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接上电池,用一个按钮把rst和gnd接上,按一下按钮就会自动开机发送请求,然后进入深度睡眠,可用于低功耗的物联网开关触发器(如需使用自动唤醒,还要将gpio16接到rst)2 }/ q _# ], i. c o; \1 G
- #include <ESP8266HTTPClient.h>
* g" D) `+ H2 q2 ^ - #include <ESP8266WiFi.h>
/ W2 D/ `0 b+ ~- V7 M6 \ - #include <ESP8266WiFiMulti.h>2 W a' ^, |" F
- #include <ESP8266WebServer.h>
8 L; B: k# x% m! f - #include <arduino.h>- p. W# E' P. f8 U6 Y G: d: I
- ESP8266WiFiMulti WiFiMulti;/ b. t6 n" q. q; t) s; Z& Z: {6 z9 C
- ESP8266WebServer server(80);2 V5 [' v# `' S, S5 r `4 z' S
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";; f2 u" K+ x7 m- f/ ] N( `: I
- ADC_MODE(ADC_VCC);
; p7 [0 D- f' Y: @. @ - void setup() {
. [. O) e3 ]) h$ g d8 ^0 ~ - Serial.begin(115200);
/ A* P3 p; j9 _1 U. q- K - Serial.print("\r\n\n");) t8 i# G8 J$ m5 B7 G: g
- pinMode(2,OUTPUT);6 k" F8 m* W# |& }# }
- // WIFI! |# ?1 J! I. K5 ^/ f3 o- q
- WiFi.mode(WIFI_STA);
( O/ Q' ], H( u0 A - WiFi.hostname("Sparkle");2 x! C# Y* C( \! m$ R1 u+ c
- WiFiMulti.addAP("wifi ssid", "wifi password");% Y, e9 c/ r8 ]+ W3 @
- int tryNum = 15;9 K! T Z5 i+ v3 G1 w% K/ r
- Serial.print("Connect WiFi");
S) b2 i) i( x3 w; K E: [! X - while (WiFiMulti.run() != WL_CONNECTED) {1 z E7 o; P4 [& k# C# J% g
- digitalWrite(2,0);2 a L9 d0 K5 L; N# o
- delay(200);) b9 M4 p$ S/ a8 H0 }
- digitalWrite(2,1);
* l- D: B/ ~1 h9 w: N* Z - delay(300);' m/ m- x ?5 K3 Y" N9 t" ^6 k
- Serial.print(".");
* y7 F4 W( ^% C - tryNum--;5 r1 @; k4 \4 j/ f# H6 ?) \
- if (tryNum == 0) {
2 g$ R' m0 @# ?) n5 S4 A7 S - // 1min
; ]8 r T+ s1 s% H - // ESP.deepSleep(60e6);
4 I6 T; K7 r k- ? ? - ESP.deepSleep(0);
6 o. f" x% w$ [* c - }: y- w$ b% d+ x6 t0 R! {
- }! x$ d1 Z) H+ E( @- l
- Serial.print("\r\n");
; Z5 j y- z3 @ - digitalWrite(2,1);
( _% N! v" q/ `* M3 f - Serial.print("IP address : ");9 y$ j! H6 v8 _- p2 @
- Serial.println(WiFi.localIP());
3 D) |9 I) }" E - server.on("/", HTTP_GET, [](){
& Z5 w1 y \( p4 N3 \% N - server.sendHeader("Connection", "close");/ j5 }0 u/ z% y5 [
- server.send(200, "text/html", serverIndex);+ o0 ]7 D- t$ m1 c$ V" i! [4 L' j
- });' z6 s. V7 {; I% a- p {
- server.on("/update", HTTP_POST, [](){
0 b" z( F5 S* R/ J# @ - server.sendHeader("Connection", "close");2 l+ h# s8 U! P1 K
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
- m8 x4 {6 Z9 K9 l: S @ - ESP.restart();
* ?- j7 }; ]' h# E# W" W, b5 [ - },[](){ O! Z2 T4 @3 x- B
- HTTPUpload& upload = server.upload();! n& W& g% \& g' p
- if(upload.status == UPLOAD_FILE_START){) `$ |0 F7 _9 j- u$ t3 @5 O6 i
- Serial.setDebugOutput(true); o+ m" x0 J# v0 L5 \0 |
- Serial.printf("Update: %s\n", upload.filename.c_str());- Y. b! @/ b2 o1 A/ l+ `9 W
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
- v. a0 K, S m f4 u - if(!Update.begin(maxSketchSpace)){
" K2 O) c8 c8 r& I1 Y9 n+ ?- j: e. f - Update.printError(Serial);. Y, j. d% ?5 T4 V* b
- }
* F0 U/ B& g5 e$ z. I; u8 F/ Y - } else if(upload.status == UPLOAD_FILE_WRITE){
/ n5 `9 x7 F( ]. L! u4 \: z; z& Y) x - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
9 U; m2 [1 G: N5 S - Update.printError(Serial);
/ J! J7 ~9 Q! h3 v; C - }8 ^; h7 F N4 Q2 s. T/ e4 c# p- U
- } else if(upload.status == UPLOAD_FILE_END){: I6 j' e' r% ~) r5 T" x8 l# z
- if(Update.end(true)){% q& ]) B W& N; E
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize); j/ r u, N& H9 n/ j
- } else {! L& P. l+ p8 `8 \7 j o
- Update.printError(Serial);
# M% @" X# L# V/ K! Y - }: p/ V) [; Q+ |+ n4 }% @
- Serial.setDebugOutput(false);
2 m$ Q+ h/ M. E* v; v4 ~3 X - }, N2 d: t5 G1 `( }/ n, ~
- yield();
. q g$ I% M4 Q Q7 c: R - });
- y( g5 }# |: ~) i! n" k0 g6 T+ v# B - ! u& _/ W6 f) M) G' | W
- digitalWrite(2,0);) M' B) w- f4 N( ?) y9 P3 L
- mainAction();
% E4 S- r" z# P, e$ c: ?# O - if (digitalRead(0)){
! T/ \, z5 V7 \! F$ I" ` M - ESP.deepSleep(0);
! R) X5 @# {( c( z5 U' x- O: X* z) S - } else {! _8 R F+ M8 L3 I( }( E. V% U
- server.begin();
# ^0 D9 u& B! f& q7 ?8 X - }; y e1 ` b7 F4 J% `3 S
- }
; X2 J4 D4 R r/ `% b- x' m, m) _ - void loop() {
1 p( ]! e& O% ~/ W - server.handleClient();& {- z0 q+ G2 C
- delay(1);" `; U" y/ B$ ]9 d5 v
- }( N, e% x4 ?7 [+ p0 X1 _2 j$ V* U
- String doGet(String url){0 }8 {: D4 G+ B* f- c0 n2 e
- if ((WiFiMulti.run() == WL_CONNECTED)) {2 I$ L/ I1 |- T& Y3 F
- HTTPClient http;" _% E/ u+ h- O0 W% z
- Serial.println("[HTTP] begin...");/ f( y% X# e+ n2 u3 B6 E! S2 E2 w$ H
- if (url.startsWith("https")) {0 I' O7 N) R [
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
( p& R- f# |8 ^3 J8 |& B# K3 ^ - } else {
$ \# n( K# v: I* u - http.begin(url);! t2 i* X, {( j/ ^% v$ h l1 j6 `' W
- }
. m# A6 i3 ~! H1 @% a - Serial.println("[HTTP] GET...");5 \1 @# o& S# \* n( X/ h- u
- int httpCode = http.GET();' h# U, \" Z- Z" B" J* j0 h
- if (httpCode > 0) {
6 r7 ?2 T; r9 g8 l1 L& Y - Serial.printf("[HTTP] code: %d\n", httpCode);4 _$ h! l( |1 c+ F, M) \, I7 f z
- if (httpCode == HTTP_CODE_OK) {
& X& B. m' s# f* O7 ] - String payload = http.getString();
* i, E2 q3 U- B. ]# e" i b/ Y4 u - Serial.println(payload);
- L8 @8 ^2 o4 U# C) _4 j$ R - Serial.print("\r\n");
, S* B: {2 V; |, Y$ Q - return payload;
) w; {* \/ q9 m' P+ }0 |! j - }% X* w# o V7 t/ j5 f4 @
- } else {+ l: `' d2 A$ S2 G# ?0 t" p
- Serial.printf("[HTTP] GET... failed, error: %s\n",
$ L$ ?% O M+ D! u! [9 C) \ - http.errorToString(httpCode).c_str());/ B5 ^$ {, |4 N( U" N
- }0 B* M1 ]/ P& O6 Y
- http.end();4 E9 r, ^: A5 u+ o: D
- return "";- ]3 R; E! k3 Z8 O( G% s
- }5 ^8 h$ E9 {( N) D3 t
- }) ]1 Y* E9 i' I* c& k5 m
- void mainAction() {
1 d" S. _/ u: {2 i" z! C. S% P - // 发送请求
X9 u1 m+ @3 N; G! M% j - doGet("http://google.cn");
* m" o. K4 a) Y0 f/ |% U% z - }
N9 H$ N* \8 G1 U
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