How do you like the Woodstock calculators?

[Thomas Klemm]

(04-01-2022 05:20 PM)Tom Flatterhand Wrote:  Only here I have again taken a little further:

https://steinlaus.de/licht-messen-mit-de...ngsteiler/

I hope it's all true what I wrote there. :-)

That's a nice blog that you have. Thanks for sharing.

Quote:Festwiderstand: Bei 100 Ohm fällt am Lichtwiderstand eine Spannung zwischen 3.26 und 3.29 Volt ab.

That first value should be 1.65 instead of 3.26.
If both resistors are 100Ω they divide the 3.3V evenly.

Also most circuits measure V_out over the fixed resistor so that voltage increases as light increases:


But what do I know?

(04-01-2022 05:20 PM)Tom Flatterhand Wrote:  Because of your short GGT code I felt obliged to program the GGT again.

Here's a variant that uses one register:

Code:

01: 15 13 00 : g LBL 0
02: 23 00    : STO 0
03: 21       : x<->y
04: 31       : ENTER
05: 31       : ENTER
06: 24 00    : RCL 0
07: 71       : /
08: 14 62    : f INT
09: 24 00    : RCL 0
10: 61       : *
11: 41       : -
12: 15 61    : g x<>0
13: 13 00    : GTO 0
14: 24 00    : RCL 0
15: 15 12    : g RTN

My favourite program for the HP-29C is: Prime numbers up to 10'000.