desk-andon

Programmable Desktop Tower Light
git clone https://git.sinitax.com/sinitax/desk-andon
Log | Files | Refs | Submodules | sfeed.txt

notes (444B)


      1V_GS,LOW  = V_DD - (V_DD - V_CC - V_TVS) * (R2 / (R1 + R2)) 
      2V_GS,HIGH = V_DD - V_DD * (R2 / (R1 + R2))
      3
      4V_TVS ~= 6.3 V
      5
      6V_DD = 0.6 * (1 + R1 / R2) = 0.6 * (1 + 100 / 5.1) = 12.4 V
      7V_GS,LOW  = 12.4 - ((12.4 - V_TVS) * (100 / (100 + 10)) + V_TVS) = 0.55 V
      8V_GS,HIGH = 12.4 - 12.4 * (100 / (100 + 10)) = 1.13 V
      9
     10V_GS,TH = 0.6-0.7
     11
     12Default stdio driver flushes after newline. May sleep for 50ms
     13when the tx fifo is full, but generally unbuffered.