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  • mjs513's Avatar
    Today, 12:51 AM
    Default settings used for all PDOF(6) except for the column marked PDOF(2) was curious what kind of performance improvement we would see if it was changed.
    958 replies | 20547 view(s)
  • mjs513's Avatar
    Yesterday, 09:20 PM
    Hope he feels better soon - just got over a something that kick my you know what - tell him get lots of rest and drink lots of fluids. And feel better soon.
    958 replies | 20547 view(s)
  • mjs513's Avatar
    Yesterday, 08:42 PM
    ADAFTUIT MOTOR SHIELD V2 LIBRARY Ok. I picked up another Adafruit v2 motorshield that I modified for 3.3v and hooked up a stepper motor. The shield is unique in that it uses I2C for the control of the motors so I...
    958 replies | 20547 view(s)
  • mjs513's Avatar
    Yesterday, 05:19 PM
    @KurtE Ok that got it - used wrong branch the ding bat that i am. Anyway now it works like a charm. Just for comparisons at this point i updated the benchmark table that i generated earlier, post #827. Big...
    958 replies | 20547 view(s)
  • mjs513's Avatar
    Yesterday, 04:41 PM
    @KurtE Ok just downloaded latest updates to SPIN and ILI9341 WIP libraries as well as redownloading your SPI fork just in case. I am still getting that pin 10 is not a valid CS pin and I changed to your pin...
    958 replies | 20547 view(s)
  • mjs513's Avatar
    Yesterday, 04:08 PM
    @manitou Nope. You are right the Quadrature encoder in the SDK uses the XBAR pins so the I pins have to be redefined, XBAR is an alternate pin configure. That's why I was asking about reconfiguring the pins.
    958 replies | 20547 view(s)
  • mjs513's Avatar
    Yesterday, 02:53 PM
    Morning Kurt Tried that pin configuration as well - will put it back just as a double check. Funny thing is when I used the adafruit version the follow construct would work: Adafruit_ILI9341 tft =...
    958 replies | 20547 view(s)
  • mjs513's Avatar
    Yesterday, 01:34 PM
    Question No takers on this question or did it get lost with all the other messages :)
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  • mjs513's Avatar
    Yesterday, 01:02 PM
    @KurtE Downloaded the lastest (as of tues 07:30 EST) and ran problems. But first - to get the rest of the tests delete you wait for input code then the rest of the code works. Ok. Nothing gets displayed but looks...
    958 replies | 20547 view(s)
  • mjs513's Avatar
    Yesterday, 02:28 AM
    Tim Not sure why tempmon_init would break your build. I see the function table in interval timer but it not throwing any errors when I run a intervaltimer example sketch that I have.
    958 replies | 20547 view(s)
  • mjs513's Avatar
    Yesterday, 12:09 AM
    Tim u got that right: @KurtE - just downloaded your forked version of SPI so I could get you t3n_WIP running. Put a scope on the CS and DC pins running the GraphicsTest sketch. DC is firing constantly - have to...
    958 replies | 20547 view(s)
  • mjs513's Avatar
    01-15-2019, 09:41 PM
    Tim, Meant to say it last night, but, great work on the microsecond timer, hope it gets incorporated. @Frank. There are so many different clocks that can get affected by the arm clock. Tim may be right about USB...
    958 replies | 20547 view(s)
  • mjs513's Avatar
    01-15-2019, 04:34 PM
    Thanks = will work on this, this afternoon. Just picked up a stepper motor and Adafruits breakout motor controller board to test their library. Have their shield but that's a pain to work with. So have a bunch of...
    958 replies | 20547 view(s)
  • mjs513's Avatar
    01-15-2019, 04:31 PM
    USING ALTERNATE DEFINITIONS OF PINS - HOW TO? Getting myself really confused on this one, trying to read the manual and testing. Looking at PINs 0 and 1 for instance the default is Serial1 (LPUART6). Now if I want...
    958 replies | 20547 view(s)
  • mjs513's Avatar
    01-15-2019, 03:23 PM
    @KurtE I started this so I willing to play along :) You might want to check out TXCOUNT and maybe tx watermark? Maybe one of these will help. Working another problem I am having, really just don't understand how...
    958 replies | 20547 view(s)
  • mjs513's Avatar
    01-15-2019, 01:57 PM
    CORE_PINS.H Think minor error on pin assignment: // pad config registers control pullup/pulldown/keeper, drive strength, etc #define CORE_PIN0_PADCONFIG IOMUXC_SW_PAD_CTL_PAD_GPIO_AD_B0_02 #define...
    958 replies | 20547 view(s)
  • mjs513's Avatar
    01-15-2019, 12:24 AM
    Ok will do. FreqMeasure I got as FlexPWM4, it was obvious at that one. Will relook at the other IntervalTimer again. Will keep in mind that in mind as I go through them.
    958 replies | 20547 view(s)
  • mjs513's Avatar
    01-14-2019, 10:48 PM
    Just went through it again - just to verify. Like you said, just enables and reads. Doesn't modify from what I can see.
    958 replies | 20547 view(s)
  • mjs513's Avatar
    01-14-2019, 08:43 PM
    Started with some of the libraries I touched so far: Comments - suggestions?
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  • mjs513's Avatar
    01-14-2019, 08:40 PM
    Tim, just curious why would you want to use elapsed micros to count to 7.2 seconds? Do you have a use case? Mike
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  • mjs513's Avatar
    01-14-2019, 08:07 PM
    I started looking at the different timers now and was going to play around with them and threw what I did to start the conversation. I can start going through the libraries and see what they are using if I can sort it...
    958 replies | 20547 view(s)
  • mjs513's Avatar
    01-14-2019, 07:23 PM
    I did a little reading (always dangerous in my case) and tried this sketch:void setup() { pinMode(3, OUTPUT); } void loop() { digitalWrite(3, HIGH); delayUS_DWT(1000000); digitalWrite(3, LOW); ...
    958 replies | 20547 view(s)
  • mjs513's Avatar
    01-14-2019, 02:12 PM
    @manitou Yep you are right - it uses pulseIN and microseconds. Unfortunately, I only have a 4 pin sensor vs a PING (3pin sensor) so data coming out is unreliable - I am using the trig and echo pin on the single PING...
    958 replies | 20547 view(s)
  • mjs513's Avatar
    01-14-2019, 12:25 PM
    @Paul NEWPING and STREAMING and PING Libraries NEWPING => simple modification to get T4 working - simple now after you all taught me a few things :) STREAMING => worked out of the box Can't find my PING...
    958 replies | 20547 view(s)
  • mjs513's Avatar
    01-14-2019, 02:40 AM
    @Frank B Remember family comes first, always, hope everything will ok. I incorporated you change but got some strange stuff going on. First, I used a scope to look at the signals: input 30Mhz = 29.41Mhz on...
    958 replies | 20547 view(s)
  • mjs513's Avatar
    01-13-2019, 08:50 PM
    Before I spend the next couple of hours search for the answer to this question, is there a way to enable std::threads (I am on a windows machined)?
    958 replies | 20547 view(s)
  • mjs513's Avatar
    01-13-2019, 05:56 PM
    @manitou / @KurtE Getting same error with serialFlash on my machine and I am pretty sure I pulled everything in.
    958 replies | 20547 view(s)
  • mjs513's Avatar
    01-13-2019, 05:09 PM
    @Paul Post #1 UPDATE SUMMARY for libraries tested so far: works Adafruit_GFX Teensyduino library version needs to be updated to latest from Adafruit works Adafruit_ILI9341 ...
    958 replies | 20547 view(s)
  • mjs513's Avatar
    01-13-2019, 04:19 PM
    CAPACITIVE SENSOR LIBRARY See post https://forum.pjrc.com/threads/54711-Teensy-4-0-First-Beta-Test?p=195401&viewfull=1#post195401 Took a break from the ILI9341 for a bit to re-test the capacitive sensor library. ...
    958 replies | 20547 view(s)
  • mjs513's Avatar
    01-13-2019, 03:37 PM
    @manitou Did something better than check the register. Put a scope on the sck line: pdof(6) = 7.547 Mhz pdof(2) = 8.000 Mhz SPI setting in the lib is 8Mhz.
    958 replies | 20547 view(s)
  • mjs513's Avatar
    01-13-2019, 03:16 PM
    @KurtE Looks like our posts are crossing somehow. That's actually further than I got with the T4 SPI so far. So you are ahead of me - at least I got the right registers :)
    958 replies | 20547 view(s)
  • mjs513's Avatar
    01-13-2019, 02:57 PM
    @KurtE and @maniou I updated the performance numbers for the Adafruit ILI9341 library in post #827. In the ILI9341_t3 lib there are a lot of pushr and popr's, it looks like there is no direct equivalent in the...
    958 replies | 20547 view(s)
  • mjs513's Avatar
    01-13-2019, 02:53 PM
    Morning Kurt Had drywalling and spackling!!!! Yep I pulled it in but still got those errors I mentioned. Seems to be overtaken by events, since once I updated the adafruit libraries really became a non-issue...
    958 replies | 20547 view(s)
  • mjs513's Avatar
    01-13-2019, 02:14 PM
    Was just getting the link he posted for his SPI lib to load it up. Was looking at the ili9341_t3 as well this morning and most of changes involve the T3.x functions pushr and popr. I will posted updated numbers after...
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  • mjs513's Avatar
    01-13-2019, 01:27 PM
    @manitou. Nice work Tom on SPI FIFO.
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  • mjs513's Avatar
    01-13-2019, 01:23 PM
    ADAFRUIT ILI9341 Libraries Was back at this morning, fresh with the ILI9341. As a test i benchmarked it against a T3.5. T3.5(120) T4 Benchmark ...
    958 replies | 20547 view(s)
  • mjs513's Avatar
    01-13-2019, 03:19 AM
    ADAFRUIT ILI9341 and GFX Libraries Well, can no longer update my previous post on testing the libraries, but I just tried to load a bitmap example and the image did not load. As you all probably know it uses...
    958 replies | 20547 view(s)
  • mjs513's Avatar
    01-12-2019, 11:59 PM
    @Paul ADAFRUIT ILI9341 and GFX Libraries Just visited the Adafruit GitHub pages for those two libraries. Looks like there was a update a couple-three months ago that add 32-bit reg support. Essentially they...
    958 replies | 20547 view(s)
  • mjs513's Avatar
    01-12-2019, 09:53 PM
    CAPACITIVE SENSOR LIBRARY Initial testing: 1. Doesn't work on a T3.2, tried as a test 2. On the T4, it does work sort of. By this I mean the values changes as I touch the copper foil, and change depending on how...
    958 replies | 20547 view(s)
  • mjs513's Avatar
    01-12-2019, 09:47 PM
    Actually other than setting up the pins not sure they are doing anything else with them in terms of graphics. The display commands and writes link back to Adafruit GFX library. Taking a quick look have to sort it out...
    958 replies | 20547 view(s)
  • mjs513's Avatar
    01-12-2019, 08:23 PM
    Adafruit_ILI9341 Starting looking at the adafruit library and was wondering if someone could explain to me what the advantages are of doing this instead of setting the pins. Guessing its faster: clkport =...
    958 replies | 20547 view(s)
  • mjs513's Avatar
    01-12-2019, 06:27 PM
    Hey Frank. Just made your change changed PDOF to 1 and the divider to 2 in spi settings. Th measured clk freq is 29.41Mhz vs 25.41mhz at current settings. Ok, missed your post. EDIT: just checked with 3. No...
    958 replies | 20547 view(s)
  • mjs513's Avatar
    01-12-2019, 04:19 PM
    Thanks Tom, and for the explanation, getting tired of looking at that manual. Too many posts, think I agree with Frank - need sub-forums. Noticed I ran a test sketch and put in various clock frequencies just to see.
    958 replies | 20547 view(s)
  • mjs513's Avatar
    01-12-2019, 04:14 PM
    @KurtE Finally learning details about SPI that I never got into before. I had downloaded your changes in the Pull request awhile ago and changing the clock in SPIsettings is working perfectly. Put together a test...
    958 replies | 20547 view(s)
  • mjs513's Avatar
    01-12-2019, 12:50 PM
    BME280 and SPI @manitou Looking at SPI.cpp looks like it is on the todo list, setClock, How for the good news, I added the delayMicros to the library and now its working. So that seemed to do the trick :) ...
    958 replies | 20547 view(s)
  • mjs513's Avatar
    01-12-2019, 12:09 PM
    Maybe this is what you are talking about Frank: https://forum.pjrc.com/threads/45823-SdFs-a-New-SD-Library-for-FAT16-FAT32-exFAT?highlight=benchmarks
    958 replies | 20547 view(s)
  • mjs513's Avatar
    01-12-2019, 01:26 AM
    Will play with the BME280 more tomorrow - getting tired and getting late.
    958 replies | 20547 view(s)
  • mjs513's Avatar
    01-12-2019, 01:21 AM
    Kurt -- Tim Since SD.h is working decided to hook up my EMIC2 text-2-speech board to the T4 and put a file on the sd card to be played by the EMIC2, figure good verification for both. Anyway, it worked, it found the...
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  • mjs513's Avatar
    01-11-2019, 11:41 PM
    I tried 12.5mhz but that didn't work. Will try 4 and 8Mhz as a test then play with delay. May have to dig deeper into what they are doing with SPI in their library. Now to rehook up the BME280 chip. EDIT: Kind of...
    958 replies | 20547 view(s)
  • mjs513's Avatar
    01-11-2019, 11:20 PM
    @Frank B You wish is my command. Hooked up a sainsmart sd card adapter and ran through all the examples. Everyone of them worked like a charm. No issues what so ever. Not sure why you said it was slow originally....
    958 replies | 20547 view(s)
  • mjs513's Avatar
    01-11-2019, 10:15 PM
    Kurt - just got my board, wow, as I was playing with SPI. I checked RX/TX/GND and they look like they ring out not sure about the other. EDIT: BME280 on SPI not working. Did a couple of sanity checks, yes it works...
    958 replies | 20547 view(s)
  • mjs513's Avatar
    01-11-2019, 06:31 PM
    @KurtE Just tried the SPI mods with a BME280 sensor and getting some very strange results - using pins 10, 11, 12, 13. Tell me that I am at 6000meters. Going to put a scope on it and see if I can sort it out - is...
    958 replies | 20547 view(s)
  • mjs513's Avatar
    01-11-2019, 04:59 PM
    Paul. Speaking from experience no matter whether you have a HR group or not its never easy. When I was in management I had to counsel, suspend, reprimand etc, and you always get that feeling when you have to do that,...
    958 replies | 20547 view(s)
  • mjs513's Avatar
    01-11-2019, 04:54 PM
    @KurtE Just tried you sketch in post #742 and it worked fine for me, just seeing the loop message on the T2 and my debug_printf is not commented out. Was also able to transmit messages from T3.2 to the T4. Modified...
    958 replies | 20547 view(s)
  • mjs513's Avatar
    01-11-2019, 02:26 PM
    @KurtE and @xxxajk: Yep - that fixed it. Had to try it, used pin2 :). Have to learn to scroll further down the page.
    958 replies | 20547 view(s)
  • mjs513's Avatar
    01-11-2019, 02:07 PM
    @manitou Going to attach a SPI device and try out some of the SPI changes to see what happens later today. Have some things to take care of today.
    958 replies | 20547 view(s)
  • mjs513's Avatar
    01-11-2019, 01:02 PM
    @xxxajk DigitalReadFast is still on the list to test. Tried your code it didn't work, with tst as a variable, but changing it to hardcode the pin number does work, i.e., have you tried putting a LED on another pin...
    958 replies | 20547 view(s)
  • mjs513's Avatar
    01-11-2019, 12:52 PM
    Tim Just order those and a couple other things as well as long as I was ordering. Not sure what to test next hmm....
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  • mjs513's Avatar
    01-11-2019, 02:28 AM
    Since going where never gone before - which ones do you have? I will pick some up
    958 replies | 20547 view(s)
  • mjs513's Avatar
    01-10-2019, 11:36 PM
    Tim: Glad you found the problem. My ground line runs are as long as yours I don't think. Don't use the T3.2 for debug any more unless I am testing something specific. Everything goes to serial. My GND connections...
    958 replies | 20547 view(s)
  • mjs513's Avatar
    01-10-2019, 09:28 PM
    Frank: Yep - no argument here. Typically I power them from separate 5v, if I have a bunch of them. For one its never been on issue when I am on my desktop.:) Tim: could be the timers, check irrecv.cpp around...
    958 replies | 20547 view(s)
  • mjs513's Avatar
    01-10-2019, 09:06 PM
    Yeah had servo on 3.3v :). Probably pulled too much power. Anyway: 1. No yellow lite flashing while servo moving for me. Using 11 for IR sensor and 9 for servo. 2. Still seeing a lot of FF's but at least the code...
    958 replies | 20547 view(s)
  • mjs513's Avatar
    01-10-2019, 08:43 PM
    Setting it up now - will update this post when done. Have bad cold my mind is in a fog - may take a little while :) UPDATE: Ok, just tested it and yeah, am seeing strange things. The servo movement seems a little...
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  • mjs513's Avatar
    01-10-2019, 07:16 PM
    I would say its just about the same.
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  • mjs513's Avatar
    01-10-2019, 06:49 PM
    Since I was on line, gave the change a try, it worked. same set up, his test sketch except with the change to startup, getting between 2545 and 2575 ticks.
    958 replies | 20547 view(s)
  • mjs513's Avatar
    01-10-2019, 06:40 PM
    @KurtE Just picked up a SSD1306 128X64 (blue and yellow) from amazon. Downloaded you PR changes and it worked like a charm with Adafruit_SSD1306/GFX libraries. At least now I have an excuse to get a whole bunch of...
    958 replies | 20547 view(s)
  • mjs513's Avatar
    01-10-2019, 03:19 PM
    @manitou Was looking through the sketch and couldn't see anything. But I noticed it looks like it reads once on startup - not continuously. For instance, if I jumper pin 14 to 3.3v it will read 1023 when I plug the...
    958 replies | 20547 view(s)
  • mjs513's Avatar
    01-10-2019, 02:34 PM
    You are right that the sketch doesn't change - just checked it. Ok - just reloaded with DMAchannel(false) and it ran - not sure that happened the first time. Have to go back and read the ADC chapter. It almost looks...
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  • mjs513's Avatar
    01-10-2019, 01:53 PM
    Just for fun I did the same thing just now and ran KurtE's sketch and worked exactly the same way. A question, I also noticed that stream.cpp wasn't in the T4 core. Shouldn't that be copied over as well?
    958 replies | 20547 view(s)
  • mjs513's Avatar
    01-10-2019, 01:22 PM
    Tom, Is this what you were expecting: 7.11 us 1 ADC1_GC 0x42 ADC1_HC0 0x7 ADC1_CFG 0x6B7 0 9 2539
    958 replies | 20547 view(s)
  • mjs513's Avatar
    01-10-2019, 12:47 PM
    TALKIE LIBRARY Just tested the Talkie library with the changes I made with a Propshield and confirms it works with a T3.5. Will submit a PR later today. EDIT: Talkie: PR Submitted. Only Toms Diner updated. ...
    958 replies | 20547 view(s)
  • mjs513's Avatar
    01-10-2019, 03:04 AM
    XBEE LIBRARY Working for Series 1 XBEE modules. Had T4 Tx'ing and Rx'ing from a T3.5 running the equivalent sketch. The problem I was having in my earlier post was due to me forgetting how to get things set up the...
    958 replies | 20547 view(s)
  • mjs513's Avatar
    01-09-2019, 09:37 PM
    __rtc_localtime Only place I found it with grepwin was in the makefile in the teensy3 directory: # linker options LDFLAGS = -Os -Wl,--gc-sections,--defsym=__rtc_localtime=0 --specs=nano.specs -mcpu=$(CPUARCH) -mthumb...
    958 replies | 20547 view(s)
  • mjs513's Avatar
    01-09-2019, 09:33 PM
    XBEE Library Been testing the XBEE library with the T4. Put the T4 in both Tx and Rx mode and used XCTU. Tested both with Series1 and Series 2 XBeeS. I have a Series1 Pro so it is a little better than regular S1's. ...
    958 replies | 20547 view(s)
  • mjs513's Avatar
    01-09-2019, 01:43 PM
    ResponsiveAnalogRead I initiated a pull request for ResponsiveAnalogRead, https://github.com/dxinteractive/ResponsiveAnalogRead/pull/20, so the getRawValue function works. In the meantime my fork has the changes...
    958 replies | 20547 view(s)
  • mjs513's Avatar
    01-09-2019, 04:40 AM
    @defragster - just went through the sdk example, getting good with the clock stuff, a down and dirty for changing the arm clock would be something like this (It needs a lot of clean up before really ready), it is...
    958 replies | 20547 view(s)
  • mjs513's Avatar
    01-09-2019, 04:13 AM
    Tim. Never tried changing the clock speed direct from the sketch only from the startup file, and that was never a problem. Didn't look close at the code for set_arm_clock but I know there are all kinds of warning...
    958 replies | 20547 view(s)
  • mjs513's Avatar
    01-08-2019, 10:15 PM
    TALKIE LIBRARY Made a minor updates and put pin 5 into the .cpp if you specify a propshield is attached. Only example updated is toms_diner. If you want to give it a try its on GitHub: https://github.com/mjs513/WIP
    958 replies | 20547 view(s)
  • mjs513's Avatar
    01-08-2019, 08:53 PM
    WOW. Thank you Paul. Pleasant surprise.
    958 replies | 20547 view(s)
  • mjs513's Avatar
    01-08-2019, 07:26 PM
    That's the beauty of the temp monitor. If the panic temp is exceed it will auto reset. On reset it the PMU_MISC1 register identifies the cause of the reset including temperature. So, if you test for that on startup...
    958 replies | 20547 view(s)
  • mjs513's Avatar
    01-08-2019, 07:09 PM
    TEMPERATURE MONITORING in CORE FILES First don't panic, unless the chip get over 95C nothing chip won't restart automatically. Attached is a zip with the changes to the core to get the tempmonitor into the core to...
    958 replies | 20547 view(s)
  • mjs513's Avatar
    01-08-2019, 02:51 PM
    ResponsiveAnalogRead Library Would say its working. Attached it to my sharp distance sensor and changed some of the parameters. But there is an error in tee library. The getRawValue should return the result of...
    958 replies | 20547 view(s)
  • mjs513's Avatar
    01-08-2019, 01:58 PM
    EASYTRANSFER LIBRARY Tested RX and TX on the T4 on Serial1,2,3,4 and 5. Worked no problem. EASYTRANSFER-I2C Tested TX on the T4 using Wire and Wire1. Worked like a charm. Couldn't test RX on the T4 as saw that...
    958 replies | 20547 view(s)
  • mjs513's Avatar
    01-08-2019, 12:42 PM
    @manitou Had this happen to me on and off depending on what I was testing. It was usually something in my sketch. After doing 13 sec reset I will compile the Blink sketch (won't autoload because I loose the usb...
    958 replies | 20547 view(s)
  • mjs513's Avatar
    01-08-2019, 01:37 AM
    Hi Tim, glad you got it working. It will good to decode remotes :) Already thinking ahead. Got the Talkie updated - don't know if you saw the post. A lot of posts since then :). Its on my WIP page :) Just tried...
    958 replies | 20547 view(s)
  • mjs513's Avatar
    01-07-2019, 09:46 PM
    Took care of it all with adding a begin call: voice.begin(PWM PIN, PROPSHIELD FLAG PWM PIN = any pwm pin (tested 8 and 9) and propshield flag on whether one is attached or not (true or false). This way if you don't...
    958 replies | 20547 view(s)
  • mjs513's Avatar
    01-07-2019, 08:47 PM
    I actually started working on a couple of things with the lib including best way to define alternate pins to use besides pin3. Not terrible but wasn't sure how far you all wanted to depart from the existing lib at this...
    958 replies | 20547 view(s)
  • mjs513's Avatar
    01-07-2019, 07:09 PM
    Yeah it was fun getting it working and then once I used writefrequency it worked right away. Its fun getting things working especially when you can figure it out - wouldn't dream of touching things like spi, i2c, or sd...
    958 replies | 20547 view(s)
  • mjs513's Avatar
    01-07-2019, 06:26 PM
    Just attached a small 8 ohm speaker that I pulled out of an old computer. Not much volume but audible. Didn't have a breadboard jack to plug in a amplified speaker. Yeah, never played with before and looked like...
    958 replies | 20547 view(s)
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About mjs513

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About mjs513
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New York
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Robotics, Image Processing
Occupation:
Aerospace Eng (Retired)

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