Problem TEL0070 Multi USB/RS232/RS485/TTL Converter
juansezoh 2020-06-01 05:10:49 1823 Views6 Replies Hi,
I have 13 TEL0070 cards, I am converting from port 485 to ATTL. I power the ATTL pin with 3.3V, it works fine in principle, but after a few readings the A-> B LED stays on permanently and no longer works. If I put the 5V A232 pin for a moment it works again. I have version 3, the schematic is not available on the wiki. What can I prove ?. Can you share the correct schematic? All cards have the same problem.
I have 13 TEL0070 cards, I am converting from port 485 to ATTL. I power the ATTL pin with 3.3V, it works fine in principle, but after a few readings the A-> B LED stays on permanently and no longer works. If I put the 5V A232 pin for a moment it works again. I have version 3, the schematic is not available on the wiki. What can I prove ?. Can you share the correct schematic? All cards have the same problem.
2020-06-04 00:43:59 This is the schematic in v1, in v3 the FT232RL is the CH340?. Is a error?. I am attentive. juansezoh
juansezoh 2020-06-02 10:46:47 Hi, the SKU is TEL0070, https://www.dfrobot.com/product-1029.html, i am attentive. Thanks. juansezoh
juansezoh 