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      The Voyager Sailing Drones are a long-term hobby project to develop ocean-going autonomous sailing drones. They are 4 feet and 6 feet in length, constructed using fibreglass over foam core, with a central stringer and keel encasement, similar to...
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      I cant give you a code snippet since you posted an image instead of text, but to fix the logic I think you need to include the braces but put the close brace between the powerheater = ... line and the first Serial.print
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      thebigg replied to the thread Overflowing RAM.
      This problem was reported a while ago. It is marked as fixed but I guess the fix will only be rolled out with the next Teensy release (real soon now)
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      OH! is a sculpture/controller for the lights on the geodesic dome at the Telus World of Science in Vancouver, Canada. It was built by me and several others at Tangible Interaction in Vancouver. I did the firmware, sensors/EDA, wiring, PureData...
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      If you look at the source for SDClass::open(), you will see that the only supported value for mode are: FILE_READ - which sets flags to O_READ FILE_WRITE - which sets flags to O_RDWR | O_CREAT | O_AT_END and FILE_WRITE_BEGIN - which sets flags...
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      OK. You surely need to wait for some period between sending the "#f" command and receiving the data. At the moment this code Serial1.print("#f"); if (Serial1.available() > 0) {Serial1.readBytes((byte*)q_encoder_1, sizeof(q_encoder_1))...
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      Does is behave correctly if you call Serial1.flush(); immediately after Serial1.print(...) to ensure that the text has actually been sent?
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      100 ohms is a good starting point. Important to place it close to the transmitter. If using a 4+ layer PCB that has an unbroken ground plane directly underneath the traces and especially with wider traces, you might want a somewhat lower...
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      Any user code can be marked with the FLASHMEM attribute so that it runs from FLASH. This is helpful in memory constrained systems where the total amount of runnable code does not fit into RAM1
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      F() is essentially a noop on teensy. See WString.h for its definition
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      thebigg reacted to chipaudette's post in the thread Notch filter for feedback? with Like Like.
      Feedback cancelation is a very, very tricky subject with a LONG history of technical development. So, don't expect a silver bullet that'll make the problem go away entirely. Before you move to algorithms, you should first try to acoustically...
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      thebigg replied to the thread Very high code RAM usage.
      What optimization are you using? I have found that GCC using _FASTEST or even just _FASTER can result in some huge code size bloat for sometime negligible speed benefits
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      thebigg reacted to shawn's post in the thread Call to arms | Teensy + SDRAM = true with Like Like.
      Misc. ramblings: Using a namespace for what you’re doing here is actually more appropriate. But, if you use a class, do these instead: 1. Make the constructor private. 2. The constructor does not have to be constexpr because theres no non-static...
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      Hi! I'm associated with the "Tympan" project, which is what was referenced in one of the links above. Our mission is to produce an open platform for developing algorithms for hearing aid research, a platform that is approachable by...
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      thebigg replied to the thread SPI bus malfunctioning.
      Does the trace look any different if you arrange your code like this SPI.beginTransaction(SPISettings(2000000, MSBFIRST, SPI_MODE1)); digitalWrite(slaveSelectPin, LOW); // take the SS pin low to select the chip: stat = SPI.transfer(0x00)...
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      thebigg replied to the thread Teensyduino 1.59 Beta #4.
      Using the instructions here (thanks @shawn) , I installed 1.59B4. All my projects compiled cleanly. Linux 6.6.3, pio 6.1.11.
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      I may be wrong, but I've always thought that the reason for cutting the trace was to protect the PC, not the teensy. I imagine some PCs might not be too happy with >5V being delivered at USB Out
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