Updates This Month

• Added info on SPI peripherals with shared MOSI/MISO pins.

  

• Added a new page on Elastomeric connectors.

  

• Added a new page on the RP2040 microcontroller from Raspberry Pi Ltd.

  

• Added more info on MX circular connectors.

• Added info on UART frame structure.

  

• Added info on MQTT-SN (MQTT for Sensor Networks).

• Added info and diagrams on SPI CPOL and CPHA settings, incl. example byte transfers.

  

• Added a new page on the Kalman Filter (still in notes form).

Updates This Month

• Updated the PID Control page.

• Added more info on SMA filters, including the recursive SMA algorithm and plots showing SMA filters working on noisy data. Also moved info on moving average filters onto it’s own page.

• Added info on the impulse response of a IIR EMA filter.

• Added info on handling embedded firmware errors in C++ constructors.

Updates This Month

• Added a new page on the SOD-882 component package.

• Updated the info on the SOT-883 component package.

• Updated info on the WSON component package.

• Added more info on CAN bus errors and error handling/fault confinement.

• Added a new page on the Macro X component package.

• Updated the info on the LGA component package.

• Added more info on non-standard QFN packages.

• Added info on the Bourns The Potentiometer Handbook.

• Added graphs and equations on potentiometer tapers and info on potentiometer independent linearity.

• Added info/waveforms on power management IC UVLO/OVLO.

• Added image of a wirewound resistor.

• Added a new page on the SOT-143 component package.

• Created a new page called Protecting IO Lines From ESD.

• Added a donation button and the Creative Commons Attribution 4.0 International License to all content pages.

• Started working on a new page with info on Delta-Wye resistor networks.

• Added more info to the MiniMELF Component Package page.

  

• Added info on average rectified forward current for general purpose diodes.

  

• Added info on the ARIES Correct-A-Chip series of breakout boards/IC adapter PCBs.

  

• Added info on adding a high-value parallel feedback resistor to 32.678kHz crystal tracks to prevent start-up problems in humid environments.

  

• Started a page on test jigs.

• Added info on backfeeding through UART TX/RX lines.

  

• Added info on adding pull-up resistors to UART TX/RX lines to prevent spurious garbage being transmitted during microcontroller resets.

  

• Added more info on voltage-level translator ICs.

  

• Added info on CMOS totem-pole drivers with added power off protection.

  

• Updated the info on the SOD-523 Component Package.

• Added more information on CAN arbitration, incl. waveforms.

  

• Created a new page on the RS-422 communication protocol.

  

• Added a new page on gel crimp connectors.

  

• Added info on getting the number of RX bytes available in a serial port on Linux.

  

• Published a new release of CppLinuxSerial (v2.4.0) with the following updates:

  • Added Available() method to return number of bytes ready to be read from the receive buffer (thanks lotricekCZ).
  • Added CMake option for shared library (thanks lotricekCZ).

• Published a new release of NinjaCalc with various version bumps of dependencies to fix security vulnerabilities, and a colour scheme update (to match the red used on this blog).

  

• Added a new page on photodiodes.