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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)8 S1 @* J% j6 }( n
- #include <ESP8266HTTPClient.h>: b- k) J3 m7 D, ^
- #include <ESP8266WiFi.h>! z8 u/ y, F( m1 j
- #include <ESP8266WiFiMulti.h>; i) l5 U+ J/ `: K- M O$ A9 p b! {6 ]) C
- #include <ESP8266WebServer.h>1 z% f; s! F) x' E p9 O
- #include <arduino.h>& G; n% U, a! U3 [0 h1 n
- ESP8266WiFiMulti WiFiMulti;. W1 l: Y5 E. f$ }! Y
- ESP8266WebServer server(80);, O1 c, }; B, n- o, o' H
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
1 C7 g0 K& r$ F2 h( g: |. C - ADC_MODE(ADC_VCC);3 \& H* g' S* }& ^: t& l9 @0 {$ Q
- void setup() {
1 b3 \! p" ]0 i9 C% H* K- D - Serial.begin(115200);
" | O4 m9 L8 D( c9 V4 Z - Serial.print("\r\n\n");
6 x* s9 Q6 Z' u) O$ o5 M - pinMode(2,OUTPUT);
" Q- c& v. `( Q* M2 D2 [ - // WIFI
8 y5 G8 l6 S5 b" f - WiFi.mode(WIFI_STA);
/ \9 c6 D% x# @+ E+ X5 A! W - WiFi.hostname("Sparkle");
# @+ h/ C& S+ | - WiFiMulti.addAP("wifi ssid", "wifi password");
5 O6 ]; A9 W+ \* Y) z - int tryNum = 15;* e$ _, S! F9 B5 }8 t
- Serial.print("Connect WiFi");6 f: N- c1 Y7 q; W5 |
- while (WiFiMulti.run() != WL_CONNECTED) {7 { c K; ]6 W* w
- digitalWrite(2,0);
9 C3 W. w4 \* i7 e3 h+ w: U1 d0 U - delay(200);, I/ h# R7 C; ^: r
- digitalWrite(2,1);
4 J: a0 _9 Q3 r* W H5 k - delay(300);
5 a. e o" [7 B; p - Serial.print(".");- F8 [: i) E1 C; A# k
- tryNum--;
' p h: V. z. g9 l- f) ~ - if (tryNum == 0) {' N2 F, }6 p( o: Z1 A: D) q8 k
- // 1min4 B/ i& N( n5 d' m& E. b, p
- // ESP.deepSleep(60e6);
- \2 l4 J& b% S- q3 a4 R+ y - ESP.deepSleep(0);
% D. f9 B0 e# S6 y3 W - }
7 C& w0 o4 [9 c% i4 V - }
- x% L$ K7 M$ \4 W$ B - Serial.print("\r\n");3 p# D/ v p0 k% q, u
- digitalWrite(2,1);- a6 K8 b9 c2 T$ ]5 e$ P+ K
- Serial.print("IP address : ");
4 a( t$ S5 O0 K+ O) @% d2 b- J - Serial.println(WiFi.localIP());2 G& D% s# P6 k
- server.on("/", HTTP_GET, [](){9 `3 b. ^4 V2 L. K+ ]9 P# @ n' _
- server.sendHeader("Connection", "close");
r0 x. N0 C8 [. S - server.send(200, "text/html", serverIndex);
0 D# ]" a4 x8 z7 m* O$ e: ] - });" b; {* m" n/ e9 X7 {
- server.on("/update", HTTP_POST, [](){3 f! ~5 W' d* p) ?
- server.sendHeader("Connection", "close");) c# a5 u0 _1 s) r
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
8 Z( Y- O% c, z9 J' H, V; Z - ESP.restart();; m* P$ F# I8 P* G- c6 k; q4 }
- },[](){
' P* O1 y0 g& A& R- A8 x" ^ - HTTPUpload& upload = server.upload();" A& F7 \" c* Z/ Y3 B
- if(upload.status == UPLOAD_FILE_START){
" _$ u! y$ }: A1 G: f8 X2 p - Serial.setDebugOutput(true);/ t- d) O. G9 ?& l0 x
- Serial.printf("Update: %s\n", upload.filename.c_str());4 |/ }" Y) f5 ?* w
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;0 O+ T% \/ c/ ?/ a# A
- if(!Update.begin(maxSketchSpace)){% Z( V: I! S" L+ U1 G P4 N9 {: O2 {2 q7 E
- Update.printError(Serial);
( U) W: K. ^ D6 Z) U0 w, c - }1 s9 E _+ f4 c
- } else if(upload.status == UPLOAD_FILE_WRITE){
: G. B" i% }9 \) i0 a7 W& k+ Y9 j - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
+ [" E2 Z: C' x3 g: |8 e3 l( o - Update.printError(Serial);% I6 w# _. `: O' J
- }7 P7 r% w+ U+ J
- } else if(upload.status == UPLOAD_FILE_END){
/ k( ?, y2 R9 J5 [6 V, y2 m3 u - if(Update.end(true)){
! O$ \' w; j4 j" m - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
* T" u$ t, X1 H3 `0 r6 Z - } else {
- u6 f: ^6 J" j- g W - Update.printError(Serial);
* \7 u1 u: N, _, Y. j - }1 ^, d8 P: U, h* c. M
- Serial.setDebugOutput(false);& e/ ]; f; k+ v; S8 D/ X
- }. c' n) A! D; `4 D2 I* o7 W
- yield();
' c: C7 e- n H9 ]; O" b - });9 E3 i& ]4 {. D, }5 j9 o. a
- A F* B6 o; g! X3 T3 a
- digitalWrite(2,0);" C. n/ i9 F# |
- mainAction();1 ]4 H; \. P2 \0 z
- if (digitalRead(0)){7 Z, M8 S( U' J
- ESP.deepSleep(0);5 R/ E* D9 D7 d) m* N: T
- } else {1 v' g! G4 h) D/ ?
- server.begin();
2 A# s, S/ ^4 Z s2 `( r - }
* O# q# @ {! b8 u - }
( F- ^+ p+ n( ~8 n7 B3 |( N9 O3 U - void loop() {
( R- [4 [8 T8 C4 A' G - server.handleClient();7 B$ R. a+ \7 i* @ q& t
- delay(1);1 ]# ~+ t$ J! B: x
- }4 _$ N3 M+ g/ B5 N, Y
- String doGet(String url){0 b# h! q/ }. [7 v7 n$ h9 k; a
- if ((WiFiMulti.run() == WL_CONNECTED)) {
+ q- H4 m) x/ A( _, D! T - HTTPClient http;2 S: c8 v; M- @" C
- Serial.println("[HTTP] begin...");
6 A5 v) b) x% c! t: i - if (url.startsWith("https")) {/ m/ Q* v P. b! u6 W7 b
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");( \1 I) k/ K! O$ q" j2 l3 O X A
- } else { e* C* G* P; B, q6 _
- http.begin(url);# _4 S8 d0 ^' W8 x: l* a
- }& g2 k! n2 b) u$ I. M! `; b
- Serial.println("[HTTP] GET...");
0 t$ }7 u& P- x3 \+ K - int httpCode = http.GET();$ A6 _% {2 E5 p* K. n
- if (httpCode > 0) {
/ l5 l* P" |, Q4 [# T1 T, @; Y - Serial.printf("[HTTP] code: %d\n", httpCode);
# K! r8 ?' E$ N3 J - if (httpCode == HTTP_CODE_OK) {7 k4 m E$ I/ }, S+ T9 B
- String payload = http.getString();
7 e% a$ i. ]. L2 M+ ~, A: [ - Serial.println(payload);6 J0 \! j; h& E( [' f% i5 j' }* s8 m# k
- Serial.print("\r\n");0 v/ @8 D. U {: j
- return payload;% K2 i! G( u8 ]; P$ _
- }
$ \0 _ F0 Z3 x - } else {
* l- K* D* `+ t" V' D- Y4 S7 M/ T - Serial.printf("[HTTP] GET... failed, error: %s\n",
% ^. P, ~: I% \% s4 O3 ` - http.errorToString(httpCode).c_str());
2 k' _6 U/ I* D9 _% I - }
6 Z, l, m% p$ c& R* `5 t - http.end();3 I3 X$ i1 V" L
- return "";
3 d! t; T7 a$ i( v* v/ o - }/ C: h' I& A1 k7 a
- }
* H: B# F4 | h. K' h2 P - void mainAction() {# ~4 j2 q2 m9 \& G+ ^; }! a
- // 发送请求
4 F( R+ o$ h2 j5 o }+ V - doGet("http://google.cn");
u0 s# v1 }/ I8 i5 Q! e) W" U6 r - }$ {. O7 p/ @; V, G4 _9 s8 [7 \: K
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