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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)# h& M+ s* M% m9 N2 y
- #include <ESP8266HTTPClient.h>
3 v7 y) r! ^, H7 f5 x - #include <ESP8266WiFi.h>
, h4 c0 m$ {9 E8 x A9 t# J5 W1 e. w - #include <ESP8266WiFiMulti.h>
2 S, [! X; r6 |6 I6 Z3 g - #include <ESP8266WebServer.h>
& O" Q8 c, Y8 A% n. r - #include <arduino.h>
( k0 F5 H2 L9 t' D3 t - ESP8266WiFiMulti WiFiMulti;. N$ ^4 {8 c3 U- K
- ESP8266WebServer server(80);9 y/ `* A# x# q7 u
- const char* serverIndex = "<form method='POST' action='/update' enctype='multipart/form-data'><input type='file' name='update'><input type='submit' value='Update'></form>";
: w0 `& _2 C1 @* d6 q - ADC_MODE(ADC_VCC);
* a5 V3 u$ Y z# q9 P - void setup() {
" _2 O& x* M; Y! A - Serial.begin(115200);5 ~8 U5 {8 w/ {3 B5 [" ]0 t( H
- Serial.print("\r\n\n");
$ _, H, @/ T: H( [. N - pinMode(2,OUTPUT);: r4 j* S X" f0 X$ Q, ]
- // WIFI0 w6 w5 L9 u) I4 m. B
- WiFi.mode(WIFI_STA);
: A* z, a3 P5 Z% P& U1 N( h - WiFi.hostname("Sparkle");! Z' K6 S& @. p) L
- WiFiMulti.addAP("wifi ssid", "wifi password");
1 C' J/ x& \$ G6 A0 ^ - int tryNum = 15;
$ Z' V, k4 i6 k( c - Serial.print("Connect WiFi");
! s3 D$ J7 i! W1 f - while (WiFiMulti.run() != WL_CONNECTED) {
# R1 z M% P1 y9 ~' M# t! B/ G% b - digitalWrite(2,0);
9 v+ O; Z' z( [% @6 T1 I- I7 B - delay(200);
! H5 t( D( m( Y2 C - digitalWrite(2,1);
5 @& K9 f. e+ j/ z - delay(300);8 ?9 ^9 v/ Y7 e4 Q* `8 t' S
- Serial.print(".");
" [2 m3 m1 B/ e* O - tryNum--;
* o- g* ~2 X j i# w# _: J* B - if (tryNum == 0) {! o( ?: {6 } v4 b( U
- // 1min
+ W# q" w {& Y8 M- O - // ESP.deepSleep(60e6);
2 N+ a( P# n* M: K# h1 J+ s - ESP.deepSleep(0);
* E. u3 b8 t& l: ~9 Q M/ _ - }6 r* P2 `4 {2 q0 |
- }
* {% Z8 h$ Y7 ~2 f: O& ?6 H - Serial.print("\r\n");) }+ |( S5 o! B, `; ^
- digitalWrite(2,1);
/ w5 v+ w1 W, h# D4 l1 i7 G/ F6 { - Serial.print("IP address : ");
8 Y& Q9 w9 \" x, W; v4 u - Serial.println(WiFi.localIP());
! z j# ]! g3 K( E3 a" O; e - server.on("/", HTTP_GET, [](){
% X, s! v8 P' x - server.sendHeader("Connection", "close");1 `7 n H$ E! k1 j& Z' I. C
- server.send(200, "text/html", serverIndex);
: k" l" u- Z/ P- |, C5 ^0 L& u8 \' L - });
- K! Z: a, e# z( G& W# \0 n - server.on("/update", HTTP_POST, [](){- H( ^8 W4 m; g6 w1 Z& X
- server.sendHeader("Connection", "close");/ f& P0 e9 O2 B: G
- server.send(200, "text/plain", (Update.hasError())?"FAIL":"OK");
( x, [7 o5 k( O- `: Q - ESP.restart();* V0 m }; g/ a! F% H/ D0 ~
- },[](){+ S0 m5 d: e2 {1 \% R
- HTTPUpload& upload = server.upload();7 k1 @/ |) Z: y! u3 W
- if(upload.status == UPLOAD_FILE_START){
/ z" s7 h5 O6 ~9 F - Serial.setDebugOutput(true);
; W( T" }; l5 O - Serial.printf("Update: %s\n", upload.filename.c_str());
! j1 p3 [4 [! e - uint32_t maxSketchSpace = (ESP.getFreeSketchSpace() - 0x1000) & 0xFFFFF000;* `; e& @( O; O" k( [+ d3 M1 | s
- if(!Update.begin(maxSketchSpace)){
4 X6 N5 L) h( _ c; ?# h! m { - Update.printError(Serial);
; M( Z: w3 e2 R( M7 n2 C! A6 c" J' Y& q - }" e8 ]3 i- j3 z+ h
- } else if(upload.status == UPLOAD_FILE_WRITE){0 T. t- X0 o# ?9 t$ ?% c
- if(Update.write(upload.buf, upload.currentSize) != upload.currentSize){
& x2 r0 A% j) L8 Y' s) J - Update.printError(Serial);
7 T$ x" _) S+ c2 z - }
7 `5 y! @* H/ O; |4 O - } else if(upload.status == UPLOAD_FILE_END){
1 M4 i7 T+ L% I - if(Update.end(true)){: y& u9 Q1 b2 }3 A, `( z
- Serial.printf("Update Success: %u\nRebooting...\n", upload.totalSize);
* }3 e( i& g. C5 g Y6 n* c4 S* v - } else {
" \: Y8 C) a+ b3 B& i - Update.printError(Serial);7 s* [0 O' x6 a+ \8 D- B$ h
- }
. k, L: J9 y6 D4 _ - Serial.setDebugOutput(false);
3 _. }( }1 }4 C% Q4 u m% Z% T' ] - }
% V7 q: O; ?3 x( M - yield();* I6 u3 b6 |# z) ^! y
- });
. S$ b2 m% h4 o0 I/ t X1 V - 5 n, E! e/ G, X L' E: ]
- digitalWrite(2,0);
* ~$ q2 @; e) x: a - mainAction();
$ e( [4 r3 X7 }6 ]' @' _, g @1 _ - if (digitalRead(0)){# o8 l7 S2 C* S9 y* W
- ESP.deepSleep(0);9 j9 L7 @9 h- n" V* k! l/ W
- } else {3 i% j- e! a8 J9 z2 E3 M- Q4 ]
- server.begin();2 Q1 a) @8 c' O5 F3 @
- } d. J& v- f0 o$ Q4 B7 x# u# i) O
- }
3 b$ F+ @# h6 X+ @3 [) @- e - void loop() {
- C& n; t' p% U% Y - server.handleClient();, s( j7 O* P4 \- P( B. q
- delay(1);
+ @% G1 u) {2 |6 g - }, `4 ]& }+ c2 ?, M o
- String doGet(String url){5 M" X' k7 U1 q5 G8 U! v1 S0 T
- if ((WiFiMulti.run() == WL_CONNECTED)) {/ X# i. q( ~8 J1 g2 U6 v. ^0 z
- HTTPClient http;
$ S; m" x, K0 ]# C. Y. U - Serial.println("[HTTP] begin...");
+ y! K" f0 J2 D - if (url.startsWith("https")) {
( M1 V& J" O. h6 d% B& L - http.begin(url, "7a 9c f4 db 40 d3 62 5a 6e 21 bc 5c cc 66 c8 3e a1 45 59 38");
% W- e; \8 e2 m* K - } else {% R/ a3 G; r& o( ]6 m: T
- http.begin(url);
' Q1 h2 @8 V& R3 D0 R - }
. C/ Q3 M* B( Z* H8 C - Serial.println("[HTTP] GET...");0 \; j( ?. b+ n9 m: C
- int httpCode = http.GET();! F, z, n( Z. r& h
- if (httpCode > 0) {; w' W$ d y4 } v7 I( R; ^" o
- Serial.printf("[HTTP] code: %d\n", httpCode);
" W0 a8 E1 z$ Q% D$ t& @% v! o - if (httpCode == HTTP_CODE_OK) {
% ?. m* m" y, |) c, z+ W - String payload = http.getString();
: ~( E: m" k& B! {2 o D - Serial.println(payload);: ?0 y# s% v; i) E3 ]: \2 T
- Serial.print("\r\n");" N' `6 [. e% @
- return payload;5 t4 h% y1 [0 o0 ?# g8 s
- }1 s- u/ h* r4 @8 U7 H. O
- } else {
' ^0 B J: `$ R' L - Serial.printf("[HTTP] GET... failed, error: %s\n",
. O4 Y; `+ T5 z; A - http.errorToString(httpCode).c_str());# }7 O6 ~9 w$ Y6 c9 X' X
- }
# y( K0 B2 v7 i" C( ^3 D' f - http.end();
; O) }3 S, c- x; [, k% Y - return "";! h: t+ W$ ^0 ]( D% Z
- }
Y! M$ P3 J: n& A6 a - }! g. k$ r) M$ T6 H
- void mainAction() {$ V2 y+ ?% K3 d3 c) n& H# K
- // 发送请求7 q5 G. V. {5 }$ o8 i% j
- doGet("http://google.cn");
% `/ U- d: J) l6 b - }. ^8 V2 K/ ?2 ? K4 z( {" W- f
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