ESP-EYE
User manual
www.espressif.com
Version 0.1
Espressif Systems
Copyright © 2019
This document describes the specification of the ESP-EYE development board.
Release Notes
About This Guide
Date V
2019.01 V0.1 For certification purpose.
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ersion Release notes
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CONFIDENTIAL
!
1. Overview
ESP-EYE is an ESP32-based development boar
MB PSRAM and 4 MB flash, as well as provides an external 2-million-pixel camera, which
makes the board very suitable for applications in the fields of face detection, face
recognition, and speech recognition. Besides, the board can also support image
transmission over Wi-Fi and debugging using the Micro USB port, which enables the users'
development of advanced AI solutions.!
d that integrates a digital microphone, 8
Espressif
2019.01
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2.
Circuit Components
Espressif
!
Figure 3-1. ESP-EYE Circuit components
The list and figure below describe the key components, interfaces, and controls of the ESPEYE development board:
3D_PIFA Antenna
A 3D PIFA antenna is used for this module, The antenna gain is 2.98dBi.
ESP32 Chip
A 2.4 GHz Wi-Fi and Bluetooth combo chip
Crystal Oscillator
Provides an external clock for ESP32.
2019.01
CONFIDENTIAL
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Flash & PSRAM
Pr
ovides memory to store applications.
CP2102 USB-to-UART Chip
Converts the USB signals to UART signals.
USB Port
Provides the power supply to the whole system.
LDO Power Supply
Provides the required power supplies to the ESP32 chip, camera and LED indicators.
Side Tactile Button
A function key
Top Tactile Button
Reset/Boot button. We recommend that you do not configure this button for other uses.
LED Indicators
The board has a red indicator and a white indicator. Different combinations of red and
white indicators reflect the different status of the board, such as waking up, networking,
face detection, face recognition, face enrollment, and face recognition...
Camera
An external 2-million-pixel camera module for face detection, face recognition and Face
ID enrollment
Camera Connector
Used to connect the external camera.
MIC
A digital microphone for voice control functions
SPI Port
A reserved port for data transmission!
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2019.01
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3.
3.1.
3.1 Limit Parameters
Parameter Symbol Min Typ Max Unit
Table 1. ESP-EYE Limit Parameters
Power supply
voltage
Power supply
current
Low-level input
voltage
High-level input
voltage
Input leak current I
Pin capacitance C
Low-level output
voltage
High-level output
voltage
Maximum IO
output current
Storage
temperature
VDD 4.75 5.0 5.25 V
I
VDD
V
IL
V
IH
IL - - 50 nA
PAD - - 2 pF
V
OL
V
OH
I
MAX - - 40 mA
T
STR
0.5 - - A
-0.3 - 0.25xV
IO
0.75xV
- - 0.1xV
IO
0.8xV
-40 - 85 ℃
- VIO+0.3 V
- - V
IO
IO
V
V
3.2.
Espressif
Operating
temperatur
e
OPR
T
RF Performance
Description Min Typ Max Unit
Frequency range 2412 -
RF output power
0 - 50 ℃
Table 2. ESP-EYE RF Performance
2462
TX power
MHz
802.11b:25.83dBm,802.11g:24.78dBm,802.11n20:24.86dBm,
802.11n40:23.84dBm
Sensitivity
2019.01
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Description Min Typ Max Unit
DSSS, 1 Mbps - -97 - dBM
CCK, 11 Mbps - -87 - dBM
6 Mbps (1/2 BPSK) - -92 - dBM
54 Mbps (3/4 64-QAM) - -74 - dBM
HT20, MCS0 - -91 - dBM
HT20, MCS7 - -71 - dBM
HT40, MCS0 - -89 - dBM
HT40, MCS7 - -69 - dBM
Espressif
Adjacent channel r
OFDM, 6 Mbps - 31 - dB
OFDM, 54 Mbps - 14 - dB
HT20, MCS0 - 31 - dB
HT20, MCS7 - 13 - dB
3. ESP-EYE BT Performance
Table
Description
Frequency range
RF output power
Min Typ
02 -
24
TX power
BLE:2.17dBm,BT:5.82dBm
ejection
Max Unit
24
80
MHz
Receiver Characteristics
Parameter Conditions Min Typ Max Unit
Sensitivity @30.8% PER - - –97 - dBm
Maximum received signal @30.8% PER - 0 - - dBm
Co-channel C/I - - +10 - dB
F = F0 + 1 MHz - 5– - dB
F = F0 – 1 MHz - 5– - dB
Adjacent channel selectivity C/I
F = F0 + 2 MHz - –25 - dB
F = F0 – 2 MHz - –35 - dB
F = F0 + 3 MHz - –25 - dB
F = F0 – 3 MHz - 45– - dB
30 MHz ~ 2000 MHz –10 - - dBm
Out-of-band blocking performance
2000 MHz ~ 2400 MHz –27 - - dBm
2500 MHz ~ 3000 MHz –27 - - dBm
3000 MHz ~ 12.5 GHz –10 - - dBm
Intermodulation - –36 - - dBm
2019.01
Transmitter Characteristics
Parameter Conditions Min Typ Max Unit
F = F0 ± 2 MHz
Adjacent channel transmit power
F = F0 ± 3 MHz
F = F0 ± > 3 MHz
∆f1
avg
∆f2
max
∆f2
avg
ICFT
Drift rate
/
∆f1
avg
- - -
-
- -
- -
- -
Drift - -
-
-
-
247
–52
58–
60–
- -
0.92–
–10
0.7
2
-
-
-
265
- -
-
-
-
dBm
dBm
dBm
kHz
kHz
kHz
kHz/50µs
kHz
CONFIDENTIAL
!
4. Dimensions
! !
Espressif
2019.01
FCC Statement
Any Changes or modifications not expressly approved by the party responsible for compliance could void
the user’s authority to operate the equipment.
This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions:
(1) This device may not cause harmful interference, and(1)
(2) This device must accept any interference received, including interference that may cause undesired
operation.
FCC Radiation Exposure Statement:
This equipment complies with FCC radiation exposure limits set forth for an uncontrolled
environment .This equipment should be installed and operated with minimum distance 20cm between the
radiator& your body.
FCC Label Instructions:
The outside of final products that contains this module device must display a label referring to the enclosed
module. This exterior label can use wording such as: “Contains Transmitter Module
FCC ID: 2AC7Z-ESPEYE”,or “Contains
FCC ID:2AC7Z-ESPEYE”, Any similar wording that expresses the same meaning may be used.
Espressif IoT T
eam"
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Disclaimer and Copyright Notice
efer
Information in this document, including URL r
notice.
THIS DOCUMENT IS PROVIDED AS IS WITH NO WARRANTIES WHATSOEVER,
INCLUDING ANY WARRANTY OF MERCHANTABILITY, NON-INFRINGEMENT, FITNESS
FOR ANY PARTICULAR PURPOSE, OR ANY WARRANTY OTHERWISE ARISING OUT
OF ANY PROPOSAL, SPECIFICATION OR SAMPLE.
All liability, including liability for infringement of any proprietary rights, relating to use of
information in this document is disclaimed. No licenses express or implied, by estoppel or
otherwise, to any intellectual property rights are granted herein.
The Wi-Fi Alliance Member logo is a trademark of the Wi-Fi Alliance. The Bluetooth logo is
a registered trademark of Bluetooth SIG.
All trade names, trademarks and registered trademarks mentioned in this document are
property of their respective owners, and are hereby acknowledged.
Copyright © 2019 Espressif Inc. All rights reserved.
ences, is subject to change without
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