Search found 65 matches

by rodmcm
Sat Oct 29, 2022 11:35 pm
Forum: ESP32 Arduino
Topic: esptool: No such file or directory
Replies: 1
Views: 1503

Re: esptool: No such file or directory

I have this in my additional boards manager URLS

https://dl.espressif.com/dl/package_esp32_index.json

I'm on Mojave though
by rodmcm
Mon Oct 24, 2022 12:53 am
Forum: ESP32 Arduino
Topic: Why my ESP32 burned?
Replies: 2
Views: 2160

Re: Why my ESP32 burned?

Yes you are propably right the relay takes too much current for the DO
Why do you need this relay anyway
If you do need it why not use a simple transistor to run the relay. This uses 12V but 5V relay will do what you want
Capture.PNG
Capture.PNG (6.88 KiB) Viewed 2146 times
by rodmcm
Mon Oct 17, 2022 4:57 am
Forum: ESP32 Arduino
Topic: get activity on the UART line
Replies: 1
Views: 1257

Re: get activity on the UART line

Serial.available() returns the number of bytes available to read.
by rodmcm
Sat Oct 15, 2022 12:37 am
Forum: ESP32 Arduino
Topic: Pairing a Bluetooth Classic 2.0 trackpad with the ESP32. Possible? Simple?
Replies: 5
Views: 3079

Re: Pairing a Bluetooth Classic 2.0 trackpad with the ESP32. Possible? Simple?

Have a look at this. Ordinary SPP may not assist
https://learn.sparkfun.com/tutorials/bl ... h-profiles

Did you connect with the App I suggested? It is SPP.
by rodmcm
Sat Sep 10, 2022 11:11 pm
Forum: ESP32 Arduino
Topic: Pairing a Bluetooth Classic 2.0 trackpad with the ESP32. Possible? Simple?
Replies: 5
Views: 3079

Re: Pairing a Bluetooth Classic 2.0 trackpad with the ESP32. Possible? Simple?

Try using a cell phone app like "Bluetooth Terminal HC-05"
If you can pair and receive data with this from the trackpad then you can do it with an ESP32.
Its my goto App for looking at data streams from BT
by rodmcm
Sat Sep 10, 2022 11:08 pm
Forum: ESP32 Arduino
Topic: Using 5V of L298N to feed ESP32
Replies: 2
Views: 1616

Re: Using 5V of L298N to feed ESP32

Can you show schematic of how the ESP32 gets supplied. ESP32 are 3.3V. I assume you have regulator inbetween. What is the input range of the requlator. See previous answer
by rodmcm
Sat Sep 10, 2022 11:04 pm
Forum: ESP32 Arduino
Topic: i need an expert to validate the code for ESP32 ARDUINO
Replies: 2
Views: 1530

Re: i need an expert to validate the code for ESP32 ARDUINO

I assume that you are using classic bluetooth to receive data? If so have you has a look at the data stream? Have you implemented routines to make sure that all the bytes of a single message are transferred and received. From my experience BT often breaks byte transfers and hence the receiver cannot...
by rodmcm
Thu Jul 14, 2022 12:59 am
Forum: ESP32 Arduino
Topic: ESP32 UART Hardware Serial Ports Help
Replies: 16
Views: 15975

Re: ESP32 UART Hardware Serial Ports Help

I use Pin 34 for RXD-0 35 for TXD-0 27 for RXD-2 28 for TXD-2

Works fine
Have you seen this?
by rodmcm
Tue Dec 07, 2021 3:42 am
Forum: ESP32 Arduino
Topic: Model of ESP32
Replies: 1
Views: 5660

Re: Model of ESP32

Two different manufacturers?