Kevin Braun

An electronic hardware developer in Silicon Valley, CA USA

Kevin’s activity

Question asked: DISCO-L475VG-IOT01A board and mbed-os 5.12.1 with OnLine compiler: The compiler works without error, but the linker gets this fatal error about 80% of …
Kevin Braun - 16 Apr 2019
Question asked: I2C devices on the DISCO-L475VG-IOT01A board: In doing an I2C scan of the L475 board, I found a couple oddities: 1. …
Kevin Braun - 01 Mar 2019
Question How do I choose mbed OS versions? marked as solved by answer: Paul, For os5 using the CLI, go to the sub-folder that contains mbed-os and execute: …
Kevin Braun - 19 Feb 2019
Question asked: F429ZI example Nucleo_sinewave_output with crashes with mbed-os: Hello, I added an Ticker to the DAC output in order to guarantee consistent output …
Kevin Braun - 12 Feb 2019
Question asked: Using FatFileSystem with NUCLEO_F429ZI: Hello, I would like to use FATFileSystem together with SDBlockDevice. I realize that there is …
Kevin Braun - 11 Feb 2019
Question asked: mbed-os5 v5.11.3 gets online compiler error on L475VG: Hello, The following online compiler error occurs with 5.11.3 Error: Undefined symbol sleep_manager_lock_deep_sleep_internal (referred from …
Kevin Braun - 01 Feb 2019
Answer posted for Question: Read file via SPI - Hi Javier, I use FATFileSystem together with SDBlockDevice in my K64F. See the example at …
Kevin Braun - 14 Jan 2019
Library updated: i2cDevices - General I2C device updates
Kevin Braun - 10 Jan 2019
Question asked: How to use the "external" I2C on the L475VG: Hello, I cannot get the Arduino "external" I2C working on the L475VG. After successful compile …
Kevin Braun - 04 Dec 2018
Reply to Compiler Down - I am having the same issues. If it does compile successfully, it is an old …
Kevin Braun - 03 Dec 2018

Kevin’s public repositories

  • Mbed 2 deprecated
    AnalogMeter-100

    - ANALOG METER, initial offering - Emulation of an analog/mechanical meter using the SPI TFT display \"http://mbed.org/cookbook/SPI-driven-QVGA-TFT\" (touch not used) Meter takes an integer number from 0 - 100 and …

    SPI, TFT
    Last updated: 31 Jan 2012 1 78
  • bme280

    Multi environmental sensor

    Altimeter, barometer, Humitity, I2C, Temparature
    Last updated: 22 Apr 2016 4 166
  • bq27220

    TI BQ27220 I2C based, battery State of Charge and Coulomb Counter

    Battery, I2C
    Last updated: 31 Jul 2017 4 2
  • Mbed 2 deprecated
    DDS60-105

    Programming of the DDS-60 (AD9851) frequency synthesizer from AmQRP http://midnightdesignsolutions.com/dds60/index.html I had to use long, floating math in order to get accurate frequency output.

    DDS
    Last updated: 04 Apr 2012 1 29
  • Mbed 2 deprecated
    DISCO-F746NG-clockSet

    Demo program for setting up RTC via the touchscreen on the F746

    F746NG, RTC, Touchscreen
    Last updated: 04 Mar 2016 1 257
  • ds3232m

    Library for Maxim DS3232M super-accurate, I2C based Real Time Clock chip with 234 bytes of user RAM. Library includes user RAM read/write operations along with CRC routines for accessing the …

    clock, DS3232, I2C, RTC, time
    Last updated: 11 Mar 2016 7 12
  • Mbed 2 deprecated
    ds3232m_HelloWorld

    DS3232M RTC demo program. Tested on the K64F (this example) and the KL25Z, but should work on any platform by changing the SDA and SCL pins. USB serial baud rate …

    DS3232, I2C, K64F, KL25z, RTC
    Last updated: 11 Mar 2016 5 60
  • Mbed 2 deprecated
    HTTPserver-1

    Last updated: 09 Dec 2009 1 12
  • htu21d

    Library for the Measurement Specialties' HTU21D Humidity and Temperature sensor. Code includes device's heater on/off control, serial number access, dew point calculations and RTOS hooks. To date, code tested on …

    GR-PEACH, HTU21D, Humidity, I2C, K64F, KL25z, Temperature
    Last updated: 30 Apr 2015 4 331
  • i2cDevices

    I2C device discovery and printout of known device names

    I2C
    Last updated: 10 Jan 2019 1 7
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