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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)( p) n5 [. S k0 k
- #include <ESP8266HTTPClient.h>0 X) X+ _# i6 j
- #include <ESP8266WiFi.h>
* P$ {% T' P+ l0 ` - #include <ESP8266WiFiMulti.h>
: Z4 ]" q0 y- M- u G - #include <ESP8266WebServer.h>
+ B- E( `" D8 c' a/ n- [ - #include <arduino.h>6 J2 D. k$ g$ ^# y" [8 X$ l
- ESP8266WiFiMulti WiFiMulti;. G! G, @9 D( q1 ~
- ESP8266WebServer server(80);/ P7 h7 j4 I9 t9 P0 l) K7 c
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
2 t% L1 s' U! G, J6 w& ^ - ADC_MODE(ADC_VCC);
# U7 j( k {, ^! h2 u' f - void setup() {
0 q' U! T6 ^2 O; X, K5 i9 m - Serial.begin(115200);: Z s. U* n4 Z3 T
- Serial.print("\r\n\n");$ H+ C: h. j. Z8 s6 l
- pinMode(2,OUTPUT);( O8 g1 J+ Z. t
- // WIFI1 S5 h$ C) C" P
- WiFi.mode(WIFI_STA);3 D1 P, h" P4 ^- t
- WiFi.hostname("Sparkle");/ E" n4 R2 c: S! k* j
- WiFiMulti.addAP("wifi ssid", "wifi password");& I- W9 N6 }/ R: ?7 s# P
- int tryNum = 15;! @+ h7 i1 l8 l' p j- Z L% O0 o
- Serial.print("Connect WiFi");( ^+ A+ i1 v( R; b% Z% G0 l
- while (WiFiMulti.run() != WL_CONNECTED) {
3 _; G4 D1 b1 i - digitalWrite(2,0);
% K4 a% \0 Z8 E' e* ~ - delay(200);
7 j2 \+ H6 f5 I! O" d - digitalWrite(2,1);# W' h9 h% p' H
- delay(300);
- d8 x3 G5 H6 ^6 \0 F* ? - Serial.print(".");
9 y: a; x2 u" a& L+ r0 W9 D - tryNum--;' p/ F7 l8 D- U. C
- if (tryNum == 0) {
* j7 i+ m* O0 ]" u! [ - // 1min
3 J3 T+ Z; W$ P - // ESP.deepSleep(60e6);; S% p! ?7 S6 i$ G3 U. r
- ESP.deepSleep(0);
! y5 G/ _2 D4 F9 k3 ^( O; T7 n, V. r" q - }
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- Serial.print("\r\n");3 _" Z L5 j9 G* R0 Z1 _: Q6 g
- digitalWrite(2,1);( y( ?# o" X( T8 X8 {; A
- Serial.print("IP address : ");
+ v) P% d7 X1 x5 d) L - Serial.println(WiFi.localIP());
2 D: d& D6 p. p: R* X' @ - server.on("/", HTTP_GET, [](){
/ P+ v# ]" L% e d - server.sendHeader("Connection", "close");
) s6 t M& Q( ], @; ? - server.send(200, "text/html", serverIndex);/ f' h2 U2 e# {5 v) S
- });$ g6 X0 R# K4 [8 j1 T) j/ \
- server.on("/update", HTTP_POST, [](){
' y0 h0 N: l* } y% e - server.sendHeader("Connection", "close");( v, b1 a! N) J( w2 W
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");# q. W! M5 Y" v5 n1 }6 k2 v" _
- ESP.restart();1 S \+ W+ Z* i
- },[](){
1 R3 j6 W4 d' V8 X" g& J - HTTPUpload& upload = server.upload();* k' i2 \/ q) O! k( \
- if(upload.status == UPLOAD_FILE_START){
2 s: `: A# i- d* e: v' o2 W, ] - Serial.setDebugOutput(true);: g8 w/ Q% {% f. h) g5 a/ T) [
- Serial.printf("Update: %s\n", upload.filename.c_str());
5 m& {9 e! F: U1 t - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
' ^, A( \! w* @; @( K$ z- j - if(!Update.begin(maxSketchSpace)){' S' Q4 ?: S1 b2 L X/ l$ v- V- v
- Update.printError(Serial); C1 N2 ]* \/ G( P: `% a# u: M6 \
- }( j# ^2 p: Z' z& A" S; B( }2 i
- } else if(upload.status == UPLOAD_FILE_WRITE){' a J. t7 p7 t( |0 W
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){# |+ i; d* p& A& j$ x1 d3 U* U
- Update.printError(Serial);
! y( @! w0 y) a2 l/ A% d* t - }
1 h6 T( q( q; W1 c# L; m- D - } else if(upload.status == UPLOAD_FILE_END){/ l" G5 F- U; |( T- o( b* c
- if(Update.end(true)){
- Q6 r" F% I w% H% l6 A8 Y# [ g - Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
, Q7 e/ P$ J( N: Z- X0 J - } else {
5 r2 ^: X) h' H. o- Z3 V - Update.printError(Serial);
( a ^: }/ v, S$ @/ N9 u$ V! R - }0 R g6 [: N! G0 f0 \# @2 W7 X
- Serial.setDebugOutput(false);
% q3 h3 Z! u: W - }
1 G0 e* P; @( d - yield();6 s4 {2 k3 u% _6 D: A/ ]( ~/ J
- });
9 d; @; V* m5 R4 f3 N& Q -
1 T% W3 a. o) ` - digitalWrite(2,0);+ e/ p/ t7 M0 M$ C. d8 W1 i- D$ u
- mainAction();* e; l5 L ~& e {9 T
- if (digitalRead(0)){3 {0 T: R5 u( C6 u C' P
- ESP.deepSleep(0);
/ }7 r6 S$ X/ E) O - } else {
5 b6 Z' ]$ A+ u) I# r - server.begin();
; B G8 h: T5 ? - }5 Y: E& c+ B/ |7 H6 t6 \) ?( j! N
- }
/ s$ @. r0 T- `6 ]- F) J* L+ h! D" h - void loop() {+ z% e8 B! p9 i' H* Y/ k
- server.handleClient(); A% v1 m6 Q7 F( ?/ {
- delay(1);" w( N- r+ r9 j/ N. {
- }- {& `. g9 q# r Z; z
- String doGet(String url){9 q5 ~2 o0 L! U! c
- if ((WiFiMulti.run() == WL_CONNECTED)) {, n% q9 R, H8 ~5 Z+ ~5 w" _8 T
- HTTPClient http;4 F' Y6 J) E9 g, O6 z0 X8 T$ x- |
- Serial.println("[HTTP] begin...");& j2 t; f9 X) e+ D3 I9 Z# u9 W* W
- if (url.startsWith("https")) {
* x- ]6 f5 W8 N U6 d* z+ u - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
0 B4 Y5 {4 L% d& h - } else {1 d- }6 w2 {* v# b3 J# L ^) m( x
- http.begin(url);! e, e8 y1 A W" K/ l' v' J
- }
9 Z$ |" u' j' O0 Z' P8 D( n - Serial.println("[HTTP] GET...");
% i8 m2 S, J2 o1 C - int httpCode = http.GET();
# I. O4 O) ?: o3 H f - if (httpCode > 0) {
$ W& C* t- @7 J% {( W - Serial.printf("[HTTP] code: %d\n", httpCode);+ S5 ]' X* f. S5 I0 q3 A* h$ U
- if (httpCode == HTTP_CODE_OK) {
0 K. Y% u% h5 ?* _; E+ i4 S6 L - String payload = http.getString();+ v& o. z# {3 z1 Q2 }
- Serial.println(payload);$ U' Z# E- U2 R" K) w1 v. J
- Serial.print("\r\n");. I- U" S4 M/ W: Z3 A* L0 X
- return payload;
6 o* L+ l% F1 B/ |% c' B0 h+ b - }4 Y- ~; z- p3 T3 I. Q. \
- } else {
8 r9 a" q$ R% d# r8 e, L) P - Serial.printf("[HTTP] GET... failed, error: %s\n",
8 ^. Q9 ?+ b) K" L - http.errorToString(httpCode).c_str());/ J3 N; q; n1 b: W
- }
5 u+ O3 E7 V' R8 n; S3 ^9 c h - http.end();8 L N5 T( j5 v' x* k- c
- return "";" ~ y6 d! y% R
- }
h* n9 f) f6 c2 R - }5 c1 e7 S7 |2 @" D6 e6 U! Y2 h
- void mainAction() {
5 O2 O6 J( Q# q: @# B - // 发送请求$ O; ~: b5 S+ X: t6 E# m
- doGet("http://google.cn");
7 _. E+ O& _% d K! i - }6 f, q" x% q7 I5 L. f3 y. r
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