
GC-ESP32-PORT-N
Description:Features:
• Wi-Fi/BLE 4.2
• Ethernet RMii
• Serial
- UART for TTL, RS232,
RS422, RS485
- SPI, I2C, I2S
• Embedded ESP32-D2WQ main processor
chip
• 2 MB SPI ash embedded
• 540 KB SRAM
• 2 CPU cores that can be
controlled individually
• Adjustable clock frequency 80 MHz to 240
MHz
• FCC/IC certied
Grid Connect, Inc.
FCC ID: 2AFC3ESP32P001 Model: GC-ESP32-PORT-N
IC: 22503-ESP32P001
This device complies with Part 15 of the FCC Rules and
with Industry Canada license-exempt RSS standard(s).
Operation is subject to the following two conditions: (1) This
device may not cause harmful interference, and (2) This
device must accept any interference recieved, including
interference that may cause undesired operation.
Le présent appareil est conforme aux CNR d’industrie
Canada applicables aux appareils radio exempts de
licence. L’exploitation est autorisée aux deux conditions
suivantes: (1) l’appareil ne doit pas produire de brouillage,
et (2) l’utilisateur de l’appareil doit acceptar tout brouillage
radioélectrique subi, mȇme si le brouillage est suseptible
d’en compromette le fonctionnement.
Note: Changes or modications not expressively approved
by the party responsible for compliance could void the
user’s authority to operate the equipment.
The GC-ESP32-PORT is a family of embedded networking modules that allow the user to create a
customized modular solution for all of their networking requirements. The GC-ESP32-PORT
modules are all based on the powerful ESP32 processor. The ESP32 processor has all the
communication interfaces required to implement today’s wired and wireless standards; these include: Wi-Fi, BLE, Ethernet, UART (RS232, RS485), I2C, I2S, and SPI. Each module has different
communication hardware and software options that are available for use.
Communication Interfaces
• Wi-Fi
• BLE
• RMii
• SPI, I2S, I2C
• I/O
• UART (RS232, RS422, RS485)
Wi-Fi, BLE
Having a combination of BLE, and Wi-Fi on board makes the modules suitable for a
variety of wireless networks, allowing for both Wi-Fi based internet connections and local BLE
connections to a smart phone or tablet.
RMii
TBD
Processor
The ESP32 has two CPU cores that can be individually controlled and a clock frequency that is
adjustable from 80 MHz to 240 MHz. The ESP32 also has a sleep mode processor that allows for
sleep current of less than 5 µA, making it suitable for battery powered applications.
Software / Firmware
The GC-ESP-PORT component utilizes the free RTOS operating system (now owned by Amazon/
AWS) with LwIP and a built-in TLS 1.2 with hardware acceleration. It also offers secure, encrypted
over-the-air (OTA) updates so that the module rmware can be updated remotely without manual or
physical intervention. The AWS cloud extensions provide an application interface (API) for developers that want to implement cloud applications.
Grid Connect has made available for the GC-ESP32-PORT family different rmware and hardware
that allows the user to use for standard applications:
• Serial tunneling between the UART and Wi-Fi
• Serial tunneling between the UART and Ethernet
• Bridging between Wi-Fi and Ethernet
• Basic AWS cloud connection
• Custom rmware available
If you wish to develop your own software/rmware there is a standard SDK with many options for
your application. The development environment for ESP32 is available on-line and is open source
and free.
1630 W. Diehl Road, Naperville, IL 60563 Phone: +1 (630) 245-1445 USA Toll Free: +1 (800) 975-4743 gridconnect.com

Specications:
Security / Protection
Power Supply
Frequency Band
Interface(s)
Network
Protocols
Core Power
Dimensions
Certications
Software
Application Firmware
Antenna
WPA/WPA2/WPA2-Enterprise/WPS
AES/RSA/ECC/SHA
3.3 V / 500 mA
Wi-Fi frequency: 2.4 GHz ~ 2.5 GHz
RMii, UART, SPI, SDIO, I2C, LED PWM, Motor PWM, I2S, IR
GPIO, capacitive touch sensor, ADC, DAC, LNA pre-amp
IPv4, IPv6, SSL, TCP/UDP/HTTP/FTP/MQTT
Wi-Fi:
• A-MPDU and A-MSDU aggregation and 0.4 µs guard interval support
• 802.11 b/g/n/e/i (802.11n up to 150 Mbps)
BLE:
• BLE 4.2
ESP32-D2WQ contains two low-power Xtensa® 32-bit LX6 microprocessors
0.55 x 0.65x 0.25 inches
FCC/IC, CE
Software Development: Supports Cloud Server Development/SDK for custom rmware development
UART Download/ OTA (via network)/ download and write rmware via host. (Application rmware will
not affect radio parameters.)
External U.FL/IPEX RF Connector
Temperature Range
Operating: -40 ºC to 85ºC (-40ºF to 185ºF)
Ordering Summary
GC-ESP32-PORT-N (Networking Daughter Processor Board)
Contact Us:
Grid Connect Inc.
1630 W. Diehl Road
Naperville, IL 60563
Phone: +1 (630) 245-1445
USA Toll Free: +1 (800) 975-4743
Fax: +1 (630) 245-1717
Email: sales@gridconnect.com
Website: gridconnect.com

Radiation Exposure Statement:
This equipment complies with IC radiation exposure limits set forth for an uncontrolled
environment. This equipment should be installed and operated with minimum distance 20cm
between the radiator and your body.
Déclarationd'exposition aux radiations:
Cetéquipementestconforme aux limitesd'exposition aux rayonnements IC établies pour un
environnement non contrôlé. Cetéquipementdoitêtreinstallé et utilisé avec un minimum de
20cm de distance entre la source de rayonnement et votre corps
OEM Integration Instructions:
This device is intended only for OEM integrator under the following conditions. The module
can be used as certified in a host product if:
1. The antenna is installed such that 20 cm is maintained between the antenna and any end
user.
2. The transmitter module and antenna are not co-located with any other transmit or antenna.
3. The module is only used with the antenna(s) originally tested and certified with this module.
As long as 3 conditions above are met, further transmitter testing will not be required.
However, the OEM integrator is still responsible for testing their end-product for any additional
compliance requirement with this module installed (for example, digital device emissions, PC
peripheral requirements, etc.).
The final end product must be labeled in a visible area with the following:
Contains FCC ID: 2AFC3ESP32P001, IC: 22503-ESP32P001
The GC-ESP32-PORT-N may only be used with the following antennas:
Antenna Type Manufacturer Frequency Range
(MHz)
Whip V.TORCH VTWFA-3 2400-2480 3dBi
Trace Airgain N2420 2400-2480 3.8dBi
any 50 Ohm antenna of the same type and frequency range, with equal or lesser gain.
IMPORTANT NOTE:
In the event that the above conditions cannot be met (for example certain device configuration
or co-location with another transmitter), then the FCC / ISED authorization for this module in
combination with the host equipment is no longer considered valid and the FCC ID / IC
number of the module cannot be used on the final product. In these and circumstance, the
OEM integrator will be responsible for re-evaluating. The end product (including the
transmitter) and obtaining a separate FCC authorization.
Maximum Peak
Antenna Gain (dBi)