Hi,
In testing the One+ I have found that the data coming across the UART for the GPS appears garbled, even when using very simple code. If I attach the GPS device to a standard PC (using a USB->Serial cable, at 3.3v), the NMEA data is as it should be and the checksums validate. I have even dropped ...
Search found 2 matches
- Mon Aug 07, 2017 7:13 pm
- Forum: Freematics Products
- Topic: Stability issues with the UART/GPS
- Replies: 1
- Views: 5433
- Mon Aug 07, 2017 7:02 pm
- Forum: Freematics Products
- Topic: Power from the car feeding back over USB
- Replies: 1
- Views: 5080
Power from the car feeding back over USB
Hi,
In using the One+ while connected to a car (or regulated PSU) I have found that power is actually coming back across the USB serial connection into the host computer (see attached screenshot). While the voltage is low, I am concerned there is a risk of damaging the connected PC when debugging ...
In using the One+ while connected to a car (or regulated PSU) I have found that power is actually coming back across the USB serial connection into the host computer (see attached screenshot). While the voltage is low, I am concerned there is a risk of damaging the connected PC when debugging ...