& 0xFF;
[05:57:26] <rue_house> printf("%d\n", v);
[05:57:30] <rue_house> i2 += v;
[05:57:32] <rue_house> i += (v - i)/l;
[05:57:34] <rue_house> }
[05:57:36] <rue_house> printf("----------------------\n");
[05:57:38] <rue_house> printf("%d\n", i2/(top-1));
[05:57:40] <rue_house> printf("%d\n", i);
[05:57:42] <rue_house> return 0;
[05:57:44] <rue_house> }
[05:59:09] <rue_house> +- 1
[06:09:36] <rue_house> buuuut
[06:10:35] <rue_house> if my adc samples are comming back at only up to 300 counts, and if I have less than 218 samples per period, I can save myself time by just integrating them and doing the division all at once
[06:11:38] <rue_house> I know the rate is 600Hz, but I dont know how many adc samples I usually get in that time
[06:11:49] <rue_house> I may have to make my slave adc do averaging for me
[06:12:11] <rue_house> I have 10 remote channels and 6 local channels
[06:12:19] <rue_house> I dont need to average the positions
[06:12:32] <rue_house> just the current readings
[06:14:19] <rue_house> I doubt I get 130Khz/channel
[06:16:01] <rue_house> so, the loop controller will need to have 2 serial ports I suppose
[06:16:25] <rue_house> one for side A and the other for side B
[06:16:48] <rue_house> unless I split my 8 channel controller to be 4 feedback loops
[06:19:07] <veverak> i find your use of oneletter variables disturbing
[06:23:36] <deshipu> veverak: at least they are latin, not greek
[06:23:42] <veverak> :)
[06:23:54] <veverak> deshipu: sounds like life experience
[06:24:52] <veverak> I wonder how local udp connection is effeciemt on linux
[06:35:46] <deshipu> veverak: depends over what
[06:45:22] <rue_bed> BACK IN MY DAY,WE ONLY __HAD__ ONE LETTER FOR VARIABLES
[06:47:34] <deshipu> and a prime
[06:47:40] <rue_bed> i, j, k, x,and y, BECAUSE Z HADN'T BEEN INVENTED YET
[06:48:04] <deshipu> when I was at the uni, we only had a, a', a'', a''', etc.
[06:48:46] <deshipu> and you had to encode the integers in unary
[06:48:59] <rue_bed> octal, ugh
[06:49:13] <deshipu> 1, 11, 111, 1111, 11111, etc.
[06:49:39] <deshipu> later they upgraded to roman numerals
[06:49:58] <rue_bed> it would reduce the wires for a serial line, you just need a clock
[06:50:30] <deshipu> I think WS2812B does that
[06:53:23] <deshipu> actually, all those ultrasonund range finders do that, no?
[08:06:50] <Tom_itx> LoRez, any damage?
[08:07:37] <LoRez> probably. no significant damage that I've noticed so far
[08:07:40] <LoRez> you?
[08:20:46] <Tom_itx> nothing major
[08:38:10] <veverak> deshipu: I will change my question, if it's actually effective way to make interprocess communicatio
[08:38:12] <veverak> n
[08:38:20] <veverak> hmm. not interprocess, just between programs
[13:26:45] <The_Jester> Hello robotics people
[14:38:51] <deshipu> veverak: what question?
[14:55:29] <The_Jester> any recommendation on how to power 3 microservos in a arduino based 3 servo hexapod with a 8.4v 25c lipo, arduinos 5vReg is too weak 8.4 will fry the servos
[14:56:57] <veverak> deshipu: nevermind :)
[14:57:11] <veverak> The_Jester: UBEC regulators
[14:57:13] <veverak> :)
[14:57:24] <veverak> found in RC shops
[14:57:33] <veverak> 2/3/5A should be easily to find
[14:58:24] * The_Jester googling
[15:05:46] <rue_shop3> hey
[15:06:15] <The_Jester> those seem good for alot of aplications but since im developing a product which i want to intigrate into a single board design im not so sure, my friend keeps saying i want a aliexpress dc-dc buck convertor which are all ripped off open source designs but im throwing it out there looking for inovative ideas.
[15:07:03] <veverak> :)
[15:07:20] <veverak> The_Jester: well, you could figure out how they work
[15:16:46] <The_Jester> I suspect commercial UBEC modu;es are based on the same LM2596 SMPS Chip
[15:22:11] <The_Jester> the short story is after alot of work in solid works modeling this thing i finally got my reprap up and running, printed a prototype, revised and rebuilt several times and finnaly assembled something that will walk but now find my servos overheat the reguolator on my cheap chineese arduino and after 4 or 5 steps the regulators suffers from instability due to thermal breakdown and crashes the
[15:22:12] <The_Jester> processor, I just want to get walking so I can determin if the feet need to be redesigned for traction pads
[15:25:51] <SpeedEvil> Add bigger regulatrors, and or fans
[15:26:09] <SpeedEvil> also - you should never be using the regulator on the arduino
[15:26:19] <SpeedEvil> http://www.ebay.co.uk/itm/271863755380?_trksid=p2057872.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT
[15:26:30] <deshipu> SpeedEvil: what?
[15:27:24] <The_Jester> deshipu: was talking to me
[15:27:40] <deshipu> The_Jester: yes, I know, but it doesn't make sense
[15:27:50] <deshipu> the regulator is there to be used
[15:27:54] <SpeedEvil> deshipu: sure.
[15:27:57] <deshipu> just not for stuff that takes more than 200mA
[15:28:02] <SpeedEvil> deshipu: but it can only provide a very small amount of power
[15:28:20] <SpeedEvil> certainly not for 3 servos
[15:28:31] <deshipu> right, but not "never"
[15:28:40] <SpeedEvil> never for 3 servos.
[15:29:05] <deshipu> what if they are sub-micro servos that take less than 60mA each?
[15:29:47] <deshipu> anyways, you know what I mean :)
[15:29:51] <veverak> :D
[15:29:55] <veverak> The_Jester: pics!
[15:30:01] <veverak> we like walking robots here
[15:30:08] * veverak is just procrastrinating on one
[15:30:30] <deshipu> The_Jester: have you considered building a hexapod (or quadruped) that actually walks, instead of crawling?
[15:31:58] <The_Jester> deshipu: that will be later along with a biped ect. There is so much crap in the STEM robotics area, I just wanted something affordable and easy to produce so kids can get a low cost platform.
[15:32:35] <deshipu> The_Jester: try
http://tote.rtfd.org -- about $30 in parts
[15:33:00] <veverak> The_Jester: tote is nice!
[15:33:02] <veverak> :)
[15:35:51] <The_Jester> tote looks nice, My bot cost about $15 not counting battery or printer filiment so i think the price point is low enough teachers could put one in every students hands
[15:36:21] <deshipu> well, 3 servos versus 12 servos...
[15:36:58] <deshipu> The_Jester: I have a 4-servo biped for $10
[15:37:04] <deshipu> including the battery
[15:37:11] <deshipu> no 3d-printer required
[15:37:56] * veverak added raspberry to 12 servos and kind of needs 3d printer
[15:38:26] <The_Jester> Deshipu: Popsicle sticks?
[15:38:50] <deshipu> The_Jester: foamed pvc
[15:40:14] <deshipu> well, ok, the official version of that robot uses a micro:bit, which is kinda expensive (unless you live in UK and got one for free), but you can use a $2 pro mini instead just as well
[15:41:05] <deshipu> 4 servos at $4 each, batteries and holder $2, pro mini $2, foamed pvc sheet $2
[15:41:16] <deshipu> err, servos at $1.5 each
[15:41:20] <The_Jester> Im going to go promini eventually, want to etch a carrier with it with all the servo and sonar interface connectors on it.
[15:41:27] <The_Jester> pics are coming btw
[15:41:48] <deshipu> The_Jester: I have some of such PCB boards if you want
[15:42:06] <deshipu> The_Jester: I had to order 10 pieces every time, and I have some extras of the older versions
[15:42:45] <The_Jester> interesting, Pics?
[15:45:22] <rue_shop3> I'm back
[15:45:29] <The_Jester> http://imgur.com/WOOhHMG
[15:46:02] <rue_shop3> hehehe goggles are sweet
[15:47:04] <The_Jester> http://imgur.com/nDJ818b
[15:47:22] <deshipu> The_Jester: I have one of those left:
https://cdn.hackaday.io/images/9912351433841942696.jpg <-- the 4 holes on the bottom are for the ultrasound range sensor
[15:47:25] <The_Jester> rue_mohr added the glasses..lol
[15:47:38] <deshipu> The_Jester: and I have a whole bunch of those:
https://cdn.hackaday.io/images/8269681437488977992.jpg
[15:47:53] <rue_shop3> ah its for a pro mini
[15:47:58] <deshipu> The_Jester: the schematic for these is
https://cdn.hackaday.io/images/6927631435323642206.png
[15:49:00] <rue_shop3> deshipu, did you make those at the same time I made the other ones?
[15:49:14] <rue_shop3> no, yours are larger than the ones I 'm thinking of
[15:49:30] <rue_shop3> someone made one that wraps the servo connectors under it to make it all about half that size
[15:49:44] <deshipu> rue_shop3: unfortunately I have no crystal ball to tell when you made something
[15:50:44] <rue_shop3> http://ruemohr.org/~ircjunk/robots/arm8/p1060720.jpg
[15:50:55] <rue_shop3> that was one of the things we were playing with
[15:51:07] <rue_shop3> the idea was the min board size to connect servos to a pro mini
[15:51:19] <SpeedEvil> http://i.imgur.com/yFjF3fL.png
[15:51:43] <rue_shop3> intesting, I dont have a pic of my last controller
[15:53:03] <The_Jester> Yes rue, YOu get a cookie yours is smaller but its not actaully a carrer board.
[15:54:13] <deshipu> rue_shop3: ah, that would be
https://cdn.hackaday.io/images/3743431455290409887.jpg
[15:54:40] <deshipu> https://cdn.hackaday.io/images/8081231455291143518.jpg
[15:54:43] <deshipu> 18-channel :D
[15:55:00] <deshipu> controlled over i2c
[15:56:54] <deshipu> I had a photo somewhere showing all the prototype versions of those pcbs I made over the last 2 years
[16:00:01] <deshipu> can't find it
[16:00:01] <The_Jester> darn it, i miss the good old days when i had one password, all lower case and no numbers for all sites, also back then i hadent had a horiffic life changing nurological incident that left me unable to remeber passwords and most of my life before 30
[16:00:21] <deshipu> The_Jester: I never changed mine
[16:01:09] <deshipu> only found a video:
https://www.youtube.com/watch?v=4FdjYSsiURU
[16:02:53] <veverak> /me uses offline password manager
[16:03:02] <veverak> deshipu: private video
[16:03:07] <deshipu> https://www.youtube.com/watch?v=_RqtMg66i5g
[16:03:09] <deshipu> this one?
[16:03:25] <deshipu> the boards are at 0:56
[16:08:26] <The_Jester> deshipu: that project is on io?
[16:09:04] <deshipu> The_Jester: yes
[16:09:17] <deshipu> https://hackaday.io/project/6050-tote
[16:10:08] <rue_house> deshipu, yea thats the one
[16:10:41] <deshipu> rue_house: I actually use it in my hexapod
[16:11:12] <deshipu> it's tight, 5x5x5cm cube for body
[16:11:41] <rue_house> what did you use for servo power?
[16:12:02] <rue_house> 4.8?
[16:12:03] <deshipu> a 2s lipo and a buck converter module
[16:12:18] <deshipu> for that particular robot
[16:12:27] <deshipu> in tote I just use a 1s lipo directly
[16:12:42] <rue_house> did the usual ~1.5A converters work?
[16:13:04] <The_Jester> followed.
[16:13:08] <rue_house> a standard servo peaks out a 1.5A on 5V
[16:14:15] <deshipu> rue_house: those are SG90 servos, they peak at ~400mA
[16:14:21] <deshipu> rue_house: I used this:
https://www.aliexpress.com/item/DC-DC-Boost-Buck-adjustable-step-down-Up-Converter-XL6009-Module-Solar-Voltage/32488966935.html
[16:14:37] <deshipu> also, not all servos peak at the same time
[16:15:12] <deshipu> The_Jester: there are some alternate versions, one with a pi zero, one with esp8266 and micropython...
[16:15:25] <rue_house> haha the title dosn't know what the converter is
[16:15:38] <rue_house> that one is a buck
[16:16:16] <The_Jester> deshipu: Nice to get the answer you need without asking for it, 400Ma.
[16:16:41] <The_Jester> so 3x 400= 1.2A
[16:16:41] <deshipu> The_Jester: it actually varies, SG90 has a lot of clones
[16:16:43] <rue_house> I'v not tested the micro servos
[16:16:56] <rue_house> and theat converter says good for 3A
[16:17:23] <deshipu> The_Jester: personally I like the SG92RC, which are the same size, a bit more expensive, but stronger and faster, and use carbon fiber gears
[16:17:39] <deshipu> rue_house: well, it didn't explode yet on me :P
[16:17:47] <deshipu> rue_house: I will let you know when it does
[16:18:24] <The_Jester> so no wonder the ams1117 on this arduino $h1ts the bed
[16:18:33] <The_Jester> its 800Ma
[16:18:51] <deshipu> right
[16:18:58] <rue_house> I'm sure its 800mA if there is no or miniumu voltage drop across it
[16:19:11] <deshipu> and it's linear
[16:19:14] <rue_house> if your dropping 4V, I'm sure the current goes down a lot
[16:20:42] <The_Jester> Rue, i am holding that exact aliexpress pcb in my hand, you said it wont go below vcc
[16:21:04] <rue_house> they looks close, but they aren't
[16:21:12] <rue_house> see how the inductor is placed differently?
[16:21:23] <rue_house> the "6009?" one your holding is a boost
[16:21:41] <rue_house> the buck ones dont have a part number silk screened on the back of the baord
[16:22:10] <The_Jester> rue: Are you going to make me post a picture buddy?
[16:24:50] <The_Jester> http://imgur.com/PKeBuvl
[16:24:56] <The_Jester> made me do it
[16:26:18] <rue_house> look at the bottom
[16:26:29] <rue_house> http://ruemohr.org/~ircjunk/images/p1080397.jpg
[16:26:35] <rue_house> http://ruemohr.org/~ircjunk/images/p1080398.jpg
[16:26:43] <rue_house> those two are labeled
[16:27:23] <rue_house> maybe the listing IS screwed up, its got a lot of confliicting info
[16:27:23] <The_Jester> yes its written on this one too, answer is chinaman use wong pichure
[16:27:51] <deshipu> The_Jester: you can't trust them
[16:28:24] <rue_house> hook it up and play with the adjust, if it goes from Vin up, its boost, if it goes from Vin down, its buck
[16:28:57] <rue_house> I had a pile of the boost ones in there for running high power leds from 6V batteries
[16:29:49] <The_Jester> http://www.aliexpress.com/store/product/5-PCS-LOT-DC-Converter-Step-Down-Voltage-4-5-35V-to-1-25-30V-Rate/715925_706373622.html
[16:29:53] <rue_house> a buck cant output more than the input voltage, a boost cant output less
[16:29:55] <The_Jester> wrong pic there too
[16:30:20] <rue_house> I'm going by the fact you got it from my pile
[16:30:26] <rue_house> almost all of them are boost too
[16:31:06] <rue_house> na, see the back, that listing is right, I think
[16:31:19] <The_Jester> nope, same layout, same parts
[16:31:23] <rue_house> ah
[16:31:49] <rue_house> power it up and see for sure, I do have a few batches of things in there, couldn be a remote chance I'm wong
[16:32:16] <The_Jester> i know what you mean though the buck have the inductor on the input side
[16:34:02] <rue_house> I'm gonna make use of the sun and work ont eh greenhouse, back in a while
[16:34:29] <The_Jester> on the otherhand i can use my lipo to shock the heck out of myself, or atleast cause an uncomfortable tingling accomponied by a 400Khz squeel
[16:36:31] <The_Jester> cant get much better than rue getting bit by a 50v bost convertor, then frying it..
[16:44:37] <The_Jester> deshipu: thanks for the advice and the chat.
[16:46:25] <deshipu> The_Jester: I'm always happy to talk about quadrupeds :)
[16:47:53] <The_Jester> deshipu: i want to do a cat styled quad some day
[16:48:19] <deshipu> The_Jester: eight servos
[16:48:38] <deshipu> https://hackaday.io/project/10665-pony-bot
[16:50:46] <The_Jester> i like this kinda thing
http://www.peterasaro.org/robot/TomCatWindow.jpg
[16:51:25] <deshipu> https://hackaday.io/project/8843-mr-runner
[16:53:02] <deshipu> that guy has some papers published
[16:53:44] <veverak> speaking of papers
[16:53:46] <veverak> I have soem to read
[16:53:48] <veverak> hmm
[16:54:40] <deshipu> I usually skip the paper and only read the ink on it
[19:06:16] <rue_house> deshipu, OH DEAR GOD, I'V BEEN WRITING FOR YEARS ON ALL THESE PAGES, AND THERE ISN'T A DROP OF INK ON THEM!!!!
[19:07:57] <rue_house> I'v just about sold myself on an amplifying peak detector
[19:08:53] <rue_house> then my 0.75V becomes 4.5V, and I dont have to worry about when the sample happens
[19:10:33] <rue_house> partly because at 4 op-amps per chip, it'll only take 2 chips to handle all 8 channels
[19:11:41] <rue_house> gutters are on the greenhouse, one still needs to be plumbed into the tank
[21:07:17] <rue_shop3> ok the pile of firewood is in the woodshed
[21:07:29] <rue_shop3> and I made more parts for the pipe bender
[21:19:37] * Casper throws a light match at the bottom of the pile
[21:22:48] <Jak_o_Shadows> dunno if that would do much
[21:23:14] <Casper> if there is some saw dust, maybe
[21:30:52] <Jak_o_Shadows> Maybe rue pre-soaks his firewood in petrol.
[21:33:21] <SpeedEvil> I soak my wood in wood
[22:15:04] <rue_shop3> the op-amp peak detector looks plausable
[22:15:56] * rue_shop3 prints stand for digital scope
[22:35:41] * rue_shop3 prints other stuff, cause the filament is going to get brittle and snap off before the next print
[22:44:23] <rue_shop3> a 2N7000 works great for resetting the peak detector
[23:12:54] <rue_shop3> I lost my finger
[23:13:01] <rue_shop3> I really need to find it
[23:14:01] <precognist> ... just take it out.
[23:14:11] <precognist> of where you are hiding it.
[23:16:58] <rue_shop3> I found it
[23:17:00] <rue_shop3> ok
[23:17:22] <rue_shop3> now, how do these tendons go...
[23:27:01] <rue_shop3> hmm, I need to stitch a tendon, how the heck do I do that
[23:27:13] <The_Jester> Huh?
[23:29:00] <The_Jester> Well the guy who wrote Mirc included cripple ware, so Mirc is out, Appearently icechat is it, free and interface isnt retarded once you figure out how to change the default red text / black background theme
[23:30:53] <Jak_o_Shadows> pidgin
[23:33:00] <rue_shop3> The_Jester, hexchat
[23:34:00] <Jak_o_Shadows> ok, yeah, hexchat is probably better than pidgin
[23:36:02] <The_Jester> hex chat could be good, Although pidgin offers intigrated messanger clients, Does anyone even use icq anymore?\
[23:36:29] <rue_shop3> The_Jester, what I use is a ancestor of hexchat
[23:36:54] <The_Jester> http://www.peterasaro.org/robot/TomCatWindow.jpg
[23:36:57] <The_Jester> look
[23:37:12] <rue_shop3> i saw
[23:37:17] <rue_shop3> cute
[23:38:01] <Jak_o_Shadows> pidgin doesn't handle some of the particulars of IRC too well.
[23:38:12] <The_Jester> ooo, hyperlinks are hyperlinks in this... Mirc is stupid and it seems the author is greedy.. Been using mirc free since like 1999. wtf.
[23:38:37] <Jak_o_Shadows> On robots: My idea for a robot is a quadrapod with a stewart-gough type thing in the middle to give some semblence of a spine
[23:39:05] <Jak_o_Shadows> So like that photo, but with a stewart platform in the middle
[23:42:19] <The_Jester> Ahh i think i can picture that
[23:45:40] <The_Jester> felt like
https://www.reddit.com/r/PaidForWinRAR/ when mirc locked me out..lol
[23:46:59] <rue_shop3> just install hexchat
[23:47:44] <The_Jester> its existance has been noted, Im gonna try ice chat for a while
[23:48:32] <The_Jester> clearly you didnt get the joke... ppl pay for winrare?
[23:49:43] <rue_shop3> dude, you forget, I dropped ms operating systems back in 2001 and havn't paid for a peice of software since
[23:50:01] <rue_shop3> Iv not even pirated anything
[23:50:09] <rue_shop3> cept music, that dosn't count
[23:50:23] * The_Jester rolls eyes
[23:52:02] <The_Jester> I dropped command line OS's back in 1995
[23:52:37] <rue_shop3> its just an interface, just like a graphical one
[23:53:54] <rue_shop3> you just think of linux as command line cause thats how I use it
[23:54:09] <rue_shop3> for 90% of things I find command line faster
[23:54:31] <The_Jester> differnt strokes for differnt folks,. Besides i kinda like having a desktop manager that functions
[23:55:03] <rue_shop3> I cripple mine
[23:55:11] <rue_shop3> thats why they dont work
[23:55:16] <rue_shop3> its not linux, its me
[23:56:00] <rue_shop3> I dont like clicking 6 times thru a menu to run a program, I like to just type its name and have it come up
[23:56:18] <precognist> cmd->prog_name
[23:56:23] <rue_shop3> ok, I designed the mecha finger tendon
[23:56:36] <rue_shop3> now I just need to find a sewing machine
[23:57:08] <The_Jester> i was quite pleased to discover I wouldent place anything on my desktop in debioan, YOur answer was "get used to it, YOur trying to use it wrong..."
[23:57:14] <rue_shop3> I find most modern gui's require WAY too much clicking to get simple things done
[23:57:40] <The_Jester> So for now MS woins the day
[23:57:44] <rue_shop3> you can put stuff on the debain desktop...
[23:58:11] <The_Jester> not on my debian machine appearently
[23:58:23] <rue_shop3> I dont like to cause the desktop becoems a cluster**** that you have to minimzize everything all the time to get to
[23:58:37] <rue_shop3> and I really hate the way people run all applications always fullscreened all the time
[23:58:42] <rue_shop3> what?
[23:58:50] <The_Jester> 'clicks show desktop'
[23:59:03] <rue_shop3> yea I like to leave my windwos up
