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Topic starter
2022-03-15 9:25 pm
It was the boot button that needed to be pressed. It is now working on the ESP32 and I have lot's of pins available. I will now close this thread, once again thanks to all who helped.
First computer 1959. Retired from my own computer company 2004.
Hardware - Expert in 1401, and 360, fairly knowledge in PC plus numerous MPU's and MCU's
Major Languages - Machine language, 360 Macro Assembler, Intel Assembler, PL/I and PL1, Pascal, Basic, C plus numerous job control and scripting languages.
Sure you can learn to be a programmer, it will take the same amount of time for me to learn to be a Doctor.
Topic starter
2022-03-17 3:49 pm
I want to wrap up this quest with a little more information for any new folks that may have the same educational gaps as me.
I found on the espressif site https://docs.espressif.com/projects/esp-idf/en/latest/esp32/api-reference/peripherals/gpio.html?highlight=gpio%20pull%20up this little tidbit
Only pins that support both input & output have integrated pull-up and pull-down resistors. Input-only GPIOs 34-39 do not.
then using the randomnerd's excellent pinout diagram was able to identify all my choices for input only, or input/output.
https://randomnerdtutorials.com/esp32-pinout-reference-gpios/
I had to abandon the ESP8266 as it did not have enough pins by far (I need 10 out and 5 in)
The resistors are enabled by the statement, pinmode( pin, INPUT_PULLUP or INPUT_PULLDOWN);
I hope that wraps it up, but if this feeble brain forgot something let me know.
Special thanks to @ronbentley1 who has some excellent material on Link
also a shout out to @will, @davee @robot_builder and @inst_tech for their input.
First computer 1959. Retired from my own computer company 2004.
Hardware - Expert in 1401, and 360, fairly knowledge in PC plus numerous MPU's and MCU's
Major Languages - Machine language, 360 Macro Assembler, Intel Assembler, PL/I and PL1, Pascal, Basic, C plus numerous job control and scripting languages.
Sure you can learn to be a programmer, it will take the same amount of time for me to learn to be a Doctor.
DaveE reacted
2022-03-17 5:29 pm
😊👍
Ron Bentley
Creativity is an input to innovation and change is the output from innovation. Braden Kelley
A computer is a machine for constructing mappings from input to output. Michael Kirby
Through great input you get great output. RZA
Gauss is great but Euler rocks!!
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