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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)" Y& _' ?" Y! K' W
- #include <ESP8266HTTPClient.h>3 Y9 V0 U- m! W( l5 u' O8 X
- #include <ESP8266WiFi.h>
6 l* }8 S; o1 K8 q2 m - #include <ESP8266WiFiMulti.h>. S: S$ s9 d o( m8 l! N
- #include <ESP8266WebServer.h>' K' w* @- E) P
- #include <arduino.h>1 B2 u/ N- V; v- V; S* a9 U+ t
- ESP8266WiFiMulti WiFiMulti;0 u! C; M' [9 J) d
- ESP8266WebServer server(80);
( Q( b! q( y. U4 D" B" g) a - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
* N N i; D+ n$ _( u& r# D - ADC_MODE(ADC_VCC);. r. O$ x6 p& B6 L% _
- void setup() {3 _% V$ k: D, M5 d
- Serial.begin(115200);( M% G$ E, r# R
- Serial.print("\r\n\n");
/ G, U. s: L& ]4 S0 C: [ - pinMode(2,OUTPUT);& [7 T% Z; L% Z% i- @' `
- // WIFI
; J# W! c- v2 {& ]+ U' ^ - WiFi.mode(WIFI_STA);3 y1 C4 R; D' g, O
- WiFi.hostname("Sparkle");
; l' Z: s) A/ u5 H8 q - WiFiMulti.addAP("wifi ssid", "wifi password");. T+ o/ `% E1 g& c) B
- int tryNum = 15;
2 o; S2 U* R7 }0 ~9 I! Q; N2 r - Serial.print("Connect WiFi");
* \* s# z, U% z: ?0 [* D6 `1 k9 { - while (WiFiMulti.run() != WL_CONNECTED) {$ S# x0 Q3 p$ H
- digitalWrite(2,0);& @- K2 @5 L) C& `
- delay(200);
' H) ^$ q) ?6 I; D$ s1 ` - digitalWrite(2,1);1 O: n. n. t( G# Q
- delay(300);
& P+ X/ C# S# o5 Y3 T7 E - Serial.print(".");
: O, V4 t* W& w4 f6 I* r' \ - tryNum--;1 n& K. P9 S8 _6 B* N: k
- if (tryNum == 0) {' f. x/ `3 X# s* z( c0 Y Q0 ]; v* L
- // 1min/ n0 _. W- L& A/ ^9 H4 O5 Z" C0 D
- // ESP.deepSleep(60e6);8 S8 T$ P: @2 z8 o7 ?
- ESP.deepSleep(0);, e$ p/ R0 K P& c: S( G* u& o6 x
- }# i j7 j' K) b# s) V/ k6 W. I& D8 T9 @
- }
- N' E7 A- R4 v# h8 C$ k - Serial.print("\r\n");
% `7 i( J7 y- t, `2 d* ?& M - digitalWrite(2,1);
# Z2 {$ Q$ ^8 N" D - Serial.print("IP address : ");5 I/ i) N6 t* v0 v3 |) H8 Z7 C
- Serial.println(WiFi.localIP());
- i8 l3 r" F2 ^1 h! u& t5 a, { - server.on("/", HTTP_GET, [](){
. \; \& b" D! \ - server.sendHeader("Connection", "close");
0 F' k0 O, i: P% k$ N - server.send(200, "text/html", serverIndex);* q+ K8 }$ D" [+ G4 ]
- });# Q/ m' D; l! A% U- l
- server.on("/update", HTTP_POST, [](){
* O. k9 T2 o8 e5 ^ ]8 w0 u X - server.sendHeader("Connection", "close");
s2 b( T/ z+ e4 Q* R' R - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
1 q. y& s9 n. ]) z3 a( c - ESP.restart();
' c/ v P6 H2 R8 Q @/ a5 ]: o - },[](){* J* z2 C: U E( _ x$ k
- HTTPUpload& upload = server.upload();/ z" s" [+ j0 m, N! b
- if(upload.status == UPLOAD_FILE_START){( e8 s. b5 f: Z: _
- Serial.setDebugOutput(true);. g" a! O [2 J
- Serial.printf("Update: %s\n", upload.filename.c_str());
- r$ c% W V& P6 W& h - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;% i; |: H" o7 x/ A. `; @& }
- if(!Update.begin(maxSketchSpace)){
0 z: I9 }5 L. I% A9 T8 r% y - Update.printError(Serial);
/ t; M0 ]. ?3 H4 `: A9 G - }/ W# ` L/ S) ]/ m/ |& S
- } else if(upload.status == UPLOAD_FILE_WRITE){
5 c% |" I( Y2 e K - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
; {* ?" e) y5 V" {( i - Update.printError(Serial);- S1 h" M7 _3 |9 _: t
- }" G7 u) ]* {, Q3 Z6 o5 p% o, P7 h
- } else if(upload.status == UPLOAD_FILE_END){
+ i+ H5 l' H% g/ l! P$ w" i# A - if(Update.end(true)){
7 D* e, z$ M' I - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);! l0 w5 ]9 r8 g( d7 Q
- } else {- m# b6 F* ^+ I" ]" F+ `
- Update.printError(Serial);5 W" T G/ K" K
- }
5 z" T' |1 T/ `4 d' Y. K B - Serial.setDebugOutput(false);
3 ~- ~$ p1 K! N. Y8 g- U2 Z - }
) p4 { y4 C2 p, N - yield();
6 _2 N2 N9 k$ w7 |. E9 Q5 i- d( | - }); d( I( f1 T* C7 q" m# R- B
-
$ h: s f; \& f- O - digitalWrite(2,0);* R! d) a/ _1 k% u# j `+ i4 |
- mainAction();, k3 D- e: [! l5 s+ c( v" p
- if (digitalRead(0)){, a' H2 k& }- ]
- ESP.deepSleep(0);
% R6 i( G9 Z/ c; S: [: y+ u# m - } else {* I& p+ ^4 x+ j& k% p& |
- server.begin();" I; ^% a2 U' e" X, ^0 q7 n
- }1 `" G( p$ i, G5 {1 l
- }6 W$ W; s% t2 ~% g7 n6 |' e
- void loop() {/ v9 Q Y% e+ b9 L. m5 y! D
- server.handleClient();! F' v. A" x% @( p' d
- delay(1);
' C+ N+ O. e. e- k1 ^ - }9 A4 f) b( u, N2 `
- String doGet(String url){ [0 }5 X5 Q0 n/ A3 ~7 f0 ?
- if ((WiFiMulti.run() == WL_CONNECTED)) {
$ X5 Z8 Q/ Y, W, m+ q) Q& V5 l - HTTPClient http;, T) c& v" f; a2 y9 s+ ?6 }
- Serial.println("[HTTP] begin...");
4 c9 h' U' H2 G$ k$ l3 ? - if (url.startsWith("https")) {
. p. l! \- ?- | - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");0 f$ p7 L/ ]% o' t( ?
- } else {, ^+ I/ ]! k; ~# k* B$ X& X
- http.begin(url);
0 d4 ?: m. b: f2 p - }
+ _$ K" @# h0 e& ? - Serial.println("[HTTP] GET...");
$ q2 M4 ^/ F- {* X - int httpCode = http.GET();8 [7 F& {2 C `" z1 j& R+ V1 p
- if (httpCode > 0) {
) k6 }7 s/ b. X4 R6 Y - Serial.printf("[HTTP] code: %d\n", httpCode);
E% V$ [' z+ h+ h - if (httpCode == HTTP_CODE_OK) {$ b2 ]+ R( m& H, D! V- {3 O
- String payload = http.getString();2 W9 n/ Q, K. C% A! Z. x
- Serial.println(payload);1 e4 Z7 |' A6 l/ L; @* {
- Serial.print("\r\n");! K' B) U+ E/ N$ m5 F* J, l
- return payload;
5 J* \" V G, }' |+ R; O# ?) `7 k - }8 |# j, c9 u) z* g$ D0 Q# x
- } else {$ b4 K% Q' m3 Z- j$ p/ g |) n+ R
- Serial.printf("[HTTP] GET... failed, error: %s\n",+ _6 `; J/ H; p( D& ^& R
- http.errorToString(httpCode).c_str());1 k4 r4 L5 u& U; a+ L
- }+ x9 T3 d: |( t5 |
- http.end();
2 P) g7 k/ {% c0 r/ J6 f) Q; j- h - return "";
4 _6 x5 m+ e \' A$ ? - }
- {2 i$ Y8 F4 B; \ - }
3 D9 u) o( D' d5 ^7 i - void mainAction() {
- G' {# r7 f' u. E+ o) T' E - // 发送请求& R" q* X/ E% r& n
- doGet("http://google.cn");
, J2 Z+ O3 |4 i0 G - }0 C/ T* `' r/ L: c: b7 \
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