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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)
* m. C& r& e& g% x- #include <ESP8266HTTPClient.h>
+ A5 e9 @! m3 N+ y, u& W - #include <ESP8266WiFi.h>: }% A u2 j1 ~3 ?: F7 ^6 U. w* ?- C
- #include <ESP8266WiFiMulti.h>0 V; ], O- n% ~& d: i2 h
- #include <ESP8266WebServer.h>, K3 B) i( O, B" v
- #include <arduino.h>8 _- O( K& _; m; O$ }2 f9 u! `* q
- ESP8266WiFiMulti WiFiMulti;
0 ]* q) z# Y' r) X: g0 O$ w - ESP8266WebServer server(80);+ L/ Z- R9 k7 \) L% ?
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
* [# K1 G% b& I9 c - ADC_MODE(ADC_VCC);
* ^# D+ ?4 W0 l& ?# f% h - void setup() {
+ L6 V1 Q" r5 a6 o- p, o - Serial.begin(115200);
, ?( K) J# u% L9 t( S- _" S - Serial.print("\r\n\n");
0 n8 B2 g; X, E- h0 S1 i/ y5 i - pinMode(2,OUTPUT);
$ J- |" W3 K- D - // WIFI0 X# b( j" z2 r0 C3 ~
- WiFi.mode(WIFI_STA);
- z5 z5 q0 h6 [) S) c- e8 s - WiFi.hostname("Sparkle");6 Z" B3 o; {$ Q8 m9 [
- WiFiMulti.addAP("wifi ssid", "wifi password");
$ p4 j* ?/ C; w% n# ~/ _+ X - int tryNum = 15;
5 g* c/ y& x3 q1 \1 f: \ - Serial.print("Connect WiFi");0 l; i! e" l" W' i8 r
- while (WiFiMulti.run() != WL_CONNECTED) {. c! X+ K% Z6 @& z+ y# L9 i# |! [5 @
- digitalWrite(2,0);3 ^6 h0 C; M$ s9 Q
- delay(200);: @+ a: k: g& |& Q1 Z5 n
- digitalWrite(2,1);! N* c" z, h/ b# t4 J T) U
- delay(300);
) P4 I: d$ G% [ v. Q* P/ ` - Serial.print(".");5 F& f" B7 ~% v& w8 j
- tryNum--;. X( D2 y0 ]& }. ?3 b
- if (tryNum == 0) {
3 [+ C) S% [' j& t - // 1min
8 `# n5 [+ C* o; V$ t - // ESP.deepSleep(60e6);
0 J7 }; G! x$ {, T - ESP.deepSleep(0);) B" u! w+ ^* O! x- A6 k
- }$ K* F2 i& C" d
- }
4 N- x. ~. s, ? - Serial.print("\r\n");
' B' U* F! P( }2 \: F* l c - digitalWrite(2,1);
9 d$ x$ j( y1 I l6 G) Z - Serial.print("IP address : ");
$ ?0 U) h! t3 r* d' S( t$ u - Serial.println(WiFi.localIP());+ m. y5 O4 Y/ K- ?! I! E% c L
- server.on("/", HTTP_GET, [](){7 x, [. K! s. X5 X
- server.sendHeader("Connection", "close");
9 |$ `! M0 l& |; N/ W) `; S - server.send(200, "text/html", serverIndex);
: x6 k+ \& ~% |6 D* W - });
; m1 _. F- [% ^5 y) G - server.on("/update", HTTP_POST, [](){
4 x. l9 Y2 n3 {# i6 N" y - server.sendHeader("Connection", "close");: d, |1 `7 s6 m% ~6 W
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
- g5 C% Q0 M7 M+ ^ - ESP.restart();) e [$ s3 X% r% V
- },[](){
6 E& X6 x0 f- n$ c$ T6 Z% A - HTTPUpload& upload = server.upload();
I$ U4 \ h( n! p( X7 C - if(upload.status == UPLOAD_FILE_START){) g. i. }: S* @( j( g3 c/ i
- Serial.setDebugOutput(true);7 I( d8 z3 Y$ M/ t" s- i
- Serial.printf("Update: %s\n", upload.filename.c_str());
3 O$ |3 ?/ M; o: ?) V - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;7 s+ `" a% e2 z5 R
- if(!Update.begin(maxSketchSpace)){7 l9 \$ R# r* N% W3 g
- Update.printError(Serial);
* C3 x9 R1 _/ Z! L3 R0 |/ w4 k% ^ - }
* A' c1 D2 F6 V& S0 z0 X. N* p - } else if(upload.status == UPLOAD_FILE_WRITE){
4 N% B& A+ R; r) `' X3 b4 B: U" b - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){( X) r* E2 x/ Q7 F3 e' D- x
- Update.printError(Serial);
9 Q8 b; M6 t8 m T9 Q - }
9 c7 t8 B, i2 L - } else if(upload.status == UPLOAD_FILE_END){3 U( o$ T e, |0 _) U
- if(Update.end(true)){
2 e7 l2 y) \3 A5 j - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
( U7 b- j! ]6 c - } else {. b( M% u% P, c1 f) q/ [
- Update.printError(Serial);
% X& [. J& |8 Q2 M# k - }
" g7 B9 [ c q0 R8 }/ V" j - Serial.setDebugOutput(false);( I$ B* A! I5 C' t7 ], E: J
- }
1 h4 a7 c H! B4 U1 O/ f: \ - yield();
% c# v* v/ b) S- \ - });
# U2 z$ x4 `6 s+ _, G -
, P1 H2 F e. y; \2 m6 h1 y - digitalWrite(2,0);
( {9 c& H0 Y0 H3 O- J) R, E8 d - mainAction();! \/ v. t1 p* V5 a- \0 Z4 Y
- if (digitalRead(0)){
" n* Y+ g1 B! K - ESP.deepSleep(0);
# v! |% j% g5 q6 S# h) w - } else {
( K) M- Y, U) t2 b! _% {2 Y - server.begin();
# [( I J* q4 T: t. k - }7 f6 U" s9 m) h6 u
- }
6 B4 \6 q6 {6 u% u( j: B; q - void loop() {
V2 G1 G+ u- |! M* o. Y6 l - server.handleClient();; D# |! J3 }% R0 W
- delay(1);
# p" f8 u+ C( O! V, f4 b7 V g - }
! `4 j! m8 C9 E" @6 j0 I - String doGet(String url){
5 Y* V$ w7 V2 q D - if ((WiFiMulti.run() == WL_CONNECTED)) {4 s& j! h7 C5 |1 T; x6 [5 b
- HTTPClient http;
. }( e$ v: \' { I - Serial.println("[HTTP] begin...");/ o8 f. O' r( r0 p- Z- z
- if (url.startsWith("https")) {4 v# `+ z" D" w T; g
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
) d2 R' `% J6 F - } else {! A1 W" Y( }5 j
- http.begin(url);
. r, A& a/ J; N2 g1 A - }
8 x# k% S5 ^) t* u3 R - Serial.println("[HTTP] GET...");
3 E* d0 l" P8 _; `; }( v% g: } i - int httpCode = http.GET();
; D# N% Y" R; K! Z- p5 i - if (httpCode > 0) {' Q8 B' W- y, j- I
- Serial.printf("[HTTP] code: %d\n", httpCode);) M, R" v. A$ k0 A T0 j
- if (httpCode == HTTP_CODE_OK) {- L# F `: a/ G5 p) z& P: m4 ], @
- String payload = http.getString();1 B. q3 Z/ |8 N+ { H$ ^
- Serial.println(payload);& k) I2 H1 {8 |$ `
- Serial.print("\r\n");
9 F, n9 _) A1 ?9 q* Q - return payload;8 f. `" o! _6 l
- }
$ K: ~+ X: a" P/ N/ z3 @3 @ - } else {0 c( `2 @0 i% p3 G
- Serial.printf("[HTTP] GET... failed, error: %s\n",
8 C. u/ ]" u6 [( c# B - http.errorToString(httpCode).c_str());
, N6 |2 p. H0 ]* w - }8 x% X! w% k5 N; }, `1 u- _4 ?- p
- http.end();* a4 C$ V0 _4 o, D
- return "";
7 e6 M7 o6 M7 u) f4 u9 l - }
. k0 i# C3 w; M6 A. x1 ^" {% t. o - }
3 e8 p$ X! a X% T$ p3 w - void mainAction() {
+ f+ ]3 D w. w! b" M! P5 Y - // 发送请求
/ y0 G( r% |/ {1 C |! Q) q+ t* r - doGet("http://google.cn");
/ l7 g. e c0 M; X4 `$ P3 _ - }0 T5 y+ r7 [4 j4 p0 M
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