Search found 5 matches

by glennpierce
Thu Dec 07, 2017 10:31 pm
Forum: WeMos
Topic: WeMos D1 Mini Motor Drive Shield (HCWEMO0010)
Replies: 18
Views: 9876

Re: WeMos D1 Mini Motor Drive Shield (HCWEMO0010)

Yes I expect the firmware is different because until I reflashed the i2c scanner could not find any devices.
Thanks for the help.
by glennpierce
Thu Dec 07, 2017 12:54 pm
Forum: WeMos
Topic: WeMos D1 Mini Motor Drive Shield (HCWEMO0010)
Replies: 18
Views: 9876

Re: WeMos D1 Mini Motor Drive Shield (HCWEMO0010)

Ok I got it going.

First I had to rewrite the firmware as described here.
https://hackaday.io/project/18439-motor ... rogramming

I also had to desolder the standby pad on the back of the shield so it can be controlled with i2c.
by glennpierce
Thu Dec 07, 2017 12:54 pm
Forum: WeMos
Topic: WeMos D1 Mini Motor Drive Shield (HCWEMO0010)
Replies: 18
Views: 9876

Re: WeMos D1 Mini Motor Drive Shield (HCWEMO0010)

Ok I got it going.

First I had to rewrite the firmware as described here.
https://hackaday.io/project/18439-motor ... rogramming

I also had to desolder the standby pad on the back of the shield so it can be controlled with i2c.
by glennpierce
Wed Dec 06, 2017 5:46 pm
Forum: WeMos
Topic: WeMos D1 Mini Motor Drive Shield (HCWEMO0010)
Replies: 18
Views: 9876

Re: WeMos D1 Mini Motor Drive Shield (HCWEMO0010)

Yep I used the sketch at the top off the thread. I do see i2c traffic on pins d1 , d2 with the scope. I don't think there is any connection issue as I have been over the joints a few times and connected a second different shield to another wemos with the same results. To be honest the boards may wel...
by glennpierce
Tue Dec 05, 2017 10:57 pm
Forum: WeMos
Topic: WeMos D1 Mini Motor Drive Shield (HCWEMO0010)
Replies: 18
Views: 9876

Re: WeMos D1 Mini Motor Drive Shield (HCWEMO0010)

Was this issue ever solved. I have exactly the same issue. No moving motors. A small dc voltage of the motor pins. The motor works. The serial console shows messages moving the motors. I2c scanner finds no devices. Wemos D1 mini I am using a geared dc motor from ebay. Works when applying voltage dir...