Arduino Talking Points: (04/07/2021)
Walt -W7PRB and the QST Article and the "KIT"
Having worked with a number of Controllers and Hardware Emulators ...
"now, I'm Hooked on Arduinos"
See ( https://www.arduino.cc/en/Main/Products )
UNO, MEGA, NANO, Kits
+5V USB vs +9V Power Input
+3.3V to CPU
Tri-State Bi-Directional I/O Pins (and PU's)
0 to +5V Analog Inputs (no Analog Outputs)
LEDs still require current-limiting resistors (nothing magical about 330 Ohm)
Re-thinking the parallel LCD connections (Library Requirements)
Serial 3-Wire LCDs
Serial 4-Wire LCDs (with ID codes, 0x2F or 0x3F)
Stepped PBs for Relay Controls
Controlling a 5x7 Matrix Display
Shields (Direct Pluggable)
Sketches (Program Routines)
The Nuences of the Parallel LCD and the PCB Interface Module
Long Run – 4 Holding Tracks
Voltage Monitoring for the 4 Banks of Edison Cell Batteries (Nickle-Iron)
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