MyoWare 2.0 wireless - No serial data

Sensors Biometrics
1

Having some issues with connecting to the MyoWare 2.0 Wireless Shield (Brand new). Arduino IDE on Windows, and Ubuntu linux on a Pi 5. Both give the same error when trying to communicate. Failed to connect to ESP32: No serial data received.

installed this stuff Note: At the time of writing we were using the following versions for the Arduino IDE, ESP32 board definitions, and ArduinoBLE Arduino Library:

  • Arduino IDE v2.3.2
  • esp32 by Espressif Systems v2.0.14
  • ArduinoBLE by Arduino v1.3.6
  • MyoWare Arduino Library v1.0.0

Different versions of Espressif ESP32 3.2, 2.0.17, and 2.0.14 all with the same results
different baud. different cables. I had no issue installing the sketch necessary for the ESP32-Wroom thing plus C.

Is there a different way to see if the wireless board is DOA?

2

Are your switches like this?

image
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Try another USB cable and/or usb port also

Is your board selection menu, ensure Tools > USB CDC on Boot > Enabled is selected

3

If other ESP32 boards work and you’re still getting no serial data from the MyoWare shield, even after trying bootloader mode, it’s likely a hardware issue. Could be DOA the best to contact support or try swapping it if possible.

4

Yes, switches match the provided photo.
USB CDC on Boot is not available on standard ESP32 Dev Module (as per https://learn.sparkfun.com/tutorials/getting-started-with-the-myoware-20-muscle-sensor-ecosystem/arduino-example-3-transmitting-sensor-data-via-bluetooth-using-the-wireless-shield-esp32). It requires using a newer ESP32S3 or variant, so I tried that, but received the same error code “exit status 2”. PC. and Rasp Pi 5, both with 2 different cables both known good (and verified after) for other arduino stuff.

5

Alrighty - how are things wired up? Maybe share a photo of your setup

6

Nothing but the single usb-c port

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