Data Sheet
Table Of Contents
- 1.General Overview
- 1.1.Introduction
- 1.2.Features
- 1.3.Parameters
- 1.4.Ultra Low Power Technology
- 1.5.Major Applications
- 2.Hardware Overview
- 3.Pins and Definitions
- 3.1.GPIO
- 3.2.Secure Digital Input/Output Interface (SDIO)
- 3.3.Serial Peripheral Interface (SPI/HSPI)
- 3.4.Inter-integrated Circuit Interface (I2C)
- 3.5.I2S
- 3.6.Universal Asynchronous Receiver Transmitter (UART)
- 3.7.Pulse-Width Modulation (PWM)
- 3.8.IR Remote Control
- 3.9.ADC (Analog-to-digital Converter)
- 3.10.LED Light and Button
- 4.Firmware & Software Development Kit
- 5.Power Management
- 6.Clock Management
- 8.FCC Warming Statement
- This device complies with part 15 of the FCC Rules
- (1)This device may not cause harmful interference,
- (2)and this device must accept any interference re
- FCC Radiation Exposure Statement:
- This equipment complies with FCC radiation exposur
- Information to the user.
- Note: This equipment has been tested and found to
- -Reorient or relocate the receiving antenna.
- -Increase the separation between the equipment and
- -Connect the equipment into an outlet on a circuit
- -Consult the dealer or an experienced radio/TV tec
- 9.Appendix: QFN32 Package Size
ESP8266 Datasheet
Espressif Systems
Espressif Systems
June1,2015
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3.2.
Secure Digital Input/Output Interface (SDIO)
....................................................
18
3.3.
SerialPeripheralInterface(SPI/HSPI)
..................................................................
18
3.3.1. General SPI (Master/Slave).................................................................................... 18
3.3.2.
SDIO
/
SPI (Slave)
....................................................................................................
19
3.3.3. HSPI (Master/Slave)
.................................................................................................
19
3.4.
Inter-integrated Circuit Interface (I2C)
.................................................................
19
3.5. I2S................................................................................................................................20
3.6. Universal Asynchronous Receiver Transmitter (UART)
......................................
20
3.7.
Pulse-Width Modulation (PWM)
............................................................................
21
3.8. IR Remote Control.................................................................................................... 22
3.9.
ADC (Analog-to-digital Converter)
.......................................................................
22
3.10.
LED Light and Button
...............................................................................................
24
4.
Firmware & Software Development Kit.............................................................26
4.1.
Features
......................................................................................................................
26
5.
Power Management.............................................................................................27
6.
Clock Management.............................................................................................. 28
6.1.
High Frequency Clock
.............................................................................................
28
6.2.
External Reference Requirements
........................................................................
29
7.
Radio...................................................................................................................... 29
7.1.
Channel Frequencies
..............................................................................................
30
7.2. 2.4 GHz Receiver...................................................................................................... 30
7.3.
2.4 GHz Transmitter
.................................................................................................
30