Posted 8/4/2024 13:03 (#10838776 - in reply to #10838692) Subject: RE: CFX-750 + Bluetooth dongle
Avoca, MN
Your HC-05 module has TTL UART voltages (0 to 3 volts). The CFX-750 is looking for RS232 voltages (-12 to 12 volts). You will need a TTL to RS232 adapter to make it work or look for a bluetooth to RS232 dongle.