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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)/ `( I3 ^3 G# W7 }9 z! \$ Y
- #include <ESP8266HTTPClient.h>
0 c& H4 ^8 d; V+ z w - #include <ESP8266WiFi.h>2 H7 r/ V) b- i- [
- #include <ESP8266WiFiMulti.h>
, {/ f) g: [9 g, Z' ] - #include <ESP8266WebServer.h>
. n+ P% U: b0 g$ |5 ^. d - #include <arduino.h>
5 G/ Q4 A( C, V1 s/ N' r V7 n - ESP8266WiFiMulti WiFiMulti;
. @4 T ?5 n) U( G* Z5 J - ESP8266WebServer server(80);; W( M+ g" v4 x4 K* k9 {$ Y
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
/ f1 E, s5 W# C% J) K: U1 [ - ADC_MODE(ADC_VCC);
3 M5 }' Z; ~) U& z! g - void setup() {. e0 d2 n, o* G' M2 P) D. U: L
- Serial.begin(115200);
" Q( q& V9 g4 w8 o: ^% l - Serial.print("\r\n\n");
9 G4 t' a. _4 p2 X9 d4 Y. o$ R - pinMode(2,OUTPUT);+ l3 I7 T9 \' }# H' u0 R9 }
- // WIFI
8 A% y7 \' {3 s5 f4 t* {& r0 u - WiFi.mode(WIFI_STA);8 W7 c) `0 s" F* \$ O) S" u' G
- WiFi.hostname("Sparkle");6 _& ]4 l9 N7 A) A# g
- WiFiMulti.addAP("wifi ssid", "wifi password");
. r2 n3 \9 w' n, Y* x& {. ]: f - int tryNum = 15;
1 W# B% E" f" ]! g4 _ - Serial.print("Connect WiFi");% s& a/ g( _) N+ j, t; L, v0 I
- while (WiFiMulti.run() != WL_CONNECTED) {, ?( s6 g& d/ Z( q2 R% \: @
- digitalWrite(2,0);7 j; w. {% N) e/ ?, {
- delay(200);* z) ~- f$ ^5 L/ X/ w ^
- digitalWrite(2,1);0 D* C: r4 ]( l
- delay(300);
2 B: Y- P6 _: d - Serial.print(".");
9 t+ ]4 e$ _/ `6 Y5 v2 A$ _ - tryNum--;
; H8 [: [# V; v - if (tryNum == 0) {3 U& C c0 W- h! [& d8 l
- // 1min' O7 ~) L) R, U* t( Z
- // ESP.deepSleep(60e6);
, {1 c& q0 m/ I - ESP.deepSleep(0);
/ |# i5 ^& F% {5 b - }' j3 G) h: o, ?8 I* F! l
- }2 J* _5 A. |( n% e9 `7 j: a
- Serial.print("\r\n");# r; j+ N/ n+ Z5 ^
- digitalWrite(2,1);
* r( _: c, P1 Z# ~6 j$ x& D5 f - Serial.print("IP address : ");( \6 U- K1 ]/ m' k" \( G/ }
- Serial.println(WiFi.localIP());
6 f0 l6 s8 I2 b# w/ M - server.on("/", HTTP_GET, [](){
6 G, F2 W, ^4 B3 k$ {' I8 p0 o - server.sendHeader("Connection", "close");: R' [1 c- R! ?* r9 s1 d
- server.send(200, "text/html", serverIndex);
, j% [# u. c$ A ~8 w8 F A - });" T2 Y8 u! E" X: \# \
- server.on("/update", HTTP_POST, [](){
& R1 e8 t' l* l; _ - server.sendHeader("Connection", "close");
4 Y8 E& s5 i; p) ~8 e - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");) D3 k% N# T" _ ~! a+ [2 D$ ]
- ESP.restart();
% ]' _. c; Z) D; @: n" |& J - },[](){
2 R9 J% a q" i6 Z, P3 f - HTTPUpload& upload = server.upload();
. T" i" k! o p: N: y1 ? - if(upload.status == UPLOAD_FILE_START){
. c! r5 q8 \8 w- I4 o- n7 f - Serial.setDebugOutput(true);
% Y) i) B. E* ]$ i( N/ H6 A& D0 k - Serial.printf("Update: %s\n", upload.filename.c_str());* |9 S$ D! u+ l; M. u
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;" P- j4 L% K0 J5 z( m9 x5 p
- if(!Update.begin(maxSketchSpace)){
* J+ z7 \! ~5 ^* x! B" m - Update.printError(Serial);. r/ i9 i1 L$ H" l" w( O
- }
/ i( H! j {" h/ j - } else if(upload.status == UPLOAD_FILE_WRITE){% k2 d. B0 E0 p7 M
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
( Q* X9 ] f- D% Q. f% t ? - Update.printError(Serial);) X7 j$ H( Y! t9 Z% M5 M
- }
! f/ S! R6 T9 I6 a - } else if(upload.status == UPLOAD_FILE_END){; ^! S6 Y' L% m: o# G
- if(Update.end(true)){
3 S/ e3 G% n$ ^& I; W* C6 G - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);9 z) S' C+ l+ A, T
- } else {4 p3 H3 `$ o- F% W, G" A
- Update.printError(Serial);
: i4 |! Y. }; ^: v( c Y - }' ]( ^0 \# ~! v& L
- Serial.setDebugOutput(false);
% K* T+ h$ a2 Y - }" A) f/ i! y1 H2 o1 D
- yield();
" `9 p5 d4 G8 a- h - });
& o" A$ R! h9 n9 S) [0 u! h. a - 7 X2 @' M# L* ~
- digitalWrite(2,0);
4 T+ t- L3 n2 D: t$ G; K - mainAction();: X0 f2 ?+ B5 E; F
- if (digitalRead(0)){
- h# r" a% I! M" G Q$ z( w - ESP.deepSleep(0);
/ g6 O+ u" b- {& c/ I1 J( V - } else {
4 r: z+ e, Q1 F - server.begin();
w* \% ?, H8 p' Z - }
) n% t d2 w% F7 ` - }3 ~4 N. ?: G; P- s7 x6 A8 o* s1 J% `
- void loop() {
& N/ B2 \# z9 u/ Q - server.handleClient();
- |; J5 [ j* Z* Q" W% K! A% Q - delay(1);
' p8 z9 ?# ?) O7 \. ?# c# h - }
/ F5 S# Q, z) U4 u' t - String doGet(String url){
% M5 f+ c- U" K - if ((WiFiMulti.run() == WL_CONNECTED)) {6 u* e) k2 y5 E* ?
- HTTPClient http;5 X ~# v2 f; X0 T. b
- Serial.println("[HTTP] begin...");9 Z1 g3 W( d% J: I. v6 { |3 J
- if (url.startsWith("https")) {
. X& w+ g: x$ o3 e - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
2 R1 I9 V) ^0 D& L) P: s - } else {6 _; K, `) b$ p; r
- http.begin(url);! J% J% x2 d$ A* p
- }
3 Q. w [ H" F$ _& M$ ~' L - Serial.println("[HTTP] GET...");
6 [# h) y7 d2 B# y+ ^4 Y$ f$ I3 \ - int httpCode = http.GET();
2 I0 h. F4 D8 d# w - if (httpCode > 0) {' \7 v6 N; i. b- r; |1 G' b
- Serial.printf("[HTTP] code: %d\n", httpCode);
( \& l" U# L. B - if (httpCode == HTTP_CODE_OK) {
* _4 A: J0 q5 y$ b - String payload = http.getString(); V# M1 H1 ~3 ~8 X$ W) J
- Serial.println(payload);
5 z6 H" Z9 Q) M- }( C* i+ ] - Serial.print("\r\n");$ u' ^5 V. J5 P9 j" _( q1 n
- return payload;
$ Y9 q! y+ ]. P - }
! f2 O1 \4 r; \. c; L) c - } else {
2 k4 T% _! s# D I0 b3 D. c% M - Serial.printf("[HTTP] GET... failed, error: %s\n",: c0 ^! u& j5 [# C; v. W- m; H% {
- http.errorToString(httpCode).c_str());
6 F1 @' X9 c/ T/ l" [7 h9 S8 W9 F2 L - }( z0 @/ g5 a2 s, J6 Y% y
- http.end();
A0 D- M E* V1 W% i5 E' o7 i - return "";
$ m$ [: C' ~ y( C s* r - }) v4 I! v. T3 ]9 \
- }
4 s% }5 r7 f4 _0 L5 U- D+ B4 L - void mainAction() {3 ^4 u" p* r# z( u- i3 g
- // 发送请求
; l+ r' }/ Q- B - doGet("http://google.cn");
+ C) x, o# x( ` - }
+ x V) T2 w& _) n
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