Version 6
    Get to Know Your ADC with a DIY Temperature Probe

    element14 Presents  | Derek Brodeur's VCP Profile  | Project Videos

     

    As makers and engineers, we frequently incorporate microcontrollers, single board computers, and external sensors into our projects. This often requires that we interface our digital circuitry to the analog world. But do you really know what’s going on under the hood of that ADC you’re using? In this video, I cover the basics of using an ADC and focus on the successive approximation register ADC. With that knowledge, we put together a DIY temperature probe using an analog temperature sensor, custom enclosure and a novel method of turning the unit on and off.

     

     

    Bill of Materials

     

    Product NameManufacturerQuantityBuy KitBuy Kit
    Silicon Labs Busy Bee 8-bit MCUEFM8BB10F2G-A-QFN20R1Buy NowBuy Now
    RED LED - 0805HSML-C170-T00001Buy NowBuy Now
    Omron - 120 Ohm 0603 ResistorsESR03EZPJ1219Buy NowBuy Now
    Vishay - 10k Ohm 0603 ResistorCRCW060310K0FKEA1Buy NowBuy Now
    Samsung - 4.7uF/25V 0603 MLCCCL10A475KA8NQNC1Buy NowBuy Now
    AXV - 0.1uF/50V 0603 MLCC06035C104K4T2A1Buy NowBuy Now
    Microchip - MCP9700 Analog ThermistorMCP9700-E/TOMCP9700-E/TO1Buy NowBuy Now

     

    Additional Parts:

     

    Product Name

    Custom Enclosure

    Custom Lexan Window

    3-digit 7-segment bubble display

    (qty 2) CR2032 Coin Cells