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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)/ o- L$ g" M5 v
- #include <ESP8266HTTPClient.h>+ U* h6 E6 k5 `" S; e
- #include <ESP8266WiFi.h>/ D+ ^ k2 c9 O. v9 ^& i
- #include <ESP8266WiFiMulti.h>- T. |$ J! P1 _) ^, `
- #include <ESP8266WebServer.h>
" [5 {1 [: f+ y - #include <arduino.h>
$ Z0 b- C; W2 H2 N - ESP8266WiFiMulti WiFiMulti; m: A" e) }2 c1 v6 N$ M
- ESP8266WebServer server(80);7 N& K E1 Z. a4 q* y
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";- [9 a3 h8 m$ u: E) X: F h
- ADC_MODE(ADC_VCC);+ C, O/ E) j; Z6 [1 @: \
- void setup() {% \7 ? E- }. a3 K: }1 y* a6 l; J& E
- Serial.begin(115200);
" B: v7 {; v1 t" C - Serial.print("\r\n\n");, P: O1 i" a+ t9 n. U
- pinMode(2,OUTPUT);3 z$ P0 M! J4 H8 b6 S: M! o
- // WIFI
" G/ i: Z( Z) ?9 T4 r1 n$ k - WiFi.mode(WIFI_STA);
7 s- P+ V8 I- S( X7 g O - WiFi.hostname("Sparkle");
# k8 X+ t, F: y4 `; G - WiFiMulti.addAP("wifi ssid", "wifi password");
8 k9 H9 E1 i* y0 y# w4 k- ]+ ~ - int tryNum = 15;6 V. R6 ~# E4 {/ F" _& [, K' R
- Serial.print("Connect WiFi");9 i* P. m) V: o; b
- while (WiFiMulti.run() != WL_CONNECTED) {+ X6 A8 d; |& F! F6 j
- digitalWrite(2,0);
" \- P+ v+ q& \. c7 ?; m7 ^ - delay(200);
& B" Y9 I0 _9 U% I( ]( k - digitalWrite(2,1);
4 z4 e; n' H, D - delay(300);& D) x3 J, j- L) c6 W: Z X& i- W
- Serial.print(".");. i, ^: W( w- J; s5 q
- tryNum--;
3 f6 O7 K8 [% U! ?, R- r - if (tryNum == 0) {3 h/ R7 _8 u1 g5 \5 G' X- {" J
- // 1min
) D: V9 R! M4 k, m/ z1 M+ z8 \- G! j - // ESP.deepSleep(60e6);+ C3 }6 ^1 q9 R$ s+ V
- ESP.deepSleep(0);
- q. W+ g# }. N9 \0 _ - }
& Z, @9 S, `9 Z. r J/ [ - }# a: w( M( S' X4 ` `' b6 \$ j3 q
- Serial.print("\r\n");
1 C2 T' n/ j6 \; v: Q) S - digitalWrite(2,1);
+ q* J8 r: V2 B3 {$ u! H3 m% @ - Serial.print("IP address : ");' ^, \% U0 ~# T7 Z% D
- Serial.println(WiFi.localIP());! |4 D; J' |+ ^5 ?1 s. [
- server.on("/", HTTP_GET, [](){8 P4 U" o: H j
- server.sendHeader("Connection", "close");' i4 Y8 j9 z4 W
- server.send(200, "text/html", serverIndex);6 M6 x! L/ x7 ^' g% C
- });
" m! y4 K5 f* Y8 \8 e. G - server.on("/update", HTTP_POST, [](){) T$ q% U# D. d+ u
- server.sendHeader("Connection", "close");. r' D# i4 O1 ^# o$ }
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
' r8 ]: u- T5 ]2 A4 K - ESP.restart();5 ]# J0 w+ l4 q
- },[](){% F* ]! Z9 M9 |6 F4 g6 X g' d. ]
- HTTPUpload& upload = server.upload();# \4 O% M, y# O
- if(upload.status == UPLOAD_FILE_START){
: R( r0 U6 l1 [8 W% u. t - Serial.setDebugOutput(true);3 G# o8 O6 L& t, z3 g
- Serial.printf("Update: %s\n", upload.filename.c_str());) ?2 Z7 _3 g7 U6 q
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
: w3 p- T$ V, o0 U; U - if(!Update.begin(maxSketchSpace)){
, m, l% G, n/ u6 z- F# Q - Update.printError(Serial);
; Y" v9 L: ]1 Q6 H - }% _' F. E5 y; G9 `9 Y( s
- } else if(upload.status == UPLOAD_FILE_WRITE){! \1 r; t& c0 a7 x H5 V
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){7 a7 H% y+ h# _% a
- Update.printError(Serial);4 O( [" ?9 K- F& Q; ?
- }0 r) g4 c! V; G, M w
- } else if(upload.status == UPLOAD_FILE_END){8 a3 D2 \) q7 v- m/ @3 B" l
- if(Update.end(true)){
1 j- }9 b# D$ N p7 f - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);6 X1 a, S" c, v! a6 i: K; L4 a
- } else {6 D: ~& }/ x/ r" z: i* l
- Update.printError(Serial);
: s/ z6 _$ X3 v - }0 C4 X6 X z6 l) a5 J0 T
- Serial.setDebugOutput(false);
1 l2 @( w$ W% W/ u - }
4 p; o4 Q. ]1 _9 [& v8 P. `" ~ - yield();& k1 @% I1 x7 g0 W4 z1 a
- });6 Q* T% u6 }5 D) r4 ^1 g
- 4 Z5 B/ B, X$ f6 E; E7 I5 e
- digitalWrite(2,0);
2 W% i1 H& j7 ]$ ?. b - mainAction();
, \% x/ O( H) k7 J' @4 N; @ - if (digitalRead(0)){' f3 r$ [; r- D. L# s
- ESP.deepSleep(0);4 w% Y1 Q& ^, f% D0 g, B7 v
- } else {
3 ?* b3 Q% B1 f% M - server.begin();
4 ^) w9 r5 `6 Y1 K3 L. E - }: D0 ] g$ O, M/ x7 G. ?
- }3 D) |6 D9 n4 C
- void loop() {
6 Q( w9 M0 \! d+ _: s - server.handleClient();) v& w. E! Z8 r- s( _3 C& @, o
- delay(1);
! f9 F7 D; N$ a - }
9 v q5 b/ D+ P) e# H: m3 d8 M; V0 C - String doGet(String url){
6 k8 F; q3 z; y5 W - if ((WiFiMulti.run() == WL_CONNECTED)) {$ a7 F, c4 K( G- Z0 L
- HTTPClient http;) f, E% s# Q' C. T1 F" J
- Serial.println("[HTTP] begin...");
. O& m/ K. s- i7 r5 u, p - if (url.startsWith("https")) {
8 W( X; U* T7 _) N - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");7 T/ f$ O0 D2 O3 m* c$ V$ _
- } else {
9 ?; c+ e R$ k* _2 v# h: W! H - http.begin(url);
7 S1 I+ m5 f' d! d" f6 | - }
2 ^9 V0 U v* ~0 } - Serial.println("[HTTP] GET...");
. N# G3 b' o0 I4 Q; \- Z, X - int httpCode = http.GET();' Y+ j1 \$ h) ?( F: W1 t" t- a
- if (httpCode > 0) {
8 t, Z/ e! E6 _$ l# G' q: l4 L - Serial.printf("[HTTP] code: %d\n", httpCode);% b& V+ [3 r5 h$ [+ A
- if (httpCode == HTTP_CODE_OK) {
4 E! c" r/ f( Z+ } - String payload = http.getString();# z+ Z2 \. q! q' z. u% K6 M1 Y% W- K
- Serial.println(payload);
! r* _) B) u7 ?4 f0 u7 Q - Serial.print("\r\n");
/ `- O% ?# v9 _1 B6 p# b - return payload;/ c& q4 [4 K0 m' `. ~' r T% \
- }
; X% |# [4 N- A1 I$ t3 d - } else {
% J2 R9 j& C8 p! f: \8 v1 E3 W" d - Serial.printf("[HTTP] GET... failed, error: %s\n",/ c. @2 y) }: o- b0 A
- http.errorToString(httpCode).c_str());( L% |7 `) J/ o5 W8 {' N
- }
# h" G) ]3 l! U0 U - http.end();
) m3 S, B& y0 _! E# R9 ? - return "";
$ t, P1 @) m' T: t7 A0 ~! h - }0 E( ^( U- v6 @7 S) C- \' l& Q
- }6 Z% ]& z9 l P3 y4 D
- void mainAction() {
* f: n7 y1 c0 g$ o - // 发送请求( Q3 L A" ^6 [' g6 f* b
- doGet("http://google.cn");
8 m% E! g9 y" a; I7 g% M6 v - }* [+ [- E( M) w/ C, m! U- H
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