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22.8.2018 Pmod ESP32 Reference Manual [Reference.Digilentinc]

https://reference.digilentinc.com/reference/pmod/pmodesp32/reference-manual 7/8

The UART Controller RX line connected to pin 3

A shared GND () connection between the Pmod and your UART controller

3.3v Power connected to the Pmod

1. Make the hardware connections described above

2. Apply power to the Pmod ESP32

3. Note the port that the Pmod is connected to

1. For Linux, this will be /dev/ttyUSB* or /dev/ttyS*

2. For MacOS, this will be /dev/tty.usbserial-***

3. For Windows, this will be COM*

4. If you are using an FPGA as your UART controller, disregard this step, but if there is more than one UART controller in

your design, note which UART controller is connected to the Pmod ESP32

4. Set the serial terminal (Putty, Minicom, CoolTerm) to use 115200 baud with 8 data bits, 1 stop bit, no parity

5. Send the characters “AT” followed by the <CR> and <NL> characters. You may be able to set your serial terminal software to

automatically add the <CR> and <NL> characters on the end of any transmission

6. In your terminal, you should see the Pmod echo back your “AT” command to you and also respond with “OK”

7. You are now set to send AT commands to your Pmod ESP32. Try to connect it to your local wireless network by sending the

command AT+CWJAP=“your network name”,”your network password“

The schematics of the Pmod ESP32 are available here

(https://reference.digilentinc.com/_media/reference/pmod/pmodesp32/schematic/pmodesp32_sch.pdf).

Links to a couple of example projects featuring the Pmod ESP32 can be found on its Resource Center here

(https://reference.digilentinc.com/reference/pmod/pmodesp32/start#example_projects).

If you have any questions or comments about the Pmod ESP32, feel free to post them under the appropriate section (“Add-on Boards”)

of the Digilent Forum (https://forum.digilentinc.com/).

pmodesp32 (https://reference.digilentinc.com/tag/pmodesp32?do=showtag&tag=pmodesp32), rm (https://reference.digilentinc.com/tag/rm?

do=showtag&tag=rm), doc (https://reference.digilentinc.com/tag/doc?do=showtag&tag=doc)

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