Search found 3 matches

by acsehi
Thu Aug 24, 2017 5:02 pm
Forum: General Discussion
Topic: HCTEST0006 3.3V UART
Replies: 5
Views: 27064

Re: HCTEST0006 3.3V UART

You are right, when I disconnected the TX from the device, the analyser started to pick up the signal. analyser -- USB -- COMPUTER -- USB -- Arduino -- 5V - 12V converter -- Device. I am not 100% sure that the ground on the device and the ground on the Arduino is galvanically connected, because of t...
by acsehi
Wed Aug 23, 2017 5:16 pm
Forum: General Discussion
Topic: HCTEST0006 3.3V UART
Replies: 5
Views: 27064

Re: HCTEST0006 3.3V UART

Hi Andrew, Thank you for your answer. The Arduino board can receive data on the RX pin no matter if the analyzer was connected or not. Edit: I have done some experiment, and when I disconnected the RX from the Arduino (but left the TX connected that I could send the command) I saw the answer to the ...
by acsehi
Tue Aug 22, 2017 7:22 pm
Forum: General Discussion
Topic: HCTEST0006 3.3V UART
Replies: 5
Views: 27064

HCTEST0006 3.3V UART

Dear HobbyComponents, I've just bought the above mentioned logic analyser from the Amazon, and I tried to check an UART communication. On one end there is an Arduino and I see the bytes sent clearly, but I can't see anything on the RX side. The device on the other side is tolerates 5V on the UART, b...