Search found 16 matches

by rodmcm
Wed Sep 12, 2018 11:11 pm
Forum: ESP32 Arduino
Topic: AnalogRead interferes with Digital Interrupt
Replies: 1
Views: 159

AnalogRead interferes with Digital Interrupt

I have deduced that reading an analog under a timed interrupt interferes with my digital interrupt. A Google search shows others have had this problem as well.. I tried some of the workarounds but no success Has anyone a proper solution for this. The attached code is a much simplified program. If th...
by rodmcm
Wed Sep 12, 2018 9:11 am
Forum: ESP32 Arduino
Topic: How to cancel the Interrupts Stack?
Replies: 6
Views: 341

Re: How to cancel the Interrupts Stack?

Hi Could you please explain a little more on the stacking and halting please. I am using a timer interrupt and a digital pin interrupt. Both will not work together but they each run fine alone.. If run together then the onTimer operates but the handeInterrupt seems to just report a constant count. T...
by rodmcm
Tue Sep 11, 2018 11:24 am
Forum: ESP32 Arduino
Topic: Questions about the WiFi library
Replies: 2
Views: 208

Re: Questions about the WiFi library

You could set up the ESP as an AP network and have a direct access that way, or else have a phone APP search and connect to the ESP.
by rodmcm
Tue Sep 11, 2018 8:56 am
Forum: ESP32 Arduino
Topic: Timer Interrupt problem Digital and Analog sampling
Replies: 0
Views: 95

Timer Interrupt problem Digital and Analog sampling

I have posted code on this forum to allow the calculation of frequency from a square wave on a digital input . Works absolutely fine. I have also code to sample an analog based on a timer interrupt. This also works fine, giving me 750 samples for each analog, and sequencing between 4 analogs (I'm wo...
by rodmcm
Fri Aug 10, 2018 3:16 am
Forum: ESP32 Arduino
Topic: Are all ESP32's created the same??
Replies: 8
Views: 499

Re: Are all ESP32's created the same??

I also have had similar reboot problems which seems to be due to the USB connected power supply. Once the ESPs are powered remotely with a stable supply no problems.. There is quite a power draw when the ESP connects to WIFI and it looks as if the USB power supply was limiting the unit. Been using E...
by rodmcm
Tue Jul 24, 2018 9:56 pm
Forum: ESP32 Arduino
Topic: Frequency Measurement on digital input
Replies: 6
Views: 513

Frequency Measurement on digital input

Enclosed is a program to measure the frequency of a square wave on a digital input. The program uses a free running timer/counter and digital interrupts. Hope this assists someone out there.... /* Measures the frequency of a square wave appliet to a digital input Uses a free running timer/counter fo...
by rodmcm
Fri Jun 01, 2018 12:20 am
Forum: ESP32 Arduino
Topic: ESP32 Github Core-- Is this a joke
Replies: 6
Views: 970

Re: ESP32 Github Core-- Is this a joke

True
But I would suggest that you go through git.exe on a clean installation and look at it from a 'normal arduino' users perspective..
by rodmcm
Fri Jun 01, 2018 12:18 am
Forum: ESP32 Arduino
Topic: ESP32 not recognized by PC. No COM port problem!
Replies: 5
Views: 1595

Re: ESP32 not recognized by PC. No COM port problem!

Yes you are correct about the variety of USB cords
The problem is I am using the same cord to program other units
by rodmcm
Thu May 31, 2018 3:13 am
Forum: ESP32 Arduino
Topic: ESP32 Github Core-- Is this a joke
Replies: 6
Views: 970

ESP32 Github Core-- Is this a joke

Late last month I went through the , IMHO, crazy setup of the ESP32 into the Arduino IDE. This morning I updated using the same system. Maybe I am naive and old fashion but I understood that the whole basis of the Arduino environment was to provide a low tech high level entry into the AVR world. Thi...
by rodmcm
Thu May 31, 2018 1:00 am
Forum: ESP32 Arduino
Topic: ESP32 not recognized by PC. No COM port problem!
Replies: 5
Views: 1595

Re: ESP32 not recognized by PC. No COM port problem!

I just purchased a new ESp32 yesterday and have exactly the same problem..I can see the USB connection and the correct port. The unit broadcasts an AP SSID of ESP_85EE26.
I cannot get any other activity...