On Wed, 27 Aug 2025 12:02:20 +0200, J.F wrote:

no to jeszcze taki jeden mały test ChatGPT:

"-what is pinout of 74HC595

The 74HC595 is an 8-bit shift register with an output latching
capability, commonly used in digital circuits for expanding the number
of output pins when interfacing with microcontrollers. Below is the
pinout for the 74HC595:

+-------+
Q7' 1 | | 16 VCC
Q7 2 | | 15 Q6
Q6 3 | | 14 Q5
Q5 4 | | 13 Q4
Q4 5 | | 12 Q3
Q3 6 | | 11 Q2
Q2 7 | | 10 Q1
Q1 8 | | 9 SER
+-------+

Pin Description:

Pin 1 (Q7'): Serial Out - The output for the last bit of the shift
register.
Pin 2 (Q7): Output 7 - The first output pin for bit 7.
Pin 3 (Q6): Output 6 - Output for bit 6.
Pin 4 (Q5): Output 5 - Output for bit 5.
Pin 5 (Q4): Output 4 - Output for bit 4.
Pin 6 (Q3): Output 3 - Output for bit 3.
Pin 7 (Q2): Output 2 - Output for bit 2.
Pin 8 (Q1): Output 1 - Output for bit 1.
Pin 9 (SER): Serial Input - The input for the first bit of data to
be shifted into the register.
Pin 10 (RCLK): Register Clock - Used to latch the data present at
the outputs.
Pin 11 (SRCLK): Shift Register Clock - Used for shifting data into
the register.
Pin 12 (OE): Output Enable - Active low, when low, the outputs are
enabled.
Pin 13 (MR): Master Reset - Active low, resets the shift register
and outputs to 0 when low.
Pin 14 (VCC): Supply Voltage - Positive power supply.
Pin 15 (GND): Ground - Connects to the negative power supply."

No ... prawie dobrze. Prawie czyni różnicę :-)

https://eduinf.waw.pl/inf/prg/010_uc/74595.php

I jaką tu ocenę dać uczniowi, który by tak odpowiedział?
1 czy 2 ? Bo chyba nie 3 ?

J.