Search found 35 matches

by rodmcm
Thu Oct 17, 2019 7:41 am
Forum: ESP32 Arduino
Topic: ESP32 RC War tank toy with android App
Replies: 4
Views: 315

Re: ESP32 RC War tank toy with android App

B4a and bluetooth
by rodmcm
Thu Oct 17, 2019 7:38 am
Forum: ESP32 Arduino
Topic: Digital Input
Replies: 2
Views: 107

Re: Digital Input

I should have read your code better

You have to attach the interrupt to Pin 14 in the setup, not call it in the Interrupt routine
See
attachInterrupt( , ,)
Google
ESP32 with PIR Motion Sensor using Interrupts and Timers
by rodmcm
Thu Oct 17, 2019 7:35 am
Forum: ESP32 Arduino
Topic: Digital Input
Replies: 2
Views: 107

Re: Digital Input

Have you tried something simple like a print statement in the interrupt routine to see if it's working?

Serial.println(micros());
by rodmcm
Thu Aug 22, 2019 7:37 am
Forum: ESP32 Arduino
Topic: Esp32 update attached arduino?
Replies: 3
Views: 319

Re: Esp32 update attached arduino?

You can program an arduino through the serial port so you should be able to make the ESP32 act as a data pipe, however you've got to get the new compiled program out of the IDE into the BT or WIFI connection to the ESP.
by rodmcm
Wed Jul 03, 2019 4:13 am
Forum: Hardware
Topic: ESP32 stops working for no apparent reason in field
Replies: 15
Views: 1353

Re: ESP32 stops working for no apparent reason in field

Looks like a continuous reset. Perhaps a pull up resistor on the Reset line.
by rodmcm
Wed Jul 03, 2019 4:09 am
Forum: Hardware
Topic: Bluetooth OutPut Power Modulation
Replies: 0
Views: 143

Bluetooth OutPut Power Modulation

I am seeing bad data on an Android Tablet receiving Bluetooth data from an ESp32 that has an external aerial. If I move the tablet away from the ESP then I get a better, but still not great, good data transfer. Is it possible that the BT output send signal is 'swamping' the receiver in the tablet? I...
by rodmcm
Wed Jun 26, 2019 9:13 am
Forum: ESP32 Arduino
Topic: Reading Multiple I2C sensors on ESP32
Replies: 3
Views: 455

Re: Reading Multiple I2C sensors on ESP32

Probably the reason that no one has answered you is that there are hundreds of answers to this on a simple Google search
by rodmcm
Wed Jun 26, 2019 9:11 am
Forum: ESP32 Arduino
Topic: ESP32 Configuration File
Replies: 3
Views: 674

Re: ESP32 Configuration File

You may be able to do this through storage to the onboard EEPROM.. Search programs to asses this
by rodmcm
Thu Jun 20, 2019 9:14 am
Forum: ESP32 Arduino
Topic: ESP32 I2C read issue
Replies: 1
Views: 286

Re: ESP32 I2C read issue

The sensor, if it is I2C compatible should have a singular or range of addresses that can be used to read and write to it. If you cannot find this in a manual then search for 'I2C Scanner" this program will register all of the I2C nodes connected. http://www.ti.com/lit/ds/symlink/adc121c021.pdf Inte...
by rodmcm
Mon May 20, 2019 8:51 am
Forum: ESP32 Arduino
Topic: Send data from one ESP32 to another
Replies: 6
Views: 1410

Re: Send data from one ESP32 to another

If you search this site you will find that using WIFI with Bluetooth is almost impossible due to the large compiled size of the two together. I have overcome this only by using two ESp32'a one for the WIFI connection and one for the bluetooth with a standard hardwired serial in-between There seems ...

Go to advanced search