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      KenHahn replied to the thread GPS not working with Teensy 4.1.
      I haven't used it, but the Ultimate Breakout GPS looks to be a 3.3V device with 5V tolerant inputs. https://www.adafruit.com/product/746 You can power it from 5V as it has a 3.3V regulator built-in, but you don't need to level shift the...
    • K
      I was curious and have lots of test cases laying around, so I ran a few tests at132.9MHz as reported by the software using the PJRC PSRAM test combined with a simple Flash test that formats the Flash and writes/reads a file. 8MB APMemory =...
    • K
      The 3144 Hall Effect sensor itself requires at least 4.5V power. Perhaps try powering the module from 5V and pull the output up to 3.3V as you have it for compatibility with the T4.0 to see if it helps to stabilize the readings.
    • K
      KenHahn replied to the thread Power problems with T4.
      You are asking too much from a 9V battery. Teensy 4.0 by itself draws about 100mA. 9V batterys have high internal resistance and are not designed to supply that much current. Here is a website which shows some 9V batteries with 100mA (and...
    • K
      KenHahn reacted to Sandro's post in the thread Winbond W25Q512 Flash support with Like Like.
      Checking again... SerialFlashChip.cpp does not need any change for W25Q512. Just to correct the first post of this thread, using 25Q512JVFM the ID is: id[0]:239 id[1]:112 id[2]:32 (not "56" that I had read with a wrong connection..)
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