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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)
( ]1 e& h! T2 z- #include <ESP8266HTTPClient.h>: A, s( _+ S5 r# Q( Z" @
- #include <ESP8266WiFi.h>
: p" |( q, n2 x' M - #include <ESP8266WiFiMulti.h>+ T$ N# S' H) u a; M
- #include <ESP8266WebServer.h>
1 k- C: n6 c! N% ]% {6 w - #include <arduino.h>
. O. [4 h1 X. ?- c4 a - ESP8266WiFiMulti WiFiMulti;) Q2 R* h0 S7 ?' U
- ESP8266WebServer server(80);
( k# |* @( L, {3 p - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";: P- M/ Z; v7 ]9 |6 q
- ADC_MODE(ADC_VCC);
2 M4 D P8 [0 e0 }2 _8 W - void setup() {) A9 I/ c2 A% K# U" }% d/ }7 G
- Serial.begin(115200);
1 s! y9 V: r9 b5 y% N* o' m - Serial.print("\r\n\n");7 |$ R! s* V- c" y, w. A
- pinMode(2,OUTPUT);" O, Q( O5 D9 v7 P' `
- // WIFI3 @8 \* x6 u. ]. m
- WiFi.mode(WIFI_STA);
( O! ~$ a `( ? - WiFi.hostname("Sparkle");4 H* N- r& A( ^8 s% A+ {% n
- WiFiMulti.addAP("wifi ssid", "wifi password");% z9 H1 _( j ], q3 k8 A3 s& U
- int tryNum = 15;. h) D4 P2 U$ I' q, O
- Serial.print("Connect WiFi");
4 C/ J$ M+ E, h - while (WiFiMulti.run() != WL_CONNECTED) {/ N% K! S$ `) E9 E" R) S
- digitalWrite(2,0);# }' q; a* p3 b& I, S$ M
- delay(200);$ ?* n4 K7 M5 W; n$ }
- digitalWrite(2,1);& I" X& c" @6 z/ A
- delay(300);9 Q& N) s. @) z3 F0 o
- Serial.print(".");
$ f4 e# ^6 F: v( s) `* i - tryNum--;" F) ~) ?: j0 L$ ?- z
- if (tryNum == 0) { R/ D* y9 k6 q) P: N) X$ O. Q
- // 1min
9 n0 N0 V/ z4 ^+ J - // ESP.deepSleep(60e6);" F0 Y' s" \7 C# ~6 a
- ESP.deepSleep(0);; N8 }! W+ z" G( Z0 ?
- }0 T$ r' g) j; c; F, o( y# H" H/ j8 n
- }7 D* H. R4 X+ x
- Serial.print("\r\n");+ }' e) o& g$ p T! |
- digitalWrite(2,1);
& V( ?0 a. @: o- u- m" T - Serial.print("IP address : ");
3 g P F" V y( D - Serial.println(WiFi.localIP());
w5 p2 a$ N3 ~ q8 t) p - server.on("/", HTTP_GET, [](){: N2 q/ _2 Z7 P" `' c
- server.sendHeader("Connection", "close");
# e9 ?! f7 ^, U3 _ - server.send(200, "text/html", serverIndex);; t0 r% C g$ d" R6 Q
- });7 h @) h: Z) T1 H
- server.on("/update", HTTP_POST, [](){% V3 J, V f! O, F+ E2 f: H
- server.sendHeader("Connection", "close");
) z1 u, N: F' d) f5 L. B - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
9 P1 U' C3 q# J+ I/ u. }1 `3 |4 ~ - ESP.restart();
; D" _) r8 g8 z: \4 D; Q/ }. ^ - },[](){+ y3 e, _4 w5 j5 J7 J4 B
- HTTPUpload& upload = server.upload();* y- Y) e) D- S/ [! q! ^; I
- if(upload.status == UPLOAD_FILE_START){& j# L" E7 d! [6 |5 {' ?$ i/ N/ j
- Serial.setDebugOutput(true);) q7 i4 Q3 Y1 G' G
- Serial.printf("Update: %s\n", upload.filename.c_str());6 w) c* R& T& n
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;$ m5 L. M& Z; c- e! ]& y) L
- if(!Update.begin(maxSketchSpace)){+ Y& y5 x+ M, t$ R |) e3 U
- Update.printError(Serial);
5 ~! E' N/ ?& Q. } B. J - }/ s( l, s" R, \3 b
- } else if(upload.status == UPLOAD_FILE_WRITE){
- ]% D I) F/ S# y - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
Q9 n/ m+ m6 Q - Update.printError(Serial);
) ?% `+ r0 G% O% o - }) c" W [. i7 G3 t# {
- } else if(upload.status == UPLOAD_FILE_END){6 D9 k3 b* R* z8 T4 f4 X0 d
- if(Update.end(true)){$ P! S" r$ X9 Z' E0 m0 `
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);( ~7 y! v# k: x- U9 z h, a
- } else {
# P. a4 p* m: U2 ]7 `5 W - Update.printError(Serial);
2 i9 {$ x, c% ~! [ _ - } l5 W U3 c9 f- n1 E) w4 w/ W! g
- Serial.setDebugOutput(false);: `- z0 Q) d' _$ W4 }
- }! h: Q; y' V8 y5 d9 d* u6 F
- yield();
s6 V% n" n+ g7 o% b: |8 Y - });5 S* u, \6 o7 H3 n3 f) j
- 5 X! D* U. E& w+ o# Z8 Y
- digitalWrite(2,0);+ J0 N; V! x h6 K8 ]
- mainAction();
( J- c% _+ J$ g' R! T( V - if (digitalRead(0)){! v- u5 K; ]. J* J* J8 C! o
- ESP.deepSleep(0);, A2 Y- `5 @' B' z& d
- } else {
- X% T. }( k, ?* _ - server.begin();) v- i3 W& Q, D8 V) B+ q5 K
- }5 i# }9 Q0 ]9 W9 w t0 l- Y
- }, Q& R- U, Q5 y( h
- void loop() {# I% K/ P* G9 P$ ^& q$ X8 c! u
- server.handleClient();
4 S7 I8 O& m2 o( x* U" r" \ - delay(1);$ \- [* B/ L. I) K( v/ ^ N$ d+ D
- }
$ [! r0 R- W5 \' T - String doGet(String url){
$ T7 W; x( V6 |* S - if ((WiFiMulti.run() == WL_CONNECTED)) {
+ b$ |5 ?7 V% w - HTTPClient http;0 A+ T i; P* W6 G% a4 j9 S3 W
- Serial.println("[HTTP] begin...");2 N" c- U- c, r+ ^) u
- if (url.startsWith("https")) {
, Z& H2 a. S0 F' v5 J$ t ~ - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");& z/ ?- _0 ?2 R; q
- } else {
! I8 z6 j6 _/ t) N& w - http.begin(url);5 R8 O# R' ]. D% p Z7 Q
- }
" V; L8 Y/ O# }" ^ - Serial.println("[HTTP] GET...");
4 o. B( G# ]! d8 y. v: M# U. ~ ? - int httpCode = http.GET();6 Z! I) n i/ [1 S8 r4 c
- if (httpCode > 0) {! `. m2 o- x8 g) w* r+ } S6 H6 C2 i
- Serial.printf("[HTTP] code: %d\n", httpCode);5 @$ v) b6 U6 C2 }4 M9 M
- if (httpCode == HTTP_CODE_OK) {
A( m. P: g# K$ ` - String payload = http.getString();" ]. }& e2 m' x& ~) ?" j
- Serial.println(payload);9 d$ _' [. \; p
- Serial.print("\r\n");5 q$ U& o J; _( e
- return payload;
5 s5 S, c3 C% z9 s9 ?3 p - }% _9 p5 B- J, t6 T; P x( Y
- } else {/ B6 n4 v6 }: h- m6 w8 x8 [! `
- Serial.printf("[HTTP] GET... failed, error: %s\n",$ _& x2 L, b3 F0 U) Q; x. j
- http.errorToString(httpCode).c_str());
3 e# O2 J$ s% _3 _5 Q9 q* b0 \: b' j - }
- B. A2 m! ]9 x - http.end();( J* M" c+ }0 f4 E4 }- a
- return "";1 d0 ?4 P$ _! u* m; S3 ^
- }
- y/ h2 T% S5 J- V0 I6 y - }
8 L, J9 Y6 g0 }$ X8 Y - void mainAction() {
4 r8 {- j( z k: U# r' f5 S& I" v - // 发送请求
9 W5 _! C% s2 L8 q - doGet("http://google.cn");
. V2 C: f- A( w) r E# o - }5 O9 c& q/ U) q% ~3 R, Z; t
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