ESP-EYE User manual Version 0.1 Espressif Systems Copyright © 2019 www.espressif.
About This Guide This document describes the specification of the ESP-EYE development board. Release Notes Date Version Release notes 2019.01 V0.1 For certification purpose. Documentation Change Notification Espressif provides email notifications to keep customers updated on changes to technical documentation. Please subscribe at https://www.espressif.com/en/subscribe. Certification Download certificates for Espressif products from https://www.espressif.com/en/ certificates.
! 1. Overview C O N FI DE N TI AL ESP-EYE is an ESP32-based development board that integrates a digital microphone, 8 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.
! 2. Circuit Components ! 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. Espressif 2019.
! Flash & PSRAM Provides memory to store applications. CP2102 USB-to-UART Chip USB Port Provides the power supply to the whole system. LDO Power Supply AL Converts the USB signals to UART signals. TI Provides the required power supplies to the ESP32 chip, camera and LED indicators. Side Tactile Button A function key N Top Tactile Button Reset/Boot button. We recommend that you do not configure this button for other uses.
! 3. 3.1. Limit Parameters 3.1 Table 1. ESP-EYE Limit Parameters Parameter Symbol Min Typ Max Unit Power supply voltage VDD 4.75 5.0 5.25 V Power supply current IVDD 0.5 - - A Low-level input voltage VIL -0.3 - 0.25xVIO V High-level input voltage VIH 0.75xVIO - VIO+0.3 V Input leak current IIL - - 50 nA Pin capacitance CPAD - - 2 pF Low-level output voltage VOL - - 0.1xVIO V High-level output voltage VOH 0.
! 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 Adjacent channel rejection OFDM, 6 Mbps - 31 - dB OFDM, 54 Mbps - 14 - dB HT20, MCS0 - 31 - dB HT20, MCS7 - 13 - dB Table 3.
Transmitter Characteristics Parameter Conditions Min Typ Max Unit F = F0 ± 2 MHz - –52 - dBm F = F0 ± 3 MHz - –58 - dBm F = F0 ± > 3 MHz - –60 - dBm ∆ f1avg - - - 265 kHz ∆ f2 max - 247 - - kHz - –0.92 - - - –10 - kHz - kHz/50 µs - kHz Adjacent channel transmit power ∆ f2avg /∆ f1avg ICFT - Drift rate - - 0.
! Dimensions C O N FI DE N TI AL 4. ! Espressif 2019.
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 (2) This device must accept any interference received, including interference that may cause undesired operation.
