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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)) ]2 \2 B6 N4 q. G/ a5 R8 T
- #include <ESP8266HTTPClient.h>0 \' F, D5 y$ |- S M7 m
- #include <ESP8266WiFi.h>. G8 a1 I# ?4 f# Z3 G" f8 U& S
- #include <ESP8266WiFiMulti.h>5 Z9 V6 w5 ^8 s" | x
- #include <ESP8266WebServer.h>
% G( J% v; Y; V9 y" J+ l% _: q2 u* ` - #include <arduino.h>
) Y2 b1 a4 m- s. k- o* o8 e$ ? - ESP8266WiFiMulti WiFiMulti;
' K, A- D" g* i8 l$ P7 K# l$ t - ESP8266WebServer server(80);
% |2 s, k( j+ V - const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";' a$ V5 r+ {; \ Z4 a4 T6 T g
- ADC_MODE(ADC_VCC);8 Y) J! r1 D" Q! f; ~
- void setup() {4 y9 x! B/ C' h3 V# Z
- Serial.begin(115200);4 _ u5 ~( e* e0 \5 f1 O" H! T
- Serial.print("\r\n\n");
9 |: j% s( h: C! T - pinMode(2,OUTPUT);
+ O2 s5 J- ?0 K4 r8 T - // WIFI) a+ ~ Y. x$ C7 Q3 B; b4 m- \% F" `
- WiFi.mode(WIFI_STA);
$ T. W7 U( G G6 l" x3 J/ V - WiFi.hostname("Sparkle");
( Q2 W' W. E, V# p' u9 I - WiFiMulti.addAP("wifi ssid", "wifi password");& }$ ?/ J) U- _5 d/ Q& O& ]2 w
- int tryNum = 15;
2 j: b6 X! y! n4 W - Serial.print("Connect WiFi");
+ ?& k# Q- {5 s0 [& B- _ - while (WiFiMulti.run() != WL_CONNECTED) {
! b T: p- G# W* s - digitalWrite(2,0);( c/ n, w7 c5 O6 c
- delay(200);+ P1 A: d ^5 H! l
- digitalWrite(2,1);
3 k- j5 t0 n4 s' I! x$ e - delay(300);, Z* `; X3 E! S% m! J
- Serial.print(".");
/ T: n5 H0 A& O" b0 \ - tryNum--;7 R$ ~% T# N* L+ q& p- q Z* @
- if (tryNum == 0) {3 v2 l1 Q4 d' N0 R! T" y
- // 1min& D- C% g: v9 S' ?* f
- // ESP.deepSleep(60e6);( [" x! I, K' ^7 N
- ESP.deepSleep(0);
5 Y9 \7 k9 b7 X8 i% j [+ Y - }
' h0 P, O t+ ]+ @! ]! Q - }
( p& I4 C" N, _9 s* d) c - Serial.print("\r\n");
. Z7 q( I( O6 q6 x5 n, M% Y: h - digitalWrite(2,1);( ~/ Q$ U% S6 ~( z0 @/ u; ~$ {
- Serial.print("IP address : ");; O- B" @# s4 v7 ^
- Serial.println(WiFi.localIP());2 {; n4 i: G0 v: F m
- server.on("/", HTTP_GET, [](){
( J* B' }3 e: |$ o - server.sendHeader("Connection", "close");
: A8 x) `! e& _+ v - server.send(200, "text/html", serverIndex);$ }2 J, S j8 f$ h3 _5 T
- });
! r K7 E1 D B- `- a" ] - server.on("/update", HTTP_POST, [](){: T" E6 K, b) Z/ ]6 e8 X1 d
- server.sendHeader("Connection", "close");
/ m4 f6 b9 A; K, [& Q4 F$ u& b, C - server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");( p5 T5 [5 [ ? ]
- ESP.restart();5 F% l" ]! [ r
- },[](){
, C) X w% Y/ {% J: w$ p/ c - HTTPUpload& upload = server.upload();: z9 o+ c2 u* y |
- if(upload.status == UPLOAD_FILE_START){
, _; W: ~2 w) a+ c( X$ X* C - Serial.setDebugOutput(true);, r: ^4 o' h7 }- U
- Serial.printf("Update: %s\n", upload.filename.c_str());+ E3 l) g9 j! u! H( ~! [3 p
- uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;1 l3 |- A; a e& J% ]- S) l- g* w
- if(!Update.begin(maxSketchSpace)){" U# U2 R& M5 L
- Update.printError(Serial);
7 a/ a7 j7 X) O - }( ~6 f( J% |/ I' Q6 i3 n) \$ _
- } else if(upload.status == UPLOAD_FILE_WRITE){
3 X v) N Y5 \1 E; d( I+ L. k - if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
4 x4 T& Q9 a- c5 q - Update.printError(Serial);+ |0 i9 o) i Q6 A- j
- }4 S$ z3 v3 z) ?
- } else if(upload.status == UPLOAD_FILE_END){8 I: {; y) p. L0 o* K7 y4 b
- if(Update.end(true)){" ]6 |) j9 L7 o3 U) _) G3 \
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);1 b! F- B: M" G |) m, s2 ?
- } else {
- B0 C0 }$ S/ i' D- M - Update.printError(Serial);+ \& \3 r5 Z$ l+ O7 b6 C2 D5 O1 Z
- }% x% R9 o, R. x: Y4 k# n
- Serial.setDebugOutput(false);: ]9 I% d+ R7 N
- }1 `/ G4 S* p) s! R0 V
- yield();% y) H4 c1 d) u6 A. }
- });
7 W x( E6 c9 L9 H+ @! s - ( v; r' l/ y, r4 K! X
- digitalWrite(2,0);2 u6 f2 Y, d/ I6 B* r% {, w
- mainAction();
& u: P9 V4 U+ K - if (digitalRead(0)){
3 W, S" a3 Y1 ] - ESP.deepSleep(0);0 T$ W* g. m1 R0 Q4 {% ]: K" R
- } else {
6 t& x/ u& v r/ w, X# T - server.begin(); k( F* y" |3 n, b. u6 O
- }
; d: P5 z& n$ Q - }
% O, x" x4 E( e6 d9 G! r: |4 W - void loop() {
" r! k# l, t6 d0 x" Z5 _6 r6 { - server.handleClient();
+ n0 F* e: f8 R6 t - delay(1);7 M" g' a* a, `) a- e/ f
- }
}& p! w. d) Q, A- B' D% b - String doGet(String url){8 ]$ i6 Q7 j* ], r
- if ((WiFiMulti.run() == WL_CONNECTED)) {2 s; x6 e/ u! L
- HTTPClient http;
. [6 n5 b; Q r - Serial.println("[HTTP] begin...");
1 o: g8 l& s) u5 h0 y% G, C - if (url.startsWith("https")) {6 h$ k9 o5 j& A3 L) f) y
- http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");) q6 C5 e+ @3 b+ ~
- } else {
$ Y# J, M& j/ U& N: q) @ - http.begin(url);" L1 l7 r- d) @6 Y2 ?( K
- }: e6 Z' E9 N2 F6 {& Z: R
- Serial.println("[HTTP] GET...");
6 [; @ R! m# e, F0 V$ N - int httpCode = http.GET();8 D, K' @5 F1 j, {5 j( }9 v
- if (httpCode > 0) {/ l9 {6 } T% N! {
- Serial.printf("[HTTP] code: %d\n", httpCode);
% p9 d" \ h* H. ~% C - if (httpCode == HTTP_CODE_OK) {8 t. d5 @/ l5 s
- String payload = http.getString();
0 e X2 U. k& L) Y+ T# V$ y - Serial.println(payload);
' K9 T; J/ x- q) ^/ Q v! f - Serial.print("\r\n");
- x2 W6 Z9 z5 W3 } H. b5 } - return payload;
2 V2 C) r- h! O; L0 c% } - }
8 E( M: c. ]1 S6 _9 n - } else {
8 S' h: Q# \0 a& Q$ d& _ - Serial.printf("[HTTP] GET... failed, error: %s\n",; v- {- @9 i6 B/ }6 S7 \" K- ?
- http.errorToString(httpCode).c_str());
+ f8 w% Y; Y: P9 W$ i9 C - } }; N) ] B& F3 Y! G4 ^
- http.end();
) A7 x" F; f, a! |) P. j+ K - return "";
; L4 p6 a Y' D9 _ - }! g5 H& d+ C, R( W
- }
0 _1 Q `( c8 C- e$ o - void mainAction() {
6 O3 o v0 ~, j+ g8 H - // 发送请求
# d* [/ E, A& p$ F+ x+ S( g: i - doGet("http://google.cn");
' T, i0 u/ X6 r @# ~ c - }
0 O$ h7 @5 u' Q( @
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