Re: The joy of FORTRAN

On 11/03/2025 09:22, c186282 wrote:

On 3/10/25 2:18 AM, rbowman wrote:

On Sun, 9 Mar 2025 22:50:20 -0400, c186282 wrote:
>

    For a long time, the only electronics place was a "Lafayette" -
    albeit 15 miles away in the next town. The corp still exists, but
    it's online-orders only :
>
    https://www.lafayetteelectronicsupply.com/

>
Other than a guy with a cellar full of salvaged parts there wasn't much
local so it was mail-order from Lafayette or Allied. Then there was the
adventure when I was building a CD ignition (not a common thing in the
late '60s) and needed some ferrite cores. My cousin knew a guy who knew a
guy... and I wound up at a garage operation in Kingston. IBM always had
their eye on monopoly investigations so the backwoods of NY were filled
with cottage operations they had spun off.
>
>

    Looking at building a small FM transmitter wired to my mail-box.
    Being right at the road, and a bit away, it's useless trying to do
    image-ID and there is no hope of getting power out there.

>
Just for an alert? How far? I'd probably use a couple of Picos or even
Arduinos with nrf@$L01 modules.
>
https://howtomechatronics.com/tutorials/arduino/arduino-wireless-
communication-nrf24l01-tutorial/
>
and a PIR to detect when the box was opened.
>
https://learn.adafruit.com/pir-passive-infrared-proximity-motion-sensor/
using-a-pir-w-arduino
>
The receiver in the how could blink LEDs, buzz, or whatever. For real sex
you could use neopixels for a pulsating rainbow effect.
>
https://www.adafruit.com/category/168

    Picos and friends require constant power input.
   Not possible.
 

Not always.
You can get modules that will cut the power for a period of time and then reboot the pico
The pico does its stuff and then flips a kill switch which restarts the timer
--
Of what good are dead warriors? … Warriors are those who desire battle more than peace. Those who seek battle despite peace. Those who thump their spears on the ground and talk of honor. Those who leap high the battle dance and dream of glory … The good of dead warriors, Mother, is that they are dead.
Sheri S Tepper: The Awakeners.