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Does this SPEAKER value sound right here? We are having issues getting proper temp readings from the CPX. Is this something tested?

Currently a MakeCode program running on a CPX advertises as a USB composite device with HID and WebUSB support. The USB VID:PID used is 0x03EB:0x2402, which is the Atmel VID and a sample PID. (See

We're documenting support of WebUSB for CPX, and we also need to support it on Windows 7. Unlike Windows 10, Windows 7 needs user-installed drivers, and we need to put the VID:PID in the .inf driver file.

We'd like to change the VID:PID to an Adafruit number. Our VID is 0x239A. We have several defined PID's already for the CPX: 0x0018 is for the UF2 bootloader, 0x8018 is a CDC PID for use with Arduino, and 0x8019 is used by CircuitPython. We could reuse the UF2 or Arduino one for MakeCode, or we'd be happy to assign a new one. Do you have a preference or a long-term plan for uses these ID's?

We can submit a PR once we decide on the PID. Thanks!

Tagging @ladyada who's involved in this as well.

This is a follow up of microsoft/pxt-adafruit#604
Test sample:

#include "CircuitPlayground.h"
CircuitPlayground cplay;
int main()
{
    while(1)
    {
        cplay.io.a4.setAnalogValue(0);
        cplay.sleep(200);
        cplay.io.a4.setAnalogValue(512);
        cplay.sleep(200);
    }
}

Result:

• A1, A2, A3: ok
• A0, A4, ... : freeze