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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), t) Q8 P* ?3 n
- #include <ESP8266HTTPClient.h>
0 @1 a; z: D" D/ X3 S - #include <ESP8266WiFi.h>5 |7 S' H$ h. N8 y7 ^, Q) g
- #include <ESP8266WiFiMulti.h>& Z& ]$ }& o" H. y& }
- #include <ESP8266WebServer.h>- E; F; D- I/ F
- #include <arduino.h>% n- V* u0 Y1 y/ k& ]& l6 ^
- ESP8266WiFiMulti WiFiMulti;+ }8 l6 C, I, I k
- ESP8266WebServer server(80);
' V% H! E0 M- ~* Q) M! x& `: d - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";6 O, z x$ I4 s G: J
- ADC_MODE(ADC_VCC);
* {9 f4 q1 y: C2 _6 m - void setup() {
! a* S$ r p3 F7 C% m - Serial.begin(115200);4 g9 N9 q' ] T/ m
- Serial.print("\r\n\n");% F9 d3 e/ Q! B2 Z6 L" O, F i
- pinMode(2,OUTPUT);" h, l4 T' r& R$ p& |
- // WIFI: _0 A; E4 }3 ], ]
- WiFi.mode(WIFI_STA);
2 h- w( g: c4 O) _. f9 G - WiFi.hostname("Sparkle");" P0 J1 B6 N% J1 Z) X3 l: m
- WiFiMulti.addAP("wifi ssid", "wifi password");8 N6 b K# }( J$ z% D) ^5 s* l6 {
- int tryNum = 15;, ^, L. _, L( \: n$ n% A& H
- Serial.print("Connect WiFi");$ ^. Q2 M9 n1 n; h& k
- while (WiFiMulti.run() != WL_CONNECTED) {
3 J" p: }8 y ]; P8 O - digitalWrite(2,0);
8 Z* K9 B, b" Y& o* I% e - delay(200);8 r, L7 P$ e( B3 e8 i
- digitalWrite(2,1);+ A. A# g; {* h, p! Y" B4 P; D+ I
- delay(300);
. x1 h1 X7 b) o; O( }0 Q+ M- U' v - Serial.print(".");& g e" f' Y. H
- tryNum--;8 B3 k5 d' \* g$ x8 V" r* @+ Q
- if (tryNum == 0) {
% S% G4 k8 d1 E. Z6 N$ } - // 1min# X# f4 A7 Z' o4 v" G
- // ESP.deepSleep(60e6);+ X% K1 O9 }7 H# ?5 O" ~* Q
- ESP.deepSleep(0);8 x2 s+ E/ R8 X8 O. H; z+ v$ e5 l
- }; s& G1 C0 m$ p6 c) a) O: S9 ]
- } V {* V+ y* b6 [6 f! f/ b
- Serial.print("\r\n");( H8 y$ `% ~3 P, b8 t z+ y
- digitalWrite(2,1);
C+ a3 {1 G+ y$ d; O/ _* c9 j1 e - Serial.print("IP address : ");
& }2 Z: t8 i9 L7 @ - Serial.println(WiFi.localIP());
. k7 \0 d; r5 B" P) j7 ?+ E - server.on("/", HTTP_GET, [](){9 M; S1 G. W) W' n+ C
- server.sendHeader("Connection", "close");6 p5 m& [, B2 o
- server.send(200, "text/html", serverIndex);
% Z+ r7 g$ i) s( i" Q - });
( o6 G+ f9 T9 l p* r - server.on("/update", HTTP_POST, [](){- R G6 |/ d7 L
- server.sendHeader("Connection", "close");
% b8 o0 L& g' J7 ^ - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");. _+ Y6 L2 k: m
- ESP.restart();
2 M/ g Y7 j; U2 k, { z - },[](){, I) y8 X; _! E
- HTTPUpload& upload = server.upload();
+ C# Q/ v7 H7 k+ F5 b& `2 o - if(upload.status == UPLOAD_FILE_START){4 o, u6 w- X' h, o# N: }: {
- Serial.setDebugOutput(true);/ x0 b* N3 w# a; Y
- Serial.printf("Update: %s\n", upload.filename.c_str());# x& L4 ~- C& ]9 t
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
9 _ J+ D6 M4 n. k9 A: Q* j4 h( O - if(!Update.begin(maxSketchSpace)){6 O- f2 J) s! O( P
- Update.printError(Serial);
/ t4 q3 ^! V/ d$ D- Q - }" K8 Y/ o# u I: x7 g
- } else if(upload.status == UPLOAD_FILE_WRITE){/ e, n; m; y5 K6 H s
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){* ?. }4 S9 C) [# I' F- `
- Update.printError(Serial);2 \$ C7 Z0 P' M1 Q; J6 j+ p& `
- }
" C. U5 r. k) @* P - } else if(upload.status == UPLOAD_FILE_END){ j. Y# t7 Q2 m/ l1 e; e4 I2 [
- if(Update.end(true)){
+ j8 N8 O6 R6 _/ p; s - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);! ?$ a$ e; e! q
- } else {4 W( X" Q$ Y" I; o0 T3 I/ n
- Update.printError(Serial);+ i; H Q$ D8 `0 ~
- }
3 ?4 k F, \% ?! z' |8 M& \ - Serial.setDebugOutput(false);
% M( I1 T+ |- T8 R, ?" A - }+ o$ \+ @( X4 d, P
- yield();+ ]) i. ]! B' u; U
- });3 U- z2 v* y2 F9 n9 e6 L5 q
-
" ]) R! a* Y$ d - digitalWrite(2,0);
/ G- b' q' D! T* s - mainAction();3 |# ~+ }: `0 F) ?9 S
- if (digitalRead(0)){8 d" j( |7 Y) A6 ?4 t) S
- ESP.deepSleep(0);
1 K0 o: p" U9 s, q7 k" y. A# k - } else {% ^6 J+ E' [) [! c: {1 g% E3 \' e) Z! l# h
- server.begin();. U( _8 I1 t \
- }7 s; @0 q U& S T! i0 k
- }# j. U- e2 Q& G1 |7 N! x
- void loop() {! s) S8 i1 K- ]. K! D8 c+ t
- server.handleClient();0 W2 c# G ? L8 Y. u
- delay(1);
* ^# n9 k( b" d- N+ X0 Q, B3 i& G - }
. y5 }4 V( A C) v) ~ S* Y - String doGet(String url){
, I8 O/ Y9 d5 o$ M6 C - if ((WiFiMulti.run() == WL_CONNECTED)) {
! N0 @5 H2 P) X+ @, d3 i - HTTPClient http;# E0 V* m. \) ^) q4 V
- Serial.println("[HTTP] begin...");# _5 }# A( J% w3 C! {! ]: u
- if (url.startsWith("https")) {
g4 d, l2 h) l - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");1 Z- ?6 v1 j7 ~! m/ K" Z
- } else {
0 G. O3 x+ g1 q1 I: R - http.begin(url);
! ?- M% g d( ? - }# r) Q/ C5 i5 r2 a5 B
- Serial.println("[HTTP] GET...");
% L; s5 D9 U; |% B- U9 b - int httpCode = http.GET();
d- G4 G& Q: v. M - if (httpCode > 0) {
" [5 m& h) h: I; x5 c1 M* f0 n - Serial.printf("[HTTP] code: %d\n", httpCode);
: H" e2 w$ i6 H1 l4 W% G - if (httpCode == HTTP_CODE_OK) {
# i+ a# s2 m+ ]) _) j% M* b6 H - String payload = http.getString();7 d' x1 U0 T5 Z* W" K$ @2 \
- Serial.println(payload);/ a% W! B% ~8 B% p8 Z5 j
- Serial.print("\r\n");5 b3 w' e7 o( F
- return payload;
/ n5 L3 H0 O" {0 B; n! A0 t9 P - }' n' `& d7 X* P% X7 ?
- } else {
6 y i$ j( S' V$ _/ a - Serial.printf("[HTTP] GET... failed, error: %s\n",
1 f% i6 M! J" r# z - http.errorToString(httpCode).c_str());' v- E7 g8 t& ]; O3 \& [; z. V6 b
- }
3 p5 g- K6 i) p( ^ - http.end();4 T R8 L# x3 K; o/ T
- return "";/ ]( f7 _3 G( s$ h
- }, q! p/ [+ e* b3 M
- }
+ f$ Y+ Q2 K- |, ~% R+ J - void mainAction() {- Q6 p; `) V$ c; M# Y0 C
- // 发送请求3 M) o: p$ j9 q! P& v" t0 O( b
- doGet("http://google.cn");, y3 n$ k; g3 m) x. b1 u
- }$ ^5 r9 C9 v9 q: T: m) l
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