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    Topics created by mrburns42

    • M

      SPM1423 "I2S" Microphone U089 Quirks
      Modules • • mrburns42

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    • M

      Load Micropython on M5 Stamp Pico
      Micropython • • mrburns42

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      Yes the baud rate is correct. The characters are not random. They appear to be a CRC error and it is being sent in hex rather than ASCII. Anyway, I found that if I loaded the ESP32 generic binary file then it works. At least I can get to a Micropython REPL prompt. Of course, this version is probably going to me missing the libraries that I will need. I guess I will have to build my own binary version.
    • M

      Ultrasonic U098 Sensor Datasheet
      Units • • mrburns42

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      @mrburns42, I can't help with the datasheet, I too failed to locate it. But what I did manage to find is a library for a similar sensor, which allowed me to use the M5Stack ultrasonic sensor on I2C connected to a Micro:bit (with 5V carrier board and 3v3 to SCL and SDA). If you have look at the repo below there is a little more info on the address, byte size and data type and more, see SR04_I2C.ts file, which worked for me. Sensor details: https://www.sgbotic.com/index.php?dispatch=products.view&product_id=3028#:~:text=Instead of the common GPIO,easy method of distance measurement. Associated Git repo: https://github.com/SGBotic/pxt-SGBotic-SR04-I2C