**** BEGIN LOGGING AT Tue Nov 05 02:59:58 2019 Nov 05 09:31:17 Nov 05 09:31:39 zmatt: that's promising Nov 05 09:35:18 rah: I also have some ideas that could make the probability very low (although I suspect not zero) without removing caps from the BBB (patching boards is not ideal for production), e.g. using a voltage supervisor with push-pull output instead of the open-drain one I've tested with so far... then it can drive the reset high more strongly than a reasonable pull-up resistor can Nov 05 09:36:24 based on the numbers I've seen so far I think that could at least reduce the probability of it happening by a factor of 10 or so Nov 05 09:36:47 another though would be something that can generate a reset pulse triggered by a gpio Nov 05 09:36:50 *thought Nov 05 09:37:01 so software can hard-reset the board if the phy doesn't show up Nov 05 12:43:06 Can I use Beaglebone Blue as the main MCU for controlling *and* driving Dynamixel servos (like MX series)? Nov 05 13:25:31 I don't see why not, do you need something more than the several processors the AM3358 has in it? I think DSP ARM m7 ARM m4 and 2 PRU's should be enough to run a CNC system easily. Example? https://www.hackster.io/octavo/iot-robot-w-osd335x-powered-beaglebone-blue-rubik-s-solver-5891a4 from BB_blue stuff Nov 05 13:39:19 GenTooMan, Thanks. I need it for controlling a 3dof robot Nov 05 13:40:12 GenTooMan, Other problem is voltage. I see that it can support a 2cell Li-Po battery but the voltage would be capped at 7.4V? Dynamixel needs about 12V. How can I utilize the onboard battery charger? Nov 05 13:56:04 Hi Good Day! I am loooking for few answers to my queries Nov 05 13:59:41 Do you have a product which supports LED screens to integrate with a Digital Signage Software? Nov 05 15:01:28 ds2: yes, it is supposed to be a binary tool. Nov 05 15:23:45 m Nov 05 15:25:43 Hamilton Although I don't have eagle handy look at the schematics. VCC can be 12V the voltage dividers for VBAT and VCC are good up to 19.1V I believe the ADC on the device has a range of 0 to 1.8V. the MP2615 is rated to 18V the AP1509 is rated to 22V so that shouldn't be a problem. Schematics for the BBblue https://static5.arrow.com/pdfs/2018/2/22/9/13/8/276/beagle_/manual/beaglebone_blue_sch.pdf Nov 05 15:26:19 the charger is designed only for 1 to 2 LiPo batteries it appears. Nov 05 15:27:15 GenTooMan, Can I use the output of battery while DC barrel jack is connected to Vin? Nov 05 15:27:26 I mean can I use the battery while it is being charged? Nov 05 15:29:29 hamilton as far as I can see yes. Look at the schematic section "2A 5V Regulator" Nov 05 15:29:42 It's all their so to speak. Nov 05 15:31:15 However if you look at "Servo Connectors & Power Control" section you will see it derives power for servo control from the battery. Nov 05 15:48:06 Let me explain about using lithium rechargeable batteries. You do not want to float charge them. So you need to be careful draining power from the battery while it's connected to 12V power. The reason is you will end up constantly charging the battery which destroys lithium rechargeable batteries. The termination current on the charger is 1/10 of the charge current of 1A or 100ma. Nov 05 15:55:35 GenTooMan, Thanks. About BB Blue, isn't lack of miniHDMI a bummer? Should I consider BB Black just for this feature against all other good things BB Blue provides? Nov 05 16:16:09 hamilton I suggest you write down what you need, rate each feature in importance. If you require HDMI you can add that with some work. If you are trying to do OTS (Off The Shelf) only then if you NEED hdmi you probably don't want the BBblue. Nov 05 16:16:49 GenTooMan, No Blue's Li-Po charger is pretty much a deal breaker. Nov 05 16:17:05 I was just wondering if an hdmi makes programming it more easy Nov 05 16:17:20 since I don't have expe. in SBCs only Arduino and some Arms Nov 05 16:23:41 hello again Nov 05 16:23:45 Depends on how you want to do the development and which image you use for your work. You unfortunately have a number of options. I STRONGLY suggest you the serial debug cable (https://elinux.org/Beagleboard:BeagleBone_Black_Accessories#Serial_Debug_Cables), so you can access the system if it is powered. Nov 05 16:25:30 2 questions: Nov 05 16:25:36 1) To what service the HDMI is dependent? I don't get any output from it, what should i look for? Nov 05 16:25:46 GenTooMan, Thanks for your helps Nov 05 16:26:07 2) There's a way to assign to an input in the dts file a "system event" instead of a keystroke? an event that an app can catch no matter if it have the focus? Nov 05 20:29:35 zmatt: I tried swapping the order of wbs and xor in the asm file and now the test passes at 1MHz! Nov 05 20:35:57 Hey guys, I'm working on a senior project using the BeagleBone Black Wireless. I was messing around with the node.js versions and ended up uninstalling it. I'm now unable to connect to 192.168.7.2 using my computer via usb to beaglebone. I have tried uninstalling nodejs using other sources but have been unable to. I am also able to ssh Nov 05 20:35:57 debian@192.168.7.2 but not able to connect via browser. Nov 05 20:41:53 Nick123: just reflash.. nodejs is needed for clou9ide.. Nov 05 20:44:38 i've got an idea to give cloud9ide it's own version of nodejs to allow uses to switch versions, but i'm not ready to push that out.. Nov 05 22:04:59 GenTooMan: "DSP ARM m7 ARM m4 and 2 PRU's" .. ehm, of these things only the two PRUs are actually in the AM3358 Nov 05 22:05:49 GenTooMan: it's cortex-a8 and two PRU cores (and an m3 used only for power management stuff) Nov 05 22:07:57 I sit corrected! Nov 05 22:10:00 zmatt I've heard people mumbling about doing something with the m3 at times but nary have heard anything more about it. Nov 05 22:12:11 I mean it's possible, but the m3 has very limited ram and very limited system access (only things on the L4WKUP interconnect) Nov 05 22:12:41 possible but impractical in other words. Nov 05 22:14:14 it just limits its applications Nov 05 22:16:39 it has 16K+8K ram and access to: prcm, control module, gpio 0, uart 0, i2c 0, adc/tsc, rtc, timer 0, timer 1, and a debug instrumentation port (to log to STM) Nov 05 22:22:55 it might be made to be useful however it already has FW loaded into it to manage power correct? Nov 05 22:23:40 sure, but the source is available so you can merge it with your own stuff, and/or just disable it and live without it Nov 05 22:23:49 it's mostly needed for suspend and such Nov 05 22:39:54 I'll have to look into it, there is a project I was considering doing that a BBB equivalent would be easier to use with than other options. Nothing is easy as they say. Nov 06 00:20:34 the M3 is handy for small things. in practical terms, whatever you do to the outside world is limited to gpio0 Nov 06 00:20:50 and it can live on even after the A8 goes to slumber mode Nov 06 00:28:09 yeah, it can probably be quite useful for low power devices to look after some small tasks without having to wake up the cortex-a8 for them (and without the latency of the cortex-a8) whenever both pru cores are already in use for other stuff or if you want the tasks to continue while PD_PER is OFF) Nov 06 01:54:45 @zmatt: Can I show your inverter as the middleman in b/t the BBBW and a rangefinder as a post? Nov 06 02:00:39 I do not know if you even remember but it is the one w/ the BJT NPN, two 1k resistors, and the EZ2 w/ the BBBW. Nov 06 02:01:39 you mean https://photos.app.goo.gl/kKKCQkVLNQK2veuw7 ? ehh, sure? Nov 06 02:02:39 Okay. Nov 06 02:03:04 I was going to change things up but that works and I was going to show in the datasheet where the idea comes from... Nov 06 02:03:05 ... Nov 06 02:03:24 I had no idea about the need for inverters for this set up until you made me understand. Nov 06 02:03:36 I missed it on the datasheet. Nov 06 02:03:49 Anyway, thank you twice. Nov 06 02:04:55 I will post here to show the silly post on hackster so people can have a log of it in case people want to use it. Nov 06 02:05:06 Oh and can I use the source you handed me via this chat? Nov 06 02:05:21 I was going to post the John's source and your source too. Nov 06 02:07:35 no idea what source you're referring to specifically but I'm sure it's fine Nov 06 02:08:35 Okay. I can show you if necessary! Nov 06 02:08:42 I still have it. Nov 06 02:39:30 https://www.hackster.io/functt/maxbotix-range-finder-and-python-c6bc11 is fun! Nov 06 02:58:35 Okay...I updated it. Things make more sense like a band of banshies running down the river banks. **** ENDING LOGGING AT Wed Nov 06 03:00:06 2019