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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)6 [6 F, x& C( @ M7 P4 S8 l
- #include <ESP8266HTTPClient.h>7 c( [5 d& E7 E
- #include <ESP8266WiFi.h>; U: X$ S" W1 t, C1 s, ]
- #include <ESP8266WiFiMulti.h># g) Q0 h: \3 D E1 y
- #include <ESP8266WebServer.h>
) o9 z" u0 ^ G - #include <arduino.h>
$ I1 @# z8 T8 g5 | - ESP8266WiFiMulti WiFiMulti;$ V/ Z. g" l5 o! C* K% D
- ESP8266WebServer server(80);7 {6 r S. H7 v6 w, M# `+ f
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";2 h& D! Q' `/ B, Y1 v6 K* z i
- ADC_MODE(ADC_VCC);
' R; O* x! f! R, L) A) s4 Y3 A - void setup() {
+ \7 x% C8 X1 J3 p - Serial.begin(115200);( {0 U. ~$ U- a4 } T
- Serial.print("\r\n\n");
8 w3 f, F. V2 e/ w3 p& n+ R1 F4 w - pinMode(2,OUTPUT);5 L8 T, P' Q* w- u" Z% U
- // WIFI
9 j) F. e8 ^/ u+ i3 B3 }# j6 v: I* A - WiFi.mode(WIFI_STA);4 X( u% E$ @* g" }* _$ h$ B3 P& i
- WiFi.hostname("Sparkle");+ ~5 }8 q( A$ @& F
- WiFiMulti.addAP("wifi ssid", "wifi password");+ \, P: v1 a& }" I4 u; A% W& v( `+ _
- int tryNum = 15;
' H) I- p# [! p% ? - Serial.print("Connect WiFi");
; |. ~8 S+ ?$ u$ Y8 o6 K& i" L - while (WiFiMulti.run() != WL_CONNECTED) {
* x; b1 E) E- E' @: n, \6 E - digitalWrite(2,0);
5 I1 d, Z7 I; {( H0 P. ~' N - delay(200);/ L$ |; I1 X, M' x) b
- digitalWrite(2,1); l0 _5 M/ ]) s& J
- delay(300);" R5 v- w" @+ [: _, R6 f
- Serial.print(".");
- L# G7 }3 P1 X$ z+ E) M" }: f - tryNum--;
8 K+ f& e' N# @; | k# i G5 l+ i - if (tryNum == 0) {* e* l3 B( ?4 }6 q( K- B. [ L
- // 1min. @, g6 q( o2 b( h: L; @8 ^8 }, d
- // ESP.deepSleep(60e6);4 u: D2 |; F m/ w
- ESP.deepSleep(0);
' Q% b2 }. Z( g7 ?$ _) K - }
% S1 O- Q& a( h8 x - }
9 T6 M2 }' N @; l1 l" U7 ~" [: c! v3 x - Serial.print("\r\n");
2 v) V$ _4 k1 h1 g4 c( k - digitalWrite(2,1);
2 X! O; N# ^7 y8 I! h - Serial.print("IP address : ");* d( @5 [- N+ O3 `( Z
- Serial.println(WiFi.localIP());
4 k; ]7 r: C, x: v8 t( F0 i3 r - server.on("/", HTTP_GET, [](){0 \! ~3 S8 j9 n" R) f5 `: L
- server.sendHeader("Connection", "close");) Z0 g! A2 `- ], R
- server.send(200, "text/html", serverIndex);2 z9 K* Q2 D% q
- });0 r' ~( N" i& n0 ]7 k: j& w
- server.on("/update", HTTP_POST, [](){
* z1 ^2 w" \/ O# Y8 T0 |) G, | - server.sendHeader("Connection", "close");# X. s, E4 y, ^/ O; C% h9 V
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
3 |9 `1 c# @$ R - ESP.restart();
; ?- |4 k) n- W w7 L - },[](){: M8 k3 S% @/ D
- HTTPUpload& upload = server.upload();( _4 z ~2 b& Z% }
- if(upload.status == UPLOAD_FILE_START){
; H. y9 c7 `7 c6 `5 F - Serial.setDebugOutput(true);2 r9 {7 s3 S/ s: O
- Serial.printf("Update: %s\n", upload.filename.c_str());
2 h# \7 a! y4 L- t; z* c. v - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;* v5 `9 ~" K% N7 R0 O
- if(!Update.begin(maxSketchSpace)){
- T& \% a/ l& S3 p6 b1 E - Update.printError(Serial);
! Z5 l# K6 D( v - }
4 h7 @" Q) E5 R5 ~ - } else if(upload.status == UPLOAD_FILE_WRITE){
) V9 U; d5 Z+ Z, }* ^+ a8 y - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){( o# N) k! v: u4 e& n2 W# W
- Update.printError(Serial);
" }( V, L, d+ x9 J- |) t - }
) i: W" ~0 o$ e% S) P$ [# Q - } else if(upload.status == UPLOAD_FILE_END){
% L% k- p# o/ h2 g ~; c o - if(Update.end(true)){* m$ a' L) `/ X
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
: d9 t- e- _: k - } else {
3 N6 a* J( b: j) ~- z+ G6 b - Update.printError(Serial);
$ q! v2 c: S- U) Z! C8 j - }" W- m# {# p2 p' j! k6 P4 B& w
- Serial.setDebugOutput(false);
, `) J8 `$ s, I" i3 b" W6 S - }
+ Q* a7 m" C8 @" u% u: q - yield();8 B& G3 [, W5 n/ c
- });
% A: y& T5 K/ B% g - ) Z( x+ h- X* a! [$ b
- digitalWrite(2,0); U2 ~& t& E! P+ Y9 R. v% w
- mainAction();
5 G4 [4 M) d# P/ i/ q# S2 `: ] - if (digitalRead(0)){$ Z% s! X) R* Q# D" p+ y
- ESP.deepSleep(0);1 I; Z1 \" Q2 U/ G$ V
- } else {
- s7 ^1 m$ e+ }+ D* g - server.begin();
$ `+ D+ o' V* D a- g - }
) x% w- l+ G' z& H - }
# v- @- R( ]! O5 ]( i, A% e - void loop() {7 Y" Z' `" w9 O( R, Q2 e
- server.handleClient();
9 v3 Y- T$ X' l* @" j0 h - delay(1);
8 p! f) t, x/ n" K3 G - }
4 z- M& j4 c- _3 Q: F - String doGet(String url){; E' Z, S# k" }0 e. q5 F
- if ((WiFiMulti.run() == WL_CONNECTED)) {7 h7 V# u/ H0 y1 i6 ^& k
- HTTPClient http;+ D& O/ z/ g! l8 u; |2 a( d4 U% b
- Serial.println("[HTTP] begin...");
# }# k, Q9 e1 I! ~ - if (url.startsWith("https")) {
. \ E; s+ C+ z$ n - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");- c6 t! N Y: B! o# V
- } else {
2 N- |! D/ q$ M - http.begin(url);1 S2 {2 y$ A/ l. S1 Q9 o- A
- }
6 F+ x: S C( | - Serial.println("[HTTP] GET...");
: j0 o6 D$ n( p9 S. O7 ~ - int httpCode = http.GET();' \9 p2 N1 L: Q. {8 {" D: C
- if (httpCode > 0) {, J& q0 F+ J2 b$ {' v4 V$ r3 \
- Serial.printf("[HTTP] code: %d\n", httpCode);
* M u+ b) V- K& g; \# ] - if (httpCode == HTTP_CODE_OK) {
6 A0 t# S" ]5 A( t9 d - String payload = http.getString();
+ _- D3 p+ _& O/ {, E - Serial.println(payload);/ A1 i7 P- g2 ^- I+ i: I
- Serial.print("\r\n");
( }: K. ^* c1 _1 _ - return payload;
% S1 A. j8 a1 e8 Q% @/ z - }6 h; M3 ^- b5 {" i0 u6 }4 P
- } else {
" z f/ z$ S! R) W4 f - Serial.printf("[HTTP] GET... failed, error: %s\n",! @" m9 s$ R& O! Z0 N2 B
- http.errorToString(httpCode).c_str());% [. b+ ~+ P6 w
- }; v1 ^( Z, f/ R# e: F4 |9 \
- http.end();8 [; a' q: K) p: J( \# z ?" x
- return "";, F; _% s/ z5 F: c* q/ }
- }- N" ^* b: G! D7 [' i) t3 C
- }
9 l( P' f7 Z5 P6 }) a ?( P - void mainAction() {1 N' L. l/ ]6 O" L6 f% f
- // 发送请求. z1 e" K( p) L L( A2 [. a3 n
- doGet("http://google.cn");
. A2 z/ U# ~2 j) [ - }
/ G: P" m8 k& E) f
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