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make_your_own_arduino [2018/12/01 14:49]
sdh7
make_your_own_arduino [2019/07/25 17:02] (current)
sdh7
Line 24: Line 24:
   * Basics of soldering in case anyone is a new solderer.   * Basics of soldering in case anyone is a new solderer.
   * Resistors ​   * Resistors ​
-    * 1K (bigger, brown-black-red)+    ​* Resistors resist the flow of current.  
 +    ​* 1K (bigger, brown-black-red) ​- this one keeps the LED from burning out and/or being blindingly bright
     * 10k (smaller, brown-black-orange)     * 10k (smaller, brown-black-orange)
   * IC socket   * IC socket
Line 30: Line 31:
     * Tack first pin in, then adjust fit as needed     * Tack first pin in, then adjust fit as needed
   * Capacitors   * Capacitors
 +    * Capacitors store a charge. ​
     * 18pF (2) (have black splotch across the top) - in the XTL & Caps area just above the microcontroller.     * 18pF (2) (have black splotch across the top) - in the XTL & Caps area just above the microcontroller.
 +      * These along with the crystal make up the timing circuit for the microcontroller.
     * .1 uF (3) - two in the top left corner, one just above the microcontroller. The one in the lower left corner can be ignored unless you want to add a 2.1mm power input and 7805 voltage regulator.     * .1 uF (3) - two in the top left corner, one just above the microcontroller. The one in the lower left corner can be ignored unless you want to add a 2.1mm power input and 7805 voltage regulator.
 +      * These function as "​decoupling capacitors"​ and smooth out any irregularities in the power
   * Switch - RST   * Switch - RST
   * LED - Square Hole + (long lead)   * LED - Square Hole + (long lead)
make_your_own_arduino.txt · Last modified: 2019/07/25 17:02 by sdh7