ESP8266 datasheet(104/117 Pages) ESPRESSIF

104 / 117 page

13. IR Remote Control User Guide

13.2. Parameters Conﬁguration

All kinds of parameters related to transmitting and receiving of infrared remote control

codes can be conﬁgured in

ir_tx_rx.h.

Conﬁg Parameters for Transmitting:

#define GEN_IR_CLK_FROM_IIS 0

// Config the mode of carrier

// 1: IIS clock signal generates carrier wave for transmission

// 0: generate carrier wave for transmission under GPIO sigma-delta

modeI

// Suggest using MTMS pin to implement infrared transmitting

function.

// Config the register function and

multiplexing function of infrared pins

#define IR_GPIO_OUT_MUX PERIPHS_IO_MUX_GPIO5_U

#define IR_GPIO_OUT_NUM 5

#define IR_GPIO_OUT_FUNC

FUNC_GPIO5

Conﬁg Parameters for Receiving:

// Config the buffer size via infrared receiving

#define RX_RCV_LEN

128

// Config the GPIO register function and

multiplexing function of infrared pins

#define IR_GPIO_IN_NUM

#define IR_GPIO_IN_MUX

PERIPHS_IO_MUX_MTMS_U

#define IR_GPIO_IN_FUNC FUNC_GPIO14

Other parameters:

#deﬁne USE_US_TIMER can be deﬁned in

user_config.h.

Modes of Transmitting Carrier Waveform:

Mode 1: IIS Clock Mode

MTMS pin, or GPIO14 is used to transmit carrier waveform under IIS clock mode. Please

refer to Figure 1 below.

#define GEN_IR_CLK_FROM_IIS

#define IR_GPIO_OUT_MUX

PERIPHS_IO_MUX_MTMS_U

#define IR_GPIO_OUT_NUM

Espressif

! /!

96 104

2017.05

ESP8266 Datasheet(PDF) 104 Page - ESPRESSIF SYSTEMS (SHANGHAI) CO., LTD.

ESP8266 Datasheet(HTML) 104 Page - ESPRESSIF SYSTEMS (SHANGHAI) CO., LTD.

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 ...More

Datasheet Download

Link URL