LoPy on corporate WiFi and using Tx/Rx commands **SOLVED**
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@jmarcelino
Also, I made sure my echo is ON, on my PC. When I manually short DB9 connectors( Com1) pin2 & 3 without the breakout MAX3232 board, any character I send is echoed back on to my TeraTerm terminal. When I connect the same DB9 to my breakout board and short the Tx and Rx on the MAX3232 which is powered via the expansion with LoPy no loopback echo is observed. Lopy is just there to make the voltage out of the expansion 2.0 functional. -
@jmarcelino
Sorry for the confusion, when I meant with no Pycom unit I meant I was not using the Pycom modules for communication test with the MAX3232....the PC's COM port and Tera term is being used for initail MAX3232 communication test . The expansion 2.0 board has a Lopy plugged with no code, to make sure the expansion board spits out the Vout of 3.3VDC. Once I verify the MAX3232 communication functionality, I will add the LoPy to the communicate with third part UART communication -
@jmarcelino
[Solved ]
Resolved, used a different power supply unit and it worked. I guess even though I was getting enough juice of 3.3VDC out of the Expansion board with a LoPy current was not enough.
Thanks much!
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