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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)
/ G% D d, X& e! T6 }3 F- #include <ESP8266HTTPClient.h>
7 x' u" M5 f; A3 i& z - #include <ESP8266WiFi.h>
# M4 l/ l7 u2 Q4 S( n) T P - #include <ESP8266WiFiMulti.h>3 p1 ~/ A6 j& L3 Q9 e, u
- #include <ESP8266WebServer.h>
# E H, I; n/ n4 f8 x" N$ {) r4 |1 ^ - #include <arduino.h># i8 A7 ]. r/ t
- ESP8266WiFiMulti WiFiMulti;: {$ T) J! @+ s1 Z8 P* Z
- ESP8266WebServer server(80);6 a$ z/ ?' p4 M9 i# @- ?" B& @" z
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";- g- @; X7 V: j
- ADC_MODE(ADC_VCC);1 X% [8 E& C# h, Q. x( P6 [
- void setup() {
& ?' ]- `0 p3 P4 T. X( T6 p - Serial.begin(115200);
0 Y# B- I. p# k5 K( }0 x( }& e - Serial.print("\r\n\n");/ k% ~" ?5 i& |3 q5 O( p
- pinMode(2,OUTPUT);
: ~; C# B {' G1 r - // WIFI! H w7 G" O/ z" ~' |1 x
- WiFi.mode(WIFI_STA);" Z$ b3 V5 v( j' u! O2 q
- WiFi.hostname("Sparkle");
6 A) r, o |4 {7 q6 a0 G - WiFiMulti.addAP("wifi ssid", "wifi password");: q0 x6 X( B, j; B4 F5 a1 `
- int tryNum = 15;
. X2 P, a. j# h. M8 g. X - Serial.print("Connect WiFi");
+ U6 D& m* S6 |% G! u; y! h - while (WiFiMulti.run() != WL_CONNECTED) {
2 ]$ [1 w% `( c# G( J; e& k6 P - digitalWrite(2,0);
4 @$ p: k2 l- t, \; c4 o, {% \9 f - delay(200);
! n, d* @# ^' m7 I3 F - digitalWrite(2,1);$ r9 c0 R. @+ t6 M
- delay(300);
$ j5 Z; R1 Q% [4 _( b' u1 P6 y - Serial.print(".");; B4 b! [ e# P
- tryNum--;
# b% }. ~& }7 G' G$ ^ - if (tryNum == 0) { Z' p! j9 }7 N! F
- // 1min- z) D, q5 a5 B- j
- // ESP.deepSleep(60e6);
* X) c7 o% p+ ]( i4 }6 i - ESP.deepSleep(0);
3 \. g4 t# H; Z g0 J - }
( P9 [( ^, ^# d - }% i3 K$ V' H: q" @: y3 B
- Serial.print("\r\n");
+ W$ z: L/ i5 h1 l+ `( z - digitalWrite(2,1);8 X* I. B5 {" A5 M2 }8 g D- J$ S: o
- Serial.print("IP address : ");5 p2 {% h( Y; A: `5 u
- Serial.println(WiFi.localIP());! A7 r. d9 { |9 y S' N
- server.on("/", HTTP_GET, [](){
8 _ @4 S, F" X" E - server.sendHeader("Connection", "close");
. S( l1 y! o( Z5 Y) {- n - server.send(200, "text/html", serverIndex);: i6 O+ N; E+ Z3 R, [+ D( j7 O
- });
2 b! K7 O' F' O0 O9 Z- y - server.on("/update", HTTP_POST, [](){: j) U9 r' o% b' p5 t1 p) j
- server.sendHeader("Connection", "close");
) g" q) |. T) L/ {2 m7 E) g - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");! d. w+ o2 d! @, }: z) f
- ESP.restart();) H% d: h" i% M1 @& V+ x- l+ e
- },[](){
2 _8 M% \) R' I8 w7 S - HTTPUpload& upload = server.upload();
, l% J! a& s3 \% |/ J - if(upload.status == UPLOAD_FILE_START){
9 m. A4 I& A+ a - Serial.setDebugOutput(true);& ~: ~! a" F) @% y$ V; b% Q
- Serial.printf("Update: %s\n", upload.filename.c_str());
p0 t% R/ O3 F; P) s - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;
6 A8 Q$ y/ r7 _7 v - if(!Update.begin(maxSketchSpace)){. N `% {+ [; D/ a
- Update.printError(Serial);
8 U- i/ l; ^! s( T5 W7 Z - }9 I3 D% ~/ f: Y* p* r Z0 |5 j& N3 s
- } else if(upload.status == UPLOAD_FILE_WRITE){8 f3 r/ ?. R8 W
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){9 j* V+ m8 Q/ c0 o
- Update.printError(Serial);; n- h& Q6 W/ {) s! e% b7 {
- }2 x8 z# W+ U5 x: I2 ?+ R
- } else if(upload.status == UPLOAD_FILE_END){2 w8 ^6 m; }- f3 _* }
- if(Update.end(true)){6 P: u' ?& W* n8 y! q+ q
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
+ s9 _+ j/ G0 U1 ? - } else {/ v* ?. d# \& _, x
- Update.printError(Serial);, @# j( ~, o, M+ { n4 n
- }
* y5 {& T( \. \4 \3 A# G - Serial.setDebugOutput(false);
( T) J* W3 v( l - }/ l7 }( }$ r6 a( B' |: i) ?
- yield();7 Z. Y# y/ K$ v0 \" c; I
- });$ }/ z9 u" w9 z/ o; G* L
- 9 P7 x5 {) Z) T" N) Y' h
- digitalWrite(2,0);
) u- l% [ ~# z, ^ - mainAction();. U" V* f- H8 P! n" q
- if (digitalRead(0)){: x7 F# i4 B7 q$ D, i% w
- ESP.deepSleep(0);$ d) t7 S4 j, M( u. Y) }* K
- } else {
; K. p; }; W+ S" `8 X - server.begin();
1 ]) _8 E; Q$ ]9 z - }) H2 J" G6 H3 N4 Y2 M
- }
+ y: K0 m3 Q, }; U - void loop() {
* }. B* q+ T; H - server.handleClient();8 I/ |5 T( ]1 P8 c
- delay(1);
9 i- X, K3 j, ~+ t2 @* P - }& ~- w' a9 \# A& L8 o
- String doGet(String url){8 `" ]' k3 t/ v# a
- if ((WiFiMulti.run() == WL_CONNECTED)) {% S2 J# x( b( ]+ q3 ?
- HTTPClient http;5 x4 M$ p+ k* V+ ]
- Serial.println("[HTTP] begin...");
% T5 @1 V3 [9 I9 ` - if (url.startsWith("https")) {
. z, R9 U ~' e' a; Q C/ I - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
) R9 s# z! C/ L - } else {
0 `7 U3 G+ b& _) }( Z" Z: F- } - http.begin(url); l0 V. |3 q5 ^& e. J+ A
- }6 y; s/ U4 i7 K, _: f
- Serial.println("[HTTP] GET...");, B, V9 c7 r! _
- int httpCode = http.GET();+ ]5 W$ E6 J* F7 D9 f2 b
- if (httpCode > 0) {- H" D8 I1 V# Q7 K6 S4 J
- Serial.printf("[HTTP] code: %d\n", httpCode);: ], a! \3 S! G) t* G' V
- if (httpCode == HTTP_CODE_OK) {
9 a3 ~4 _$ G9 o0 ]; Q+ q' h( C - String payload = http.getString();" b H! s1 \7 @& T9 M4 C3 W0 O# U ^
- Serial.println(payload);" `% s5 B2 {+ ?
- Serial.print("\r\n");; b: j; w8 F. x+ e
- return payload;$ r; @* X, ~! V$ }; D1 d
- }, v, f6 J0 g0 r0 C: e6 |- N
- } else {7 q3 M" U. z* A t$ D
- Serial.printf("[HTTP] GET... failed, error: %s\n",, T8 C; J' j0 J, L; n+ r& z( s. S) G
- http.errorToString(httpCode).c_str());
; p1 i1 o# k e. \) @9 `0 D - }
. g9 I0 k, ~7 B8 f - http.end();; L8 _8 W0 c* _$ p$ i
- return "";: [: }! F. t, U: A- q
- }6 Q6 p8 l; k2 @5 X8 @; r) e q- t6 q
- }
# n# x. [: h0 j: e" D - void mainAction() {& K2 k; U* o& \" h+ x
- // 发送请求) K; c# y4 p2 ^
- doGet("http://google.cn");# q. }. ]2 g2 ?* C# v z
- }
q- Q# v6 q4 M8 P5 C
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